/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:00:18,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:00:18,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:00:18,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:00:18,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:00:18,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:00:18,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:00:18,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:00:18,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:00:18,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:00:18,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:00:18,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:00:18,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:00:18,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:00:18,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:00:18,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:00:18,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:00:18,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:00:18,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:00:18,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:00:18,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:00:18,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:00:18,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:00:18,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:00:18,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 23:00:18,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 23:00:18,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 23:00:18,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 23:00:18,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 23:00:18,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 23:00:18,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 23:00:18,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 23:00:18,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 23:00:18,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 23:00:18,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 23:00:18,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 23:00:18,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 23:00:18,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 23:00:18,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:00:18,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:00:18,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:00:18,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 23:00:18,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:00:18,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:00:18,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:00:18,513 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:00:18,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:00:18,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:00:18,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:00:18,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:00:18,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:00:18,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:00:18,514 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:00:18,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:00:18,514 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:00:18,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:00:18,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:00:18,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:00:18,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:00:18,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:00:18,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:18,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:00:18,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:00:18,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:00:18,515 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:00:18,515 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:00:18,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:00:18,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:00:18,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:00:18,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:00:18,719 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:00:18,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2022-01-31 23:00:18,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0b1ab742/ada4b3c527bf4c74ade6205ad09ebdb6/FLAG2537e60f0 [2022-01-31 23:00:19,203 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:00:19,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2022-01-31 23:00:19,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0b1ab742/ada4b3c527bf4c74ade6205ad09ebdb6/FLAG2537e60f0 [2022-01-31 23:00:19,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0b1ab742/ada4b3c527bf4c74ade6205ad09ebdb6 [2022-01-31 23:00:19,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:00:19,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:00:19,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:19,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:00:19,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:00:19,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af90405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19, skipping insertion in model container [2022-01-31 23:00:19,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:00:19,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:00:19,502 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/double_req_bl_1130a.c[4166,4179] [2022-01-31 23:00:19,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:19,519 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:00:19,566 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/double_req_bl_1130a.c[4166,4179] [2022-01-31 23:00:19,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:19,575 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:00:19,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19 WrapperNode [2022-01-31 23:00:19,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:19,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:00:19,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:00:19,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:00:19,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:00:19,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:00:19,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:00:19,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:00:19,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (1/1) ... [2022-01-31 23:00:19,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:19,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:00:19,686 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 23:00:19,688 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 23:00:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:00:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:00:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:00:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-01-31 23:00:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2022-01-31 23:00:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2022-01-31 23:00:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:00:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:00:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:00:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:00:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:00:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 23:00:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-01-31 23:00:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2022-01-31 23:00:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 23:00:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:00:19,769 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:00:19,770 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:00:20,082 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:00:20,086 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:00:20,087 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-31 23:00:20,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:20 BoogieIcfgContainer [2022-01-31 23:00:20,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:00:20,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:00:20,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:00:20,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:00:20,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:00:19" (1/3) ... [2022-01-31 23:00:20,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed8b0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:20, skipping insertion in model container [2022-01-31 23:00:20,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:19" (2/3) ... [2022-01-31 23:00:20,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed8b0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:20, skipping insertion in model container [2022-01-31 23:00:20,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:20" (3/3) ... [2022-01-31 23:00:20,093 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2022-01-31 23:00:20,097 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:00:20,097 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:00:20,146 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:00:20,157 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 23:00:20,157 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:00:20,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 64 states have (on average 1.734375) internal successors, (111), 65 states have internal predecessors, (111), 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 23:00:20,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-31 23:00:20,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:20,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:00:20,189 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash -605065103, now seen corresponding path program 1 times [2022-01-31 23:00:20,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:20,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361030481] [2022-01-31 23:00:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:20,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:20,257 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:20,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:00:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 23:00:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:20,389 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 23:00:20,390 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:00:20,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361030481] [2022-01-31 23:00:20,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1361030481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:00:20,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:00:20,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:00:20,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458647429] [2022-01-31 23:00:20,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:00:20,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:00:20,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:00:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:00:20,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:00:20,425 INFO L87 Difference]: Start difference. First operand has 74 states, 64 states have (on average 1.734375) internal successors, (111), 65 states have internal predecessors, (111), 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 3.5) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 23:00:20,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:00:20,655 INFO L93 Difference]: Finished difference Result 142 states and 232 transitions. [2022-01-31 23:00:20,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:00:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-01-31 23:00:20,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:00:20,662 INFO L225 Difference]: With dead ends: 142 [2022-01-31 23:00:20,662 INFO L226 Difference]: Without dead ends: 69 [2022-01-31 23:00:20,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 23:00:20,666 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 99 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:00:20,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 96 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 23:00:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-01-31 23:00:20,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-01-31 23:00:20,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.459016393442623) internal successors, (89), 61 states have internal predecessors, (89), 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 23:00:20,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2022-01-31 23:00:20,697 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 96 transitions. Word has length 19 [2022-01-31 23:00:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:00:20,698 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 96 transitions. [2022-01-31 23:00:20,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 23:00:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2022-01-31 23:00:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 23:00:20,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:20,699 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] [2022-01-31 23:00:20,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:00:20,699 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:20,700 INFO L85 PathProgramCache]: Analyzing trace with hash 638815150, now seen corresponding path program 1 times [2022-01-31 23:00:20,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:20,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120395094] [2022-01-31 23:00:20,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:20,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:20,702 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:20,744 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:00:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:20,796 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:00:20,797 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:00:20,800 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:00:20,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:00:20,806 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:00:20,808 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:00:20,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:00:20 BoogieIcfgContainer [2022-01-31 23:00:20,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:00:20,825 INFO L158 Benchmark]: Toolchain (without parser) took 1602.56ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 116.6MB in the beginning and 158.0MB in the end (delta: -41.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:00:20,825 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:00:20,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.06ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 138.7MB in the end (delta: -22.3MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-31 23:00:20,828 INFO L158 Benchmark]: Boogie Preprocessor took 79.16ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 136.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:00:20,829 INFO L158 Benchmark]: RCFGBuilder took 432.16ms. Allocated memory is still 167.8MB. Free memory was 136.5MB in the beginning and 116.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-31 23:00:20,829 INFO L158 Benchmark]: TraceAbstraction took 734.47ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 116.2MB in the beginning and 158.0MB in the end (delta: -41.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:00:20,830 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 167.8MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 345.06ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 138.7MB in the end (delta: -22.3MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.16ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 136.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 432.16ms. Allocated memory is still 167.8MB. Free memory was 136.5MB in the beginning and 116.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 734.47ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 116.2MB in the beginning and 158.0MB in the end (delta: -41.8MB). There was no memory consumed. 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: 193]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L189] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L189] RET, EXPR fmod_double(x, y) [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 94 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 23:00:20,858 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...