/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 00:48:56,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 00:48:56,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 00:48:56,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 00:48:56,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 00:48:56,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 00:48:56,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 00:48:56,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 00:48:56,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 00:48:56,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 00:48:56,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 00:48:56,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 00:48:56,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 00:48:56,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 00:48:56,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 00:48:56,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 00:48:56,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 00:48:56,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 00:48:56,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 00:48:56,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 00:48:56,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 00:48:56,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 00:48:56,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 00:48:56,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 00:48:56,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 00:48:56,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 00:48:56,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 00:48:56,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 00:48:56,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 00:48:56,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 00:48:56,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 00:48:56,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 00:48:56,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 00:48:56,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 00:48:56,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 00:48:56,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 00:48:56,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 00:48:56,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 00:48:56,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 00:48:56,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 00:48:56,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 00:48:56,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 00:48:56,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 00:48:56,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 00:48:56,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 00:48:56,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 00:48:56,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 00:48:56,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 00:48:56,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 00:48:56,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 00:48:56,851 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 00:48:56,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 00:48:56,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 00:48:56,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 00:48:56,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 00:48:56,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 00:48:56,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 00:48:56,852 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 00:48:56,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 00:48:56,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 00:48:56,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 00:48:56,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 00:48:56,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 00:48:56,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 00:48:57,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 00:48:57,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 00:48:57,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 00:48:57,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 00:48:57,071 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 00:48:57,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1130a.c [2022-01-10 00:48:57,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7d131c/4123ce2c232943b0a3b4ca861c3029cf/FLAGb32c47bb7 [2022-01-10 00:48:57,469 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 00:48:57,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1130a.c [2022-01-10 00:48:57,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7d131c/4123ce2c232943b0a3b4ca861c3029cf/FLAGb32c47bb7 [2022-01-10 00:48:57,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7d131c/4123ce2c232943b0a3b4ca861c3029cf [2022-01-10 00:48:57,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 00:48:57,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 00:48:57,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 00:48:57,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 00:48:57,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 00:48:57,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a20e23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57, skipping insertion in model container [2022-01-10 00:48:57,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 00:48:57,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 00:48:57,658 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_1130a.c[2907,2920] [2022-01-10 00:48:57,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 00:48:57,663 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 00:48:57,693 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_1130a.c[2907,2920] [2022-01-10 00:48:57,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 00:48:57,702 INFO L208 MainTranslator]: Completed translation [2022-01-10 00:48:57,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57 WrapperNode [2022-01-10 00:48:57,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 00:48:57,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 00:48:57,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 00:48:57,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 00:48:57,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,743 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2022-01-10 00:48:57,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 00:48:57,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 00:48:57,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 00:48:57,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 00:48:57,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 00:48:57,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 00:48:57,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 00:48:57,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 00:48:57,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (1/1) ... [2022-01-10 00:48:57,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 00:48:57,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 00:48:57,811 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 00:48:57,819 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 00:48:57,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 00:48:57,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 00:48:57,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 00:48:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-10 00:48:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-10 00:48:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-10 00:48:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 00:48:57,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 00:48:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-10 00:48:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-10 00:48:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 00:48:57,937 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 00:48:57,938 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 00:48:58,170 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 00:48:58,174 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 00:48:58,175 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-01-10 00:48:58,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:48:58 BoogieIcfgContainer [2022-01-10 00:48:58,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 00:48:58,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 00:48:58,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 00:48:58,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 00:48:58,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:48:57" (1/3) ... [2022-01-10 00:48:58,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56367cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:48:58, skipping insertion in model container [2022-01-10 00:48:58,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:57" (2/3) ... [2022-01-10 00:48:58,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56367cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:48:58, skipping insertion in model container [2022-01-10 00:48:58,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:48:58" (3/3) ... [2022-01-10 00:48:58,181 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130a.c [2022-01-10 00:48:58,185 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 00:48:58,185 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 00:48:58,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 00:48:58,219 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 00:48:58,220 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 00:48:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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 00:48:58,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 00:48:58,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:48:58,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 00:48:58,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:48:58,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:48:58,241 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2022-01-10 00:48:58,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:48:58,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668533108] [2022-01-10 00:48:58,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:48:58,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:48:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:48:58,362 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 00:48:58,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:48:58,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668533108] [2022-01-10 00:48:58,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668533108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:48:58,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:48:58,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 00:48:58,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323814554] [2022-01-10 00:48:58,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:48:58,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 00:48:58,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:48:58,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 00:48:58,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 00:48:58,391 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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 5.5) internal successors, (11), 2 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 00:48:58,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:48:58,412 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2022-01-10 00:48:58,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 00:48:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) Word has length 11 [2022-01-10 00:48:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:48:58,420 INFO L225 Difference]: With dead ends: 93 [2022-01-10 00:48:58,420 INFO L226 Difference]: Without dead ends: 44 [2022-01-10 00:48:58,422 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 00:48:58,426 INFO L933 BasicCegarLoop]: 65 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, 65 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 00:48:58,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 00:48:58,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-01-10 00:48:58,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-01-10 00:48:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 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 00:48:58,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2022-01-10 00:48:58,452 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2022-01-10 00:48:58,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:48:58,453 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-01-10 00:48:58,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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 00:48:58,453 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2022-01-10 00:48:58,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 00:48:58,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:48:58,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 00:48:58,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 00:48:58,455 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:48:58,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:48:58,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2022-01-10 00:48:58,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:48:58,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531506607] [2022-01-10 00:48:58,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:48:58,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:48:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 00:48:58,537 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 00:48:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 00:48:58,594 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 00:48:58,598 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 00:48:58,600 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 00:48:58,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 00:48:58,604 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 00:48:58,608 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 00:48:58,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:48:58 BoogieIcfgContainer [2022-01-10 00:48:58,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 00:48:58,639 INFO L158 Benchmark]: Toolchain (without parser) took 1153.09ms. Allocated memory is still 223.3MB. Free memory was 173.5MB in the beginning and 149.7MB in the end (delta: 23.8MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. [2022-01-10 00:48:58,639 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 223.3MB. Free memory was 189.8MB in the beginning and 189.7MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 00:48:58,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.32ms. Allocated memory is still 223.3MB. Free memory was 173.3MB in the beginning and 197.4MB in the end (delta: -24.1MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2022-01-10 00:48:58,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.46ms. Allocated memory is still 223.3MB. Free memory was 197.4MB in the beginning and 195.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 00:48:58,644 INFO L158 Benchmark]: Boogie Preprocessor took 37.95ms. Allocated memory is still 223.3MB. Free memory was 195.3MB in the beginning and 193.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 00:48:58,644 INFO L158 Benchmark]: RCFGBuilder took 393.29ms. Allocated memory is still 223.3MB. Free memory was 193.2MB in the beginning and 177.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-10 00:48:58,644 INFO L158 Benchmark]: TraceAbstraction took 460.57ms. Allocated memory is still 223.3MB. Free memory was 177.0MB in the beginning and 149.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-01-10 00:48:58,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 223.3MB. Free memory was 189.8MB in the beginning and 189.7MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.32ms. Allocated memory is still 223.3MB. Free memory was 173.3MB in the beginning and 197.4MB in the end (delta: -24.1MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.46ms. Allocated memory is still 223.3MB. Free memory was 197.4MB in the beginning and 195.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.95ms. Allocated memory is still 223.3MB. Free memory was 195.3MB in the beginning and 193.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 393.29ms. Allocated memory is still 223.3MB. Free memory was 193.2MB in the beginning and 177.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 460.57ms. Allocated memory is still 223.3MB. Free memory was 177.0MB in the beginning and 149.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L128] float x = 0.0f; [L129] float y = __VERIFIER_nondet_float(); [L131] COND TRUE (y < 0.0f || y > 0.0f) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=0, \old(y)=4294967296, one_fmod=1, x=0, y=4294967296, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=4294967296, one_fmod=1, sx=-1, x=0, y=4294967296, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=4294967296, hx=2139095040, hy=0, one_fmod=1, sx=-1, x=0, y=4294967296, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_fmod=1, res=4294967297, res == 0.0f && __signbit_float(res) == 0=0, x=0, y=4294967296, Zero_fmod={4:0}] [L136] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L137] reach_error() VAL [one_fmod=1, res=4294967297, x=0, y=4294967296, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, 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, 65 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, 65 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=48occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 00:48:58,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...