/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:53:12,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:53:12,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:53:12,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:53:12,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:53:12,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:53:12,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:53:12,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:53:12,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:53:12,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:53:12,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:53:12,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:53:12,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:53:12,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:53:12,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:53:12,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:53:12,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:53:12,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:53:12,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:53:12,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:53:12,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:53:12,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:53:12,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:53:12,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:53:12,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:53:12,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:53:12,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:53:12,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:53:12,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:53:12,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:53:12,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:53:12,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:53:12,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:53:12,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:53:12,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:53:12,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:53:12,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:53:12,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:53:12,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:53:12,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:53:12,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:53:12,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:53:12,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:53:12,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:53:12,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:53:12,755 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:53:12,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:53:12,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:53:12,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:53:12,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:53:12,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:53:12,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:53:12,756 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:53:12,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:53:12,757 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:53:12,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:53:12,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:53:12,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:53:12,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:53:12,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:53:12,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:53:12,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:53:12,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:53:12,758 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:53:12,758 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:53:12,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:53:13,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:53:13,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:53:13,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:53:13,026 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:53:13,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211b.c [2022-01-31 16:53:13,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c413500/8701a31319d647b8a9dfb1401d491e27/FLAG9caf20a6b [2022-01-31 16:53:13,448 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:53:13,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211b.c [2022-01-31 16:53:13,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c413500/8701a31319d647b8a9dfb1401d491e27/FLAG9caf20a6b [2022-01-31 16:53:13,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c413500/8701a31319d647b8a9dfb1401d491e27 [2022-01-31 16:53:13,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:53:13,474 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:53:13,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:53:13,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:53:13,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:53:13,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48cfc1c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13, skipping insertion in model container [2022-01-31 16:53:13,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:53:13,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:53:13,642 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_1211b.c[2579,2592] [2022-01-31 16:53:13,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:53:13,652 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:53:13,697 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_1211b.c[2579,2592] [2022-01-31 16:53:13,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:53:13,709 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:53:13,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13 WrapperNode [2022-01-31 16:53:13,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:53:13,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:53:13,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:53:13,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:53:13,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:53:13,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:53:13,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:53:13,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:53:13,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (1/1) ... [2022-01-31 16:53:13,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:53:13,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:53:13,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 16:53:13,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 16:53:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:53:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:53:13,832 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:53:13,832 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2022-01-31 16:53:13,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2022-01-31 16:53:13,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2022-01-31 16:53:13,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:53:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:53:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:53:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:53:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:53:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 16:53:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2022-01-31 16:53:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:53:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:53:13,909 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:53:13,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:53:14,210 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:53:14,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:53:14,214 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-01-31 16:53:14,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:53:14 BoogieIcfgContainer [2022-01-31 16:53:14,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:53:14,216 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:53:14,217 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:53:14,232 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:53:14,234 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:53:14" (1/1) ... [2022-01-31 16:53:14,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:53:14 BasicIcfg [2022-01-31 16:53:14,278 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:53:14,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:53:14,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:53:14,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:53:14,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:53:13" (1/4) ... [2022-01-31 16:53:14,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4700e169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:53:14, skipping insertion in model container [2022-01-31 16:53:14,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:13" (2/4) ... [2022-01-31 16:53:14,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4700e169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:53:14, skipping insertion in model container [2022-01-31 16:53:14,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:53:14" (3/4) ... [2022-01-31 16:53:14,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4700e169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:53:14, skipping insertion in model container [2022-01-31 16:53:14,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:53:14" (4/4) ... [2022-01-31 16:53:14,284 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b.cJordan [2022-01-31 16:53:14,287 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:53:14,288 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:53:14,330 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:53:14,336 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 16:53:14,336 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:53:14,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 16:53:14,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-31 16:53:14,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:53:14,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:53:14,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:53:14,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:53:14,369 INFO L85 PathProgramCache]: Analyzing trace with hash 437754177, now seen corresponding path program 1 times [2022-01-31 16:53:14,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:53:14,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923569295] [2022-01-31 16:53:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:53:14,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:53:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:14,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:53:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 16:53:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-31 16:53:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:53:14,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:53:14,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923569295] [2022-01-31 16:53:14,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923569295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:53:14,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:53:14,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:53:14,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560748269] [2022-01-31 16:53:14,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:53:14,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:53:14,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:53:14,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:53:14,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:53:14,632 INFO L87 Difference]: Start difference. First operand has 59 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 16:53:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:53:14,777 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2022-01-31 16:53:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:53:14,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2022-01-31 16:53:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:53:14,788 INFO L225 Difference]: With dead ends: 59 [2022-01-31 16:53:14,789 INFO L226 Difference]: Without dead ends: 55 [2022-01-31 16:53:14,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:53:14,793 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 50 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:53:14,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 57 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:53:14,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-01-31 16:53:14,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-01-31 16:53:14,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.1111111111111112) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 16:53:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2022-01-31 16:53:14,820 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 27 [2022-01-31 16:53:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:53:14,820 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2022-01-31 16:53:14,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 16:53:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2022-01-31 16:53:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 16:53:14,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:53:14,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:53:14,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:53:14,821 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:53:14,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:53:14,822 INFO L85 PathProgramCache]: Analyzing trace with hash 765938746, now seen corresponding path program 1 times [2022-01-31 16:53:14,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:53:14,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908225743] [2022-01-31 16:53:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:53:14,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:53:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:14,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:53:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 16:53:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-01-31 16:53:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:14,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:53:14,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:53:14,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908225743] [2022-01-31 16:53:14,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908225743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:53:14,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:53:14,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:53:14,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87925325] [2022-01-31 16:53:14,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:53:14,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:53:14,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:53:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:53:14,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:53:14,913 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-31 16:53:15,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:53:15,021 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-01-31 16:53:15,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:53:15,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-01-31 16:53:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:53:15,022 INFO L225 Difference]: With dead ends: 56 [2022-01-31 16:53:15,022 INFO L226 Difference]: Without dead ends: 55 [2022-01-31 16:53:15,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:53:15,023 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 48 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:53:15,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 53 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:53:15,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-01-31 16:53:15,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-01-31 16:53:15,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 45 states have internal predecessors, (49), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 16:53:15,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2022-01-31 16:53:15,028 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 30 [2022-01-31 16:53:15,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:53:15,028 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2022-01-31 16:53:15,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-31 16:53:15,028 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2022-01-31 16:53:15,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-31 16:53:15,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:53:15,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:53:15,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:53:15,029 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:53:15,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:53:15,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1626779428, now seen corresponding path program 1 times [2022-01-31 16:53:15,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:53:15,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258706645] [2022-01-31 16:53:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:53:15,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:53:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:53:15,100 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 16:53:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:53:15,157 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 16:53:15,157 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 16:53:15,158 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:53:15,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:53:15,163 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 16:53:15,164 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:53:15,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:53:15 BasicIcfg [2022-01-31 16:53:15,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:53:15,191 INFO L158 Benchmark]: Toolchain (without parser) took 1716.69ms. Allocated memory was 180.4MB in the beginning and 232.8MB in the end (delta: 52.4MB). Free memory was 123.3MB in the beginning and 122.7MB in the end (delta: 655.4kB). Peak memory consumption was 53.4MB. Max. memory is 8.0GB. [2022-01-31 16:53:15,191 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 180.4MB. Free memory was 140.1MB in the beginning and 140.0MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:53:15,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.21ms. Allocated memory was 180.4MB in the beginning and 232.8MB in the end (delta: 52.4MB). Free memory was 123.1MB in the beginning and 205.4MB in the end (delta: -82.3MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-01-31 16:53:15,192 INFO L158 Benchmark]: Boogie Preprocessor took 39.11ms. Allocated memory is still 232.8MB. Free memory was 205.4MB in the beginning and 203.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:53:15,192 INFO L158 Benchmark]: RCFGBuilder took 465.09ms. Allocated memory is still 232.8MB. Free memory was 203.4MB in the beginning and 186.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-01-31 16:53:15,193 INFO L158 Benchmark]: IcfgTransformer took 61.72ms. Allocated memory is still 232.8MB. Free memory was 186.1MB in the beginning and 184.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:53:15,193 INFO L158 Benchmark]: TraceAbstraction took 911.08ms. Allocated memory is still 232.8MB. Free memory was 184.0MB in the beginning and 122.7MB in the end (delta: 61.4MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2022-01-31 16:53:15,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 180.4MB. Free memory was 140.1MB in the beginning and 140.0MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.21ms. Allocated memory was 180.4MB in the beginning and 232.8MB in the end (delta: 52.4MB). Free memory was 123.1MB in the beginning and 205.4MB in the end (delta: -82.3MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.11ms. Allocated memory is still 232.8MB. Free memory was 205.4MB in the beginning and 203.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 465.09ms. Allocated memory is still 232.8MB. Free memory was 203.4MB in the beginning and 186.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * IcfgTransformer took 61.72ms. Allocated memory is still 232.8MB. Free memory was 186.1MB in the beginning and 184.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 911.08ms. Allocated memory is still 232.8MB. Free memory was 184.0MB in the beginning and 122.7MB in the end (delta: 61.4MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 112]: 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 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106, overapproximation of bitwiseAnd at line 95. Possible FailurePath: [L14] static const float one_modf = 1.0; VAL [\old(one_modf)=4294967307, one_modf=1] [L106] float x = -1.0f / 0.0f; [L107] float iptr = __VERIFIER_nondet_float(); [L108] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=4294967310, iptr={6:0}, one_modf=1] [L17] __int32_t i0, j0; [L18] __uint32_t i; VAL [\old(x)=4294967310, iptr={6:0}, iptr={6:0}, one_modf=1, x=4294967310] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=4294967310, i0=-1, iptr={6:0}, iptr={6:0}, one_modf=1, x=4294967310] [L25] COND TRUE j0 < 23 VAL [\old(x)=4294967310, i0=-1, iptr={6:0}, iptr={6:0}, j0=-1, one_modf=1, x=4294967310] [L26] COND TRUE j0 < 0 VAL [\old(x)=4294967310, i0=-1, iptr={6:0}, iptr={6:0}, j0=-1, one_modf=1, x=4294967310] [L28] ieee_float_shape_type sf_u; [L29] sf_u.word = (i0 & 0x80000000) [L30] EXPR sf_u.value [L30] (*iptr) = sf_u.value [L32] return x; VAL [\old(x)=4294967310, \result=4294967310, i0=-1, iptr={6:0}, iptr={6:0}, j0=-1, one_modf=1, x=4294967310] [L108] RET, EXPR modf_float(x, &iptr) VAL [iptr={6:0}, modf_float(x, &iptr)=4294967310, one_modf=1, x=4294967310] [L108] float res = modf_float(x, &iptr); [L111] EXPR \read(iptr) VAL [\read(iptr)=4294967313, iptr={6:0}, one_modf=1, res=4294967310, x=4294967310] [L111] CALL, EXPR isinf_float(iptr) VAL [\old(x)=4294967313, one_modf=1] [L89] __int32_t ix; VAL [\old(x)=4294967313, one_modf=1, x=4294967313] [L91] ieee_float_shape_type gf_u; [L92] gf_u.value = (x) [L93] EXPR gf_u.word [L93] (ix) = gf_u.word [L95] ix &= 0x7fffffff [L96] return ((ix) == 0x7f800000L); VAL [\old(x)=4294967313, \result=1, ix=2139095040, one_modf=1, x=4294967313] [L111] RET, EXPR isinf_float(iptr) VAL [\read(iptr)=4294967313, iptr={6:0}, isinf_float(iptr)=1, one_modf=1, res=4294967310, x=4294967310] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L111] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [\read(iptr)=4294967313, iptr={6:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=4294967310, res == -0.0f && __signbit_float(res) == 1=0, x=4294967310] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=4294967313, iptr={6:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=4294967310, res == -0.0f && __signbit_float(res) == 1=0, x=4294967310] [L111] COND TRUE isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L112] reach_error() VAL [iptr={6:0}, one_modf=1, res=4294967310, x=4294967310] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, 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, 104 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 106 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 16:53:15,224 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...