./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:22:08,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:22:08,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:22:08,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:22:08,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:22:08,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:22:08,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:22:08,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:22:08,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:22:08,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:22:08,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:22:08,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:22:08,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:22:08,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:22:08,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:22:08,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:22:08,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:22:08,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:22:08,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:22:08,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:22:08,692 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:22:08,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:22:08,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:22:08,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:22:08,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:22:08,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:22:08,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:22:08,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:22:08,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:22:08,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:22:08,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:22:08,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:22:08,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:22:08,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:22:08,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:22:08,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:22:08,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:22:08,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:22:08,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:22:08,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:22:08,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:22:08,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:22:08,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:22:08,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:22:08,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:22:08,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:22:08,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:22:08,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:22:08,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:22:08,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:22:08,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:22:08,748 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:22:08,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:22:08,749 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:22:08,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:22:08,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:22:08,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:22:08,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:22:08,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:22:08,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:22:08,750 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:22:08,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:22:08,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:22:08,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:22:08,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:22:08,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:22:08,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:22:08,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:22:08,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:22:08,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:22:08,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:22:08,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:22:08,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:22:08,753 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:22:08,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:22:08,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:22:08,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2022-07-12 02:22:08,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:22:09,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:22:09,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:22:09,006 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:22:09,007 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:22:09,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-07-12 02:22:09,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/548613e66/8bc3c3a0fbbe4e7e864a929cad860f7b/FLAGfe898ad17 [2022-07-12 02:22:09,442 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:22:09,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-07-12 02:22:09,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/548613e66/8bc3c3a0fbbe4e7e864a929cad860f7b/FLAGfe898ad17 [2022-07-12 02:22:09,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/548613e66/8bc3c3a0fbbe4e7e864a929cad860f7b [2022-07-12 02:22:09,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:22:09,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:22:09,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:22:09,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:22:09,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:22:09,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40734f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09, skipping insertion in model container [2022-07-12 02:22:09,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:22:09,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:22:09,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-07-12 02:22:09,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:22:09,607 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:22:09,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-07-12 02:22:09,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:22:09,627 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:22:09,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09 WrapperNode [2022-07-12 02:22:09,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:22:09,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:22:09,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:22:09,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:22:09,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,651 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-07-12 02:22:09,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:22:09,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:22:09,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:22:09,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:22:09,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:22:09,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:22:09,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:22:09,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:22:09,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (1/1) ... [2022-07-12 02:22:09,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:22:09,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:22:09,690 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) [2022-07-12 02:22:09,691 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 [2022-07-12 02:22:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:22:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:22:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:22:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:22:09,755 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:22:09,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:22:09,803 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:22:09,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:22:09,807 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:22:09,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:09 BoogieIcfgContainer [2022-07-12 02:22:09,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:22:09,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:22:09,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:22:09,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:22:09,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:22:09" (1/3) ... [2022-07-12 02:22:09,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5504bf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:22:09, skipping insertion in model container [2022-07-12 02:22:09,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:09" (2/3) ... [2022-07-12 02:22:09,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5504bf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:22:09, skipping insertion in model container [2022-07-12 02:22:09,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:09" (3/3) ... [2022-07-12 02:22:09,815 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2022-07-12 02:22:09,826 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:22:09,827 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:22:09,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:22:09,863 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62659afc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@54ee48e [2022-07-12 02:22:09,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:22:09,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-07-12 02:22:09,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-12 02:22:09,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:22:09,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-12 02:22:09,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:22:09,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:22:09,879 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-12 02:22:09,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:22:09,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139092453] [2022-07-12 02:22:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:22:09,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:22:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:22:09,949 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:22:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:22:09,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:22:09,983 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:22:09,984 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:22:09,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:22:09,991 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 02:22:09,995 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:22:10,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:22:10 BoogieIcfgContainer [2022-07-12 02:22:10,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:22:10,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:22:10,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:22:10,012 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:22:10,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:09" (3/4) ... [2022-07-12 02:22:10,015 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:22:10,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:22:10,016 INFO L158 Benchmark]: Toolchain (without parser) took 556.99ms. Allocated memory is still 88.1MB. Free memory was 53.2MB in the beginning and 40.9MB in the end (delta: 12.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-07-12 02:22:10,018 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:10,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.87ms. Allocated memory is still 88.1MB. Free memory was 53.0MB in the beginning and 64.3MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:22:10,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.97ms. Allocated memory is still 88.1MB. Free memory was 64.3MB in the beginning and 63.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:22:10,021 INFO L158 Benchmark]: Boogie Preprocessor took 9.84ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 62.2MB in the end (delta: 823.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:10,025 INFO L158 Benchmark]: RCFGBuilder took 145.96ms. Allocated memory is still 88.1MB. Free memory was 62.2MB in the beginning and 54.2MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:22:10,025 INFO L158 Benchmark]: TraceAbstraction took 199.43ms. Allocated memory is still 88.1MB. Free memory was 53.5MB in the beginning and 41.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-12 02:22:10,027 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 88.1MB. Free memory was 41.3MB in the beginning and 40.9MB in the end (delta: 396.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:10,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.87ms. Allocated memory is still 88.1MB. Free memory was 53.0MB in the beginning and 64.3MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.97ms. Allocated memory is still 88.1MB. Free memory was 64.3MB in the beginning and 63.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 9.84ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 62.2MB in the end (delta: 823.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 145.96ms. Allocated memory is still 88.1MB. Free memory was 62.2MB in the beginning and 54.2MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 199.43ms. Allocated memory is still 88.1MB. Free memory was 53.5MB in the beginning and 41.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 88.1MB. Free memory was 41.3MB in the beginning and 40.9MB in the end (delta: 396.3kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-07-12 02:22:10,079 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:22:11,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:22:11,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:22:11,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:22:11,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:22:11,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:22:11,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:22:11,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:22:11,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:22:12,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:22:12,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:22:12,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:22:12,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:22:12,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:22:12,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:22:12,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:22:12,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:22:12,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:22:12,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:22:12,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:22:12,012 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:22:12,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:22:12,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:22:12,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:22:12,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:22:12,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:22:12,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:22:12,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:22:12,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:22:12,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:22:12,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:22:12,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:22:12,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:22:12,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:22:12,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:22:12,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:22:12,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:22:12,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:22:12,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:22:12,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:22:12,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:22:12,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:22:12,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:22:12,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:22:12,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:22:12,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:22:12,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:22:12,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:22:12,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:22:12,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:22:12,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:22:12,066 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:22:12,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:22:12,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:22:12,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:22:12,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:22:12,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:22:12,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:22:12,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:22:12,068 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:22:12,068 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:22:12,068 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:22:12,068 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:22:12,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:22:12,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:22:12,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:22:12,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:22:12,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:22:12,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:22:12,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:22:12,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:22:12,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:22:12,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:22:12,069 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:22:12,069 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:22:12,069 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:22:12,070 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:22:12,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:22:12,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:22:12,070 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2022-07-12 02:22:12,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:22:12,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:22:12,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:22:12,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:22:12,410 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:22:12,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-07-12 02:22:12,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04b72d2ee/e470a9ef3766443b954d5949de1e4a39/FLAGbebcdc5ba [2022-07-12 02:22:12,839 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:22:12,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-07-12 02:22:12,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04b72d2ee/e470a9ef3766443b954d5949de1e4a39/FLAGbebcdc5ba [2022-07-12 02:22:13,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04b72d2ee/e470a9ef3766443b954d5949de1e4a39 [2022-07-12 02:22:13,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:22:13,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:22:13,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:22:13,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:22:13,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:22:13,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3e7439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13, skipping insertion in model container [2022-07-12 02:22:13,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:22:13,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:22:13,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-07-12 02:22:13,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:22:13,429 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:22:13,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-07-12 02:22:13,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:22:13,477 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:22:13,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13 WrapperNode [2022-07-12 02:22:13,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:22:13,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:22:13,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:22:13,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:22:13,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,537 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-07-12 02:22:13,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:22:13,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:22:13,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:22:13,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:22:13,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:22:13,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:22:13,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:22:13,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:22:13,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (1/1) ... [2022-07-12 02:22:13,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:22:13,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:22:13,609 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) [2022-07-12 02:22:13,634 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 [2022-07-12 02:22:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:22:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:22:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:22:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:22:13,713 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:22:13,714 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:22:13,854 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:22:13,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:22:13,859 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:22:13,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:13 BoogieIcfgContainer [2022-07-12 02:22:13,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:22:13,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:22:13,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:22:13,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:22:13,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:22:13" (1/3) ... [2022-07-12 02:22:13,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc6912c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:22:13, skipping insertion in model container [2022-07-12 02:22:13,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:13" (2/3) ... [2022-07-12 02:22:13,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc6912c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:22:13, skipping insertion in model container [2022-07-12 02:22:13,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:13" (3/3) ... [2022-07-12 02:22:13,870 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2022-07-12 02:22:13,882 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:22:13,882 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:22:13,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:22:13,923 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4d2c984, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1977dac3 [2022-07-12 02:22:13,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:22:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-07-12 02:22:13,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-12 02:22:13,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:22:13,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-12 02:22:13,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:22:13,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:22:13,936 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-12 02:22:13,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:22:13,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580699195] [2022-07-12 02:22:13,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:22:13,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:22:13,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:22:13,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 02:22:13,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:22:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:22:14,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 02:22:14,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:22:14,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:22:14,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:22:14,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:22:14,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580699195] [2022-07-12 02:22:14,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580699195] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:22:14,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:22:14,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 02:22:14,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905664023] [2022-07-12 02:22:14,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:22:14,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 02:22:14,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:22:14,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 02:22:14,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:22:14,193 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-12 02:22:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:22:14,265 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-07-12 02:22:14,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 02:22:14,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-07-12 02:22:14,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:22:14,273 INFO L225 Difference]: With dead ends: 11 [2022-07-12 02:22:14,273 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 02:22:14,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 02:22:14,280 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:22:14,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:22:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 02:22:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 02:22:14,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-12 02:22:14,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 02:22:14,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-07-12 02:22:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:22:14,301 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 02:22:14,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-12 02:22:14,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 02:22:14,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 02:22:14,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:22:14,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 02:22:14,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:22:14,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 02:22:14,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 02:22:14,522 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 02:22:14,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 02:22:14,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 02:22:14,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2022-07-12 02:22:14,522 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-07-12 02:22:14,523 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-07-12 02:22:14,523 INFO L899 garLoopResultBuilder]: For program point L5(lines 5 11) no Hoare annotation was computed. [2022-07-12 02:22:14,525 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 02:22:14,527 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:22:14,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:22:14 BoogieIcfgContainer [2022-07-12 02:22:14,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:22:14,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:22:14,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:22:14,532 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:22:14,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:13" (3/4) ... [2022-07-12 02:22:14,536 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 02:22:14,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-12 02:22:14,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 02:22:14,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 02:22:14,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 02:22:14,562 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 02:22:14,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:22:14,563 INFO L158 Benchmark]: Toolchain (without parser) took 1296.33ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.4MB in the beginning and 35.6MB in the end (delta: -5.3MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-07-12 02:22:14,566 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:14,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.84ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.2MB in the beginning and 51.7MB in the end (delta: -21.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-07-12 02:22:14,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.20ms. Allocated memory is still 67.1MB. Free memory was 51.5MB in the beginning and 50.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:22:14,569 INFO L158 Benchmark]: Boogie Preprocessor took 39.28ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 49.1MB in the end (delta: 993.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:14,571 INFO L158 Benchmark]: RCFGBuilder took 282.05ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 41.5MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:22:14,573 INFO L158 Benchmark]: TraceAbstraction took 668.06ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 38.0MB in the end (delta: 3.0MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-07-12 02:22:14,574 INFO L158 Benchmark]: Witness Printer took 31.40ms. Allocated memory is still 67.1MB. Free memory was 38.0MB in the beginning and 35.6MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 02:22:14,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.84ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.2MB in the beginning and 51.7MB in the end (delta: -21.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.20ms. Allocated memory is still 67.1MB. Free memory was 51.5MB in the beginning and 50.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.28ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 49.1MB in the end (delta: 993.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.05ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 41.5MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 668.06ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 38.0MB in the end (delta: 3.0MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Witness Printer took 31.40ms. Allocated memory is still 67.1MB. Free memory was 38.0MB in the beginning and 35.6MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 3 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-12 02:22:14,616 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE