./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/float-newlib/double_req_bl_0832.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 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:36:35,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:36:35,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:36:35,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:36:35,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:36:35,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:36:35,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:36:35,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:36:35,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:36:35,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:36:35,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:36:35,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:36:35,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:36:35,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:36:35,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:36:35,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:36:35,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:36:35,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:36:35,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:36:35,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:36:35,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:36:35,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:36:35,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:36:35,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:36:35,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:36:35,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:36:35,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:36:35,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:36:35,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:36:35,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:36:35,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:36:35,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:36:35,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:36:35,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:36:35,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:36:35,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:36:35,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:36:35,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:36:35,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:36:35,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:36:35,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:36:35,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 07:36:35,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:36:35,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:36:35,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:36:35,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:36:35,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:36:35,752 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:36:35,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:36:35,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:36:35,752 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:36:35,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:36:35,753 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:36:35,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 07:36:35,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:36:35,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:36:35,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:36:35,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:36:35,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:36:35,754 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:36:35,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:36:35,754 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:36:35,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:36:35,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:36:35,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:36:35,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:36:35,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:36:35,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:36:35,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:36:35,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:36:35,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 07:36:35,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 07:36:35,757 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:36:35,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:36:35,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:36:35,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:36:35,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f [2021-12-17 07:36:35,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:36:35,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:36:35,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:36:35,995 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:36:35,998 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:36:36,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-12-17 07:36:36,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d7f66c49/c18e5d5719d64681a41b8b1cbc324e2a/FLAG45a5c4eb9 [2021-12-17 07:36:36,431 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:36:36,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-12-17 07:36:36,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d7f66c49/c18e5d5719d64681a41b8b1cbc324e2a/FLAG45a5c4eb9 [2021-12-17 07:36:36,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d7f66c49/c18e5d5719d64681a41b8b1cbc324e2a [2021-12-17 07:36:36,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:36:36,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:36:36,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:36:36,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:36:36,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:36:36,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424828db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36, skipping insertion in model container [2021-12-17 07:36:36,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:36:36,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:36:36,710 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/float-newlib/double_req_bl_0832.c[3927,3940] [2021-12-17 07:36:36,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:36:36,718 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:36:36,738 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/float-newlib/double_req_bl_0832.c[3927,3940] [2021-12-17 07:36:36,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:36:36,749 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:36:36,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36 WrapperNode [2021-12-17 07:36:36,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:36:36,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:36:36,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:36:36,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:36:36,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,786 INFO L137 Inliner]: procedures = 17, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 179 [2021-12-17 07:36:36,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:36:36,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:36:36,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:36:36,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:36:36,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:36:36,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:36:36,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:36:36,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:36:36,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (1/1) ... [2021-12-17 07:36:36,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:36:36,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:36:36,865 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) [2021-12-17 07:36:36,867 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 [2021-12-17 07:36:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:36:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 07:36:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:36:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 07:36:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-17 07:36:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-17 07:36:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:36:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:36:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 07:36:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-17 07:36:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:36:36,978 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:36:36,980 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:36:37,146 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:36:37,151 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:36:37,151 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-12-17 07:36:37,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:36:37 BoogieIcfgContainer [2021-12-17 07:36:37,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:36:37,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:36:37,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:36:37,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:36:37,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:36:36" (1/3) ... [2021-12-17 07:36:37,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6000c673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:36:37, skipping insertion in model container [2021-12-17 07:36:37,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:36" (2/3) ... [2021-12-17 07:36:37,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6000c673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:36:37, skipping insertion in model container [2021-12-17 07:36:37,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:36:37" (3/3) ... [2021-12-17 07:36:37,159 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-12-17 07:36:37,162 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:36:37,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:36:37,194 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:36:37,199 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 07:36:37,199 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:36:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 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) [2021-12-17 07:36:37,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-17 07:36:37,213 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:36:37,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:36:37,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:36:37,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:36:37,222 INFO L85 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-12-17 07:36:37,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 07:36:37,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097852725] [2021-12-17 07:36:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:36:37,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 07:36:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:36:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:36:37,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 07:36:37,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097852725] [2021-12-17 07:36:37,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097852725] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:36:37,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:36:37,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:36:37,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094391415] [2021-12-17 07:36:37,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:36:37,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:36:37,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 07:36:37,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:36:37,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:36:37,432 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:36:37,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:36:37,443 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-12-17 07:36:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:36:37,444 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-17 07:36:37,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:36:37,449 INFO L225 Difference]: With dead ends: 79 [2021-12-17 07:36:37,449 INFO L226 Difference]: Without dead ends: 37 [2021-12-17 07:36:37,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:36:37,454 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:36:37,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:36:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-17 07:36:37,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-12-17 07:36:37,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 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) [2021-12-17 07:36:37,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-12-17 07:36:37,479 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-12-17 07:36:37,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:36:37,480 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-12-17 07:36:37,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:36:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-12-17 07:36:37,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 07:36:37,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:36:37,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:36:37,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 07:36:37,482 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:36:37,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:36:37,483 INFO L85 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-12-17 07:36:37,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 07:36:37,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896881835] [2021-12-17 07:36:37,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:36:37,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 07:36:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 07:36:37,524 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 07:36:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 07:36:37,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 07:36:37,569 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 07:36:37,571 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:36:37,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 07:36:37,574 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 07:36:37,579 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:36:37,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:36:37 BoogieIcfgContainer [2021-12-17 07:36:37,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:36:37,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:36:37,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:36:37,608 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:36:37,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:36:37" (3/4) ... [2021-12-17 07:36:37,610 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 07:36:37,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:36:37,611 INFO L158 Benchmark]: Toolchain (without parser) took 1162.83ms. Allocated memory was 104.9MB in the beginning and 153.1MB in the end (delta: 48.2MB). Free memory was 76.8MB in the beginning and 108.0MB in the end (delta: -31.2MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2021-12-17 07:36:37,613 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:36:37,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.66ms. Allocated memory is still 104.9MB. Free memory was 76.5MB in the beginning and 78.7MB in the end (delta: -2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:36:37,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.92ms. Allocated memory is still 104.9MB. Free memory was 78.7MB in the beginning and 76.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:36:37,615 INFO L158 Benchmark]: Boogie Preprocessor took 31.05ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:36:37,615 INFO L158 Benchmark]: RCFGBuilder took 330.62ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 60.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 07:36:37,616 INFO L158 Benchmark]: TraceAbstraction took 453.13ms. Allocated memory was 104.9MB in the beginning and 153.1MB in the end (delta: 48.2MB). Free memory was 60.2MB in the beginning and 108.7MB in the end (delta: -48.5MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-12-17 07:36:37,616 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 153.1MB. Free memory was 108.7MB in the beginning and 108.0MB in the end (delta: 673.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:36:37,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.66ms. Allocated memory is still 104.9MB. Free memory was 76.5MB in the beginning and 78.7MB in the end (delta: -2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.92ms. Allocated memory is still 104.9MB. Free memory was 78.7MB in the beginning and 76.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.05ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 330.62ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 60.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 453.13ms. Allocated memory was 104.9MB in the beginning and 153.1MB in the end (delta: 48.2MB). Free memory was 60.2MB in the beginning and 108.7MB in the end (delta: -48.5MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 153.1MB. Free memory was 108.7MB in the beginning and 108.0MB in the end (delta: 673.1kB). 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: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x == 0.0 || x == -0.0 [L143] CALL, EXPR __ieee754_exp(x) [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, xsb=-1] [L59] COND TRUE hx >= 0x40862E42 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, xsb=-1] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, xsb=-1] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, xsb=-1] [L143] RET, EXPR __ieee754_exp(x) [L143] double res = __ieee754_exp(x); [L146] COND TRUE res != 1.0 VAL [halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004] [L147] reach_error() VAL [halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 53 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-17 07:36:37,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- 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/float-newlib/double_req_bl_0832.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 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:36:39,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:36:39,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:36:39,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:36:39,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:36:39,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:36:39,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:36:39,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:36:39,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:36:39,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:36:39,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:36:39,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:36:39,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:36:39,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:36:39,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:36:39,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:36:39,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:36:39,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:36:39,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:36:39,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:36:39,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:36:39,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:36:39,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:36:39,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:36:39,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:36:39,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:36:39,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:36:39,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:36:39,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:36:39,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:36:39,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:36:39,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:36:39,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:36:39,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:36:39,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:36:39,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:36:39,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:36:39,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:36:39,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:36:39,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:36:39,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:36:39,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 07:36:39,682 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:36:39,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:36:39,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:36:39,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:36:39,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:36:39,684 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:36:39,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:36:39,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:36:39,685 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:36:39,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:36:39,686 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:36:39,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:36:39,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:36:39,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:36:39,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:36:39,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:36:39,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 07:36:39,687 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 07:36:39,687 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 07:36:39,687 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:36:39,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:36:39,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:36:39,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:36:39,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:36:39,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:36:39,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:36:39,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:36:39,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:36:39,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:36:39,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:36:39,689 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 07:36:39,689 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 07:36:39,689 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:36:39,689 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:36:39,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:36:39,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:36:39,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 07:36:39,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f [2021-12-17 07:36:39,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:36:39,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:36:39,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:36:39,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:36:39,983 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:36:39,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-12-17 07:36:40,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad9498d85/5088eca3f1df4100bf188682dd2e9b87/FLAG756392197 [2021-12-17 07:36:40,405 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:36:40,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-12-17 07:36:40,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad9498d85/5088eca3f1df4100bf188682dd2e9b87/FLAG756392197 [2021-12-17 07:36:40,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad9498d85/5088eca3f1df4100bf188682dd2e9b87 [2021-12-17 07:36:40,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:36:40,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:36:40,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:36:40,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:36:40,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:36:40,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc92ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40, skipping insertion in model container [2021-12-17 07:36:40,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:36:40,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:36:40,650 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/float-newlib/double_req_bl_0832.c[3927,3940] [2021-12-17 07:36:40,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:36:40,663 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:36:40,701 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/float-newlib/double_req_bl_0832.c[3927,3940] [2021-12-17 07:36:40,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:36:40,721 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:36:40,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40 WrapperNode [2021-12-17 07:36:40,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:36:40,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:36:40,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:36:40,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:36:40,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,769 INFO L137 Inliner]: procedures = 20, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 180 [2021-12-17 07:36:40,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:36:40,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:36:40,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:36:40,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:36:40,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:36:40,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:36:40,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:36:40,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:36:40,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (1/1) ... [2021-12-17 07:36:40,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:36:40,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:36:40,867 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) [2021-12-17 07:36:40,869 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 [2021-12-17 07:36:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:36:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-17 07:36:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-17 07:36:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 07:36:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:36:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-17 07:36:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 07:36:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:36:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:36:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 07:36:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:36:40,970 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:36:40,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:36:52,261 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:36:52,267 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:36:52,268 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-12-17 07:36:52,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:36:52 BoogieIcfgContainer [2021-12-17 07:36:52,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:36:52,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:36:52,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:36:52,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:36:52,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:36:40" (1/3) ... [2021-12-17 07:36:52,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237e56b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:36:52, skipping insertion in model container [2021-12-17 07:36:52,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:36:40" (2/3) ... [2021-12-17 07:36:52,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237e56b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:36:52, skipping insertion in model container [2021-12-17 07:36:52,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:36:52" (3/3) ... [2021-12-17 07:36:52,276 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-12-17 07:36:52,282 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:36:52,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:36:52,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:36:52,333 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 07:36:52,334 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:36:52,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 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) [2021-12-17 07:36:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-17 07:36:52,346 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:36:52,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:36:52,347 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:36:52,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:36:52,350 INFO L85 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-12-17 07:36:52,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:36:52,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061877213] [2021-12-17 07:36:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:36:52,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:36:52,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:36:52,362 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) [2021-12-17 07:36:52,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 07:36:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:36:52,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 07:36:52,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:36:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:36:52,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:36:52,821 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:36:52,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061877213] [2021-12-17 07:36:52,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061877213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:36:52,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:36:52,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:36:52,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754618627] [2021-12-17 07:36:52,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:36:52,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:36:52,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:36:52,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:36:52,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:36:52,843 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:36:52,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:36:52,853 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-12-17 07:36:52,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:36:52,855 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-17 07:36:52,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:36:52,860 INFO L225 Difference]: With dead ends: 79 [2021-12-17 07:36:52,860 INFO L226 Difference]: Without dead ends: 37 [2021-12-17 07:36:52,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:36:52,865 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:36:52,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:36:52,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-17 07:36:52,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-12-17 07:36:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 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) [2021-12-17 07:36:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-12-17 07:36:52,886 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-12-17 07:36:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:36:52,886 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-12-17 07:36:52,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:36:52,886 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-12-17 07:36:52,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 07:36:52,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:36:52,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:36:52,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-17 07:36:53,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:36:53,108 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:36:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:36:53,109 INFO L85 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-12-17 07:36:53,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:36:53,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004826215] [2021-12-17 07:36:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:36:53,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:36:53,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:36:53,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:36:53,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 07:36:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:36:53,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:36:53,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:36:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:36:54,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:36:54,227 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:36:54,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004826215] [2021-12-17 07:36:54,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004826215] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:36:54,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:36:54,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:36:54,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251079443] [2021-12-17 07:36:54,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:36:54,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:36:54,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:36:54,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:36:54,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:36:54,230 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-12-17 07:36:57,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:00,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:01,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:05,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:09,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:09,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:37:09,050 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2021-12-17 07:37:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:37:09,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2021-12-17 07:37:09,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:37:09,577 INFO L225 Difference]: With dead ends: 59 [2021-12-17 07:37:09,577 INFO L226 Difference]: Without dead ends: 29 [2021-12-17 07:37:09,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:37:09,578 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-12-17 07:37:09,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 99 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 4 Unknown, 17 Unchecked, 14.7s Time] [2021-12-17 07:37:09,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-17 07:37:09,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-12-17 07:37:09,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 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) [2021-12-17 07:37:09,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2021-12-17 07:37:09,582 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 12 [2021-12-17 07:37:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:37:09,583 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-12-17 07:37:09,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-12-17 07:37:09,583 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2021-12-17 07:37:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-17 07:37:09,595 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:37:09,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:37:09,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-17 07:37:09,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:37:09,803 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:37:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:37:09,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2021-12-17 07:37:09,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:37:09,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432852016] [2021-12-17 07:37:09,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:37:09,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:37:09,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:37:09,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:37:09,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 07:37:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:37:10,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-17 07:37:10,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:37:15,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:37:15,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:37:15,021 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:37:15,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432852016] [2021-12-17 07:37:15,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432852016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:37:15,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:37:15,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 07:37:15,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223219082] [2021-12-17 07:37:15,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:37:15,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 07:37:15,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:37:15,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 07:37:15,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-17 07:37:15,023 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-17 07:37:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:37:15,450 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2021-12-17 07:37:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 07:37:15,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2021-12-17 07:37:15,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:37:15,463 INFO L225 Difference]: With dead ends: 33 [2021-12-17 07:37:15,463 INFO L226 Difference]: Without dead ends: 29 [2021-12-17 07:37:15,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-17 07:37:15,464 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 07:37:15,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 96 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 48 Unchecked, 0.4s Time] [2021-12-17 07:37:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-17 07:37:15,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-12-17 07:37:15,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 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) [2021-12-17 07:37:15,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-12-17 07:37:15,467 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 13 [2021-12-17 07:37:15,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:37:15,467 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-12-17 07:37:15,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-17 07:37:15,467 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-12-17 07:37:15,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-17 07:37:15,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:37:15,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:37:15,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-17 07:37:15,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:37:15,668 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:37:15,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:37:15,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1410609355, now seen corresponding path program 1 times [2021-12-17 07:37:15,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:37:15,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044421312] [2021-12-17 07:37:15,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:37:15,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:37:15,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:37:15,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:37:15,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-17 07:37:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:37:18,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:37:18,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:37:19,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:37:19,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:37:19,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:37:19,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044421312] [2021-12-17 07:37:19,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044421312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:37:19,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:37:19,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:37:19,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443299026] [2021-12-17 07:37:19,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:37:19,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:37:19,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:37:19,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:37:19,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:37:19,095 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-17 07:37:21,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:25,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:29,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:32,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:32,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:37:32,811 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2021-12-17 07:37:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:37:33,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2021-12-17 07:37:33,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:37:33,301 INFO L225 Difference]: With dead ends: 46 [2021-12-17 07:37:33,301 INFO L226 Difference]: Without dead ends: 29 [2021-12-17 07:37:33,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:37:33,302 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-12-17 07:37:33,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 88 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 4 Unknown, 12 Unchecked, 13.5s Time] [2021-12-17 07:37:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-17 07:37:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-12-17 07:37:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 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) [2021-12-17 07:37:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-12-17 07:37:33,305 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 14 [2021-12-17 07:37:33,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:37:33,305 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-12-17 07:37:33,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-17 07:37:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-12-17 07:37:33,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-17 07:37:33,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:37:33,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:37:33,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-17 07:37:33,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:37:33,513 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:37:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:37:33,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1005077411, now seen corresponding path program 1 times [2021-12-17 07:37:33,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:37:33,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612529467] [2021-12-17 07:37:33,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:37:33,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:37:33,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:37:33,515 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:37:33,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-17 07:37:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:37:36,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:37:36,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:37:37,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:37:37,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:37:37,331 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:37:37,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612529467] [2021-12-17 07:37:37,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612529467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:37:37,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:37:37,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:37:37,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293437506] [2021-12-17 07:37:37,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:37:37,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:37:37,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:37:37,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:37:37,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:37:37,332 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-17 07:37:40,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:44,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:48,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:37:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:37:48,011 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2021-12-17 07:37:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:37:48,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-12-17 07:37:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:37:48,512 INFO L225 Difference]: With dead ends: 46 [2021-12-17 07:37:48,512 INFO L226 Difference]: Without dead ends: 27 [2021-12-17 07:37:48,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:37:48,513 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-12-17 07:37:48,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 64 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 3 Unknown, 6 Unchecked, 10.5s Time] [2021-12-17 07:37:48,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-17 07:37:48,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-12-17 07:37:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 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) [2021-12-17 07:37:48,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-12-17 07:37:48,515 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 15 [2021-12-17 07:37:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:37:48,515 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-17 07:37:48,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-17 07:37:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-12-17 07:37:48,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-17 07:37:48,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:37:48,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:37:48,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-17 07:37:48,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:37:48,732 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:37:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:37:48,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2021-12-17 07:37:48,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:37:48,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000290517] [2021-12-17 07:37:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:37:48,733 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:37:48,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:37:48,735 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:37:48,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-17 07:37:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:37:51,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-17 07:37:51,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:37:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:37:54,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:37:54,344 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:37:54,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000290517] [2021-12-17 07:37:54,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000290517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:37:54,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:37:54,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:37:54,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345237917] [2021-12-17 07:37:54,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:37:54,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:37:54,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:37:54,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:37:54,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:37:54,345 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-17 07:37:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:37:54,402 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-12-17 07:37:54,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:37:54,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-12-17 07:37:54,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:37:54,404 INFO L225 Difference]: With dead ends: 27 [2021-12-17 07:37:54,404 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 07:37:54,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:37:54,405 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 07:37:54,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 8 Unchecked, 0.1s Time] [2021-12-17 07:37:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 07:37:54,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 07:37:54,405 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) [2021-12-17 07:37:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 07:37:54,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-12-17 07:37:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:37:54,406 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 07:37:54,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-17 07:37:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 07:37:54,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 07:37:54,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:37:54,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-17 07:37:54,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:37:54,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 07:37:55,136 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 71) no Hoare annotation was computed. [2021-12-17 07:37:55,136 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L854 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 130) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L861 garLoopResultBuilder]: At program point L152(lines 133 153) the Hoare annotation is: true [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point L70-2(line 70) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 88) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L858 garLoopResultBuilder]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2021-12-17 07:37:55,137 INFO L854 garLoopResultBuilder]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2021-12-17 07:37:55,137 INFO L854 garLoopResultBuilder]: At program point L129(lines 46 131) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start___ieee754_exp_~x#1| (_ FloatingPoint 11 53))) (and (fp.eq |ULTIMATE.start___ieee754_exp_~x#1| (_ +zero 11 53)) (= |ULTIMATE.start___ieee754_exp_#res#1| (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) |ULTIMATE.start___ieee754_exp_~x#1|))))) [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 149) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 128) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 93) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L74(lines 74 75) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 150) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L141-2(lines 141 150) no Hoare annotation was computed. [2021-12-17 07:37:55,138 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 76) no Hoare annotation was computed. [2021-12-17 07:37:55,141 INFO L858 garLoopResultBuilder]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2021-12-17 07:37:55,141 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-12-17 07:37:55,141 INFO L854 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ~huge_exp~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (fp.eq |ULTIMATE.start___ieee754_exp_~x#1| (_ +zero 11 53)) (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0))) [2021-12-17 07:37:55,141 INFO L858 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-12-17 07:37:55,141 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-12-17 07:37:55,141 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2021-12-17 07:37:55,141 INFO L858 garLoopResultBuilder]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2021-12-17 07:37:55,143 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-17 07:37:55,144 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:37:55,150 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:37:55,153 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:37:55,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:37:55,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] [2021-12-17 07:37:55,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] [2021-12-17 07:37:55,155 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:37:55,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] [2021-12-17 07:37:55,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] [2021-12-17 07:37:55,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:37:55 BoogieIcfgContainer [2021-12-17 07:37:55,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:37:55,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:37:55,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:37:55,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:37:55,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:36:52" (3/4) ... [2021-12-17 07:37:55,158 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 07:37:55,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-12-17 07:37:55,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-17 07:37:55,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 07:37:55,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:37:55,186 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_exp_~x#1 : C_DOUBLE :: ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x#1, ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x#1)) [2021-12-17 07:37:55,220 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 07:37:55,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:37:55,221 INFO L158 Benchmark]: Toolchain (without parser) took 74793.62ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.2MB in the beginning and 47.1MB in the end (delta: -9.9MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2021-12-17 07:37:55,221 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 50.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:37:55,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.61ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 38.4MB in the end (delta: -1.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 07:37:55,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.01ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 36.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:37:55,222 INFO L158 Benchmark]: Boogie Preprocessor took 58.19ms. Allocated memory is still 58.7MB. Free memory was 36.1MB in the beginning and 34.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:37:55,223 INFO L158 Benchmark]: RCFGBuilder took 11441.16ms. Allocated memory is still 58.7MB. Free memory was 34.0MB in the beginning and 31.4MB in the end (delta: 2.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2021-12-17 07:37:55,223 INFO L158 Benchmark]: TraceAbstraction took 62883.82ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 31.0MB in the beginning and 30.6MB in the end (delta: 376.6kB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-12-17 07:37:55,224 INFO L158 Benchmark]: Witness Printer took 64.39ms. Allocated memory is still 71.3MB. Free memory was 30.1MB in the beginning and 47.1MB in the end (delta: -16.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:37:55,225 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 58.7MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 50.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.61ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 38.4MB in the end (delta: -1.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.01ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 36.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.19ms. Allocated memory is still 58.7MB. Free memory was 36.1MB in the beginning and 34.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11441.16ms. Allocated memory is still 58.7MB. Free memory was 34.0MB in the beginning and 31.4MB in the end (delta: 2.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 62883.82ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 31.0MB in the beginning and 30.6MB in the end (delta: 376.6kB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 64.39ms. Allocated memory is still 71.3MB. Free memory was 30.1MB in the beginning and 47.1MB in the end (delta: -16.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] * 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: 147]: 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, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 41.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 39.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 407 SdHoareTripleChecker+Invalid, 36.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 91 IncrementalHoareTripleChecker+Unchecked, 242 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 165 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 38 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 7.5s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 74 ConstructedInterpolants, 22 QuantifiedInterpolants, 651 SizeOfPredicates, 32 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - InvariantResult [Line: 51]: Loop Invariant [2021-12-17 07:37:55,238 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:37:55,238 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) - InvariantResult [Line: 46]: Loop Invariant [2021-12-17 07:37:55,239 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:37:55,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] [2021-12-17 07:37:55,240 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] [2021-12-17 07:37:55,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:37:55,240 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] [2021-12-17 07:37:55,240 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x#1,QUANTIFIED] Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_exp_~x#1 : C_DOUBLE :: ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x#1, ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x#1)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-17 07:37:55,444 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-17 07:37:55,521 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 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE