./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/zonotope_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-benchs/zonotope_loose.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 aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:25:27,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:25:27,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:25:27,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:25:27,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:25:27,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:25:27,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:25:27,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:25:27,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:25:27,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:25:27,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:25:27,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:25:27,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:25:27,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:25:27,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:25:27,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:25:27,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:25:27,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:25:27,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:25:27,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:25:27,831 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:25:27,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:25:27,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:25:27,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:25:27,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:25:27,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:25:27,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:25:27,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:25:27,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:25:27,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:25:27,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:25:27,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:25:27,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:25:27,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:25:27,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:25:27,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:25:27,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:25:27,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:25:27,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:25:27,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:25:27,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:25:27,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:25:27,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:25:27,864 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:25:27,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:25:27,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:25:27,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:25:27,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:25:27,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:25:27,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:25:27,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:25:27,867 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:25:27,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:25:27,867 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:25:27,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:25:27,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:25:27,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:25:27,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:25:27,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:25:27,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:25:27,869 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:25:27,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:25:27,869 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:25:27,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:25:27,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:25:27,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:25:27,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:25:27,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:25:27,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:25:27,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:25:27,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:25:27,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:25:27,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:25:27,874 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:25:27,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:25:27,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:25:27,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2022-07-13 14:25:28,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:25:28,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:25:28,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:25:28,109 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:25:28,109 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:25:28,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-07-13 14:25:28,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/752cfee42/9cec53d39b8a4c8fb563ee6136fd8d57/FLAG3e3f51b55 [2022-07-13 14:25:28,556 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:25:28,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-07-13 14:25:28,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/752cfee42/9cec53d39b8a4c8fb563ee6136fd8d57/FLAG3e3f51b55 [2022-07-13 14:25:28,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/752cfee42/9cec53d39b8a4c8fb563ee6136fd8d57 [2022-07-13 14:25:28,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:25:28,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:25:28,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:25:28,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:25:28,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:25:28,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d4ea2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28, skipping insertion in model container [2022-07-13 14:25:28,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:25:28,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:25:28,745 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-benchs/zonotope_loose.c[577,590] [2022-07-13 14:25:28,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:25:28,761 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:25:28,771 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-benchs/zonotope_loose.c[577,590] [2022-07-13 14:25:28,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:25:28,784 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:25:28,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28 WrapperNode [2022-07-13 14:25:28,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:25:28,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:25:28,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:25:28,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:25:28,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,817 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2022-07-13 14:25:28,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:25:28,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:25:28,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:25:28,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:25:28,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:25:28,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:25:28,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:25:28,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:25:28,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (1/1) ... [2022-07-13 14:25:28,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:25:28,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:25:28,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:25:28,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:25:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:25:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:25:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:25:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:25:28,969 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:25:28,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:25:29,046 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:25:29,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:25:29,052 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:25:29,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:25:29 BoogieIcfgContainer [2022-07-13 14:25:29,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:25:29,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:25:29,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:25:29,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:25:29,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:25:28" (1/3) ... [2022-07-13 14:25:29,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2062b509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:25:29, skipping insertion in model container [2022-07-13 14:25:29,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:28" (2/3) ... [2022-07-13 14:25:29,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2062b509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:25:29, skipping insertion in model container [2022-07-13 14:25:29,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:25:29" (3/3) ... [2022-07-13 14:25:29,061 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2022-07-13 14:25:29,073 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:25:29,074 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:25:29,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:25:29,119 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@16fc972, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@25283a97 [2022-07-13 14:25:29,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:25:29,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 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) [2022-07-13 14:25:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 14:25:29,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:25:29,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:25:29,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:25:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:25:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2022-07-13 14:25:29,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:25:29,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423475759] [2022-07-13 14:25:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:25:29,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:25:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:25:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:25:29,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:25:29,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423475759] [2022-07-13 14:25:29,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423475759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:25:29,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:25:29,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:25:29,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441614922] [2022-07-13 14:25:29,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:25:29,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:25:29,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:25:29,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:25:29,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:25:29,318 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:25:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:25:29,332 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-07-13 14:25:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:25:29,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-13 14:25:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:25:29,340 INFO L225 Difference]: With dead ends: 23 [2022-07-13 14:25:29,341 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 14:25:29,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:25:29,349 INFO L413 NwaCegarLoop]: 13 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, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:25:29,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:25:29,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 14:25:29,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 14:25:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:25:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-07-13 14:25:29,377 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2022-07-13 14:25:29,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:25:29,377 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-07-13 14:25:29,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:25:29,378 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-07-13 14:25:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 14:25:29,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:25:29,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:25:29,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:25:29,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:25:29,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:25:29,380 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2022-07-13 14:25:29,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:25:29,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832646018] [2022-07-13 14:25:29,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:25:29,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:25:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:25:29,415 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:25:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:25:29,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:25:29,457 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:25:29,459 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:25:29,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:25:29,473 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 14:25:29,477 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:25:29,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:25:29 BoogieIcfgContainer [2022-07-13 14:25:29,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:25:29,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:25:29,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:25:29,509 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:25:29,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:25:29" (3/4) ... [2022-07-13 14:25:29,512 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:25:29,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:25:29,514 INFO L158 Benchmark]: Toolchain (without parser) took 931.50ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 43.7MB in the end (delta: 21.7MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-07-13 14:25:29,514 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:25:29,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.93ms. Allocated memory is still 102.8MB. Free memory was 65.1MB in the beginning and 78.0MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:25:29,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.44ms. Allocated memory is still 102.8MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:25:29,518 INFO L158 Benchmark]: Boogie Preprocessor took 25.35ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 75.5MB in the end (delta: 891.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:25:29,520 INFO L158 Benchmark]: RCFGBuilder took 207.61ms. Allocated memory is still 102.8MB. Free memory was 75.5MB in the beginning and 66.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:25:29,520 INFO L158 Benchmark]: TraceAbstraction took 452.32ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 44.1MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-13 14:25:29,521 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 102.8MB. Free memory was 44.1MB in the beginning and 43.7MB in the end (delta: 373.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:25:29,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.93ms. Allocated memory is still 102.8MB. Free memory was 65.1MB in the beginning and 78.0MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.44ms. Allocated memory is still 102.8MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.35ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 75.5MB in the end (delta: 891.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 207.61ms. Allocated memory is still 102.8MB. Free memory was 75.5MB in the beginning and 66.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 452.32ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 44.1MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 102.8MB. Free memory was 44.1MB in the beginning and 43.7MB in the end (delta: 373.0kB). 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L21] CALL assume_abort_if_not(x >= 0. && x <= 10.) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L21] RET assume_abort_if_not(x >= 0. && x <= 10.) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L27] CALL __VERIFIER_assert(y >= 0. && y <= 105.) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 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, 13 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=13occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 14:25:29,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/zonotope_loose.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 aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:25:31,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:25:31,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:25:31,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:25:31,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:25:31,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:25:31,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:25:31,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:25:31,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:25:31,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:25:31,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:25:31,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:25:31,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:25:31,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:25:31,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:25:31,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:25:31,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:25:31,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:25:31,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:25:31,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:25:31,556 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:25:31,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:25:31,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:25:31,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:25:31,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:25:31,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:25:31,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:25:31,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:25:31,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:25:31,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:25:31,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:25:31,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:25:31,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:25:31,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:25:31,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:25:31,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:25:31,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:25:31,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:25:31,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:25:31,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:25:31,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:25:31,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:25:31,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:25:31,628 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:25:31,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:25:31,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:25:31,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:25:31,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:25:31,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:25:31,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:25:31,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:25:31,632 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:25:31,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:25:31,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:25:31,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:25:31,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:25:31,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:25:31,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:25:31,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:25:31,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:25:31,634 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:25:31,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:25:31,634 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:25:31,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:25:31,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:25:31,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:25:31,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:25:31,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:25:31,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:25:31,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:25:31,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:25:31,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:25:31,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:25:31,637 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:25:31,637 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:25:31,637 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:25:31,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:25:31,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:25:31,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:25:31,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2022-07-13 14:25:31,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:25:31,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:25:31,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:25:31,997 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:25:31,998 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:25:31,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-07-13 14:25:32,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2909433f/afbb1bc988024d97b01d2fd81214d07f/FLAGf859a4424 [2022-07-13 14:25:32,497 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:25:32,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-07-13 14:25:32,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2909433f/afbb1bc988024d97b01d2fd81214d07f/FLAGf859a4424 [2022-07-13 14:25:32,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2909433f/afbb1bc988024d97b01d2fd81214d07f [2022-07-13 14:25:32,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:25:32,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:25:32,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:25:32,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:25:32,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:25:32,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2286ad52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32, skipping insertion in model container [2022-07-13 14:25:32,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:25:32,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:25:32,643 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-benchs/zonotope_loose.c[577,590] [2022-07-13 14:25:32,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:25:32,660 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:25:32,701 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-benchs/zonotope_loose.c[577,590] [2022-07-13 14:25:32,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:25:32,715 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:25:32,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32 WrapperNode [2022-07-13 14:25:32,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:25:32,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:25:32,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:25:32,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:25:32,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,754 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2022-07-13 14:25:32,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:25:32,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:25:32,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:25:32,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:25:32,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:25:32,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:25:32,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:25:32,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:25:32,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (1/1) ... [2022-07-13 14:25:32,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:25:32,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:25:32,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:25:32,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:25:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:25:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:25:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:25:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:25:32,944 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:25:32,946 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:25:35,967 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:25:35,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:25:35,972 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:25:35,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:25:35 BoogieIcfgContainer [2022-07-13 14:25:35,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:25:35,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:25:35,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:25:35,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:25:35,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:25:32" (1/3) ... [2022-07-13 14:25:35,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414828a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:25:35, skipping insertion in model container [2022-07-13 14:25:35,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:25:32" (2/3) ... [2022-07-13 14:25:35,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414828a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:25:35, skipping insertion in model container [2022-07-13 14:25:35,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:25:35" (3/3) ... [2022-07-13 14:25:35,981 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2022-07-13 14:25:35,993 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:25:35,993 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:25:36,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:25:36,038 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c3936c5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@828dd0f [2022-07-13 14:25:36,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:25:36,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 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) [2022-07-13 14:25:36,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 14:25:36,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:25:36,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:25:36,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:25:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:25:36,061 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2022-07-13 14:25:36,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:25:36,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081859724] [2022-07-13 14:25:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:25:36,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:25:36,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:25:36,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:25:36,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:25:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:25:36,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:25:36,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:25:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:25:36,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:25:36,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:25:36,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081859724] [2022-07-13 14:25:36,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081859724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:25:36,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:25:36,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:25:36,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116110502] [2022-07-13 14:25:36,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:25:36,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:25:36,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:25:36,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:25:36,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:25:36,596 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:25:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:25:36,607 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-07-13 14:25:36,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:25:36,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-13 14:25:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:25:36,615 INFO L225 Difference]: With dead ends: 23 [2022-07-13 14:25:36,616 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 14:25:36,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:25:36,629 INFO L413 NwaCegarLoop]: 13 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, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:25:36,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:25:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 14:25:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 14:25:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:25:36,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-07-13 14:25:36,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2022-07-13 14:25:36,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:25:36,655 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-07-13 14:25:36,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:25:36,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-07-13 14:25:36,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 14:25:36,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:25:36,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:25:36,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:25:36,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:25:36,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:25:36,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:25:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2022-07-13 14:25:36,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:25:36,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158882395] [2022-07-13 14:25:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:25:36,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:25:36,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:25:36,876 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) [2022-07-13 14:25:36,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:25:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:25:37,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 14:25:37,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:26:06,595 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-13 14:27:18,288 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (let ((.cse1 (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and .cse1 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (not .cse1) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2022-07-13 14:27:34,426 WARN L833 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2022-07-13 14:27:36,521 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2022-07-13 14:27:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:27:36,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:27:36,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:27:36,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158882395] [2022-07-13 14:27:36,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158882395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:27:36,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:27:36,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:27:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147597476] [2022-07-13 14:27:36,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:27:36,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 14:27:36,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:27:36,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 14:27:36,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=14, Unknown=8, NotChecked=18, Total=56 [2022-07-13 14:27:36,525 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:27:42,253 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (.cse2 (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (and .cse0 (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= |c_ULTIMATE.start_main_~y~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| .cse1)) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (or (and (or (not .cse2) (not .cse0)) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (and .cse0 .cse2 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32)))) .cse2 (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-07-13 14:27:44,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:27:44,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:27:44,350 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-07-13 14:27:44,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 14:27:44,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-13 14:27:44,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:27:44,395 INFO L225 Difference]: With dead ends: 13 [2022-07-13 14:27:44,395 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 14:27:44,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=23, Invalid=21, Unknown=10, NotChecked=36, Total=90 [2022-07-13 14:27:44,397 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 14:27:44,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 18 Unchecked, 2.7s Time] [2022-07-13 14:27:44,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 14:27:44,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 14:27:44,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:27:44,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-13 14:27:44,405 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-13 14:27:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:27:44,405 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-13 14:27:44,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:27:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-13 14:27:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 14:27:44,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:27:44,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:27:44,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-13 14:27:44,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:27:44,616 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:27:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:27:44,617 INFO L85 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2022-07-13 14:27:44,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:27:44,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29575765] [2022-07-13 14:27:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:27:44,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:27:44,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:27:44,620 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) [2022-07-13 14:27:44,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 14:27:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:27:44,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 14:27:44,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:28:11,562 WARN L233 SmtUtils]: Spent 13.52s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-13 14:28:29,894 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= |c_ULTIMATE.start_main_~y~0#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:30:17,272 WARN L833 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and .cse1 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse1)))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false