./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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 ../../../trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i -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 56771b04a43eece6453a051ac2b8a2fa87e54647 ...................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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 ../../../trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i -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 56771b04a43eece6453a051ac2b8a2fa87e54647 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 14:12:28,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:12:28,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:12:29,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:12:29,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:12:29,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:12:29,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:12:29,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:12:29,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:12:29,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:12:29,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:12:29,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:12:29,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:12:29,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:12:29,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:12:29,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:12:29,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:12:29,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:12:29,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:12:29,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:12:29,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:12:29,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:12:29,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:12:29,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:12:29,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:12:29,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:12:29,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:12:29,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:12:29,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:12:29,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:12:29,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:12:29,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:12:29,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:12:29,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:12:29,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:12:29,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:12:29,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:12:29,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:12:29,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:12:29,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:12:29,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:12:29,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:12:29,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:12:29,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:12:29,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:12:29,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:12:29,125 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:12:29,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:12:29,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:12:29,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:12:29,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:12:29,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:12:29,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:12:29,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:12:29,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:12:29,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:12:29,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:12:29,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:12:29,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:12:29,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:12:29,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:12:29,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:12:29,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:12:29,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:12:29,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:12:29,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:12:29,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:12:29,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:12:29,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:12:29,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:12:29,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:12:29,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56771b04a43eece6453a051ac2b8a2fa87e54647 [2020-12-02 14:12:29,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:12:29,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:12:29,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:12:29,633 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:12:29,634 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:12:29,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i [2020-12-02 14:12:29,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bc420bc/e1cf480450454c529b2bad5745ab23e4/FLAG78dda8ce9 [2020-12-02 14:12:30,461 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:12:30,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i [2020-12-02 14:12:30,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bc420bc/e1cf480450454c529b2bad5745ab23e4/FLAG78dda8ce9 [2020-12-02 14:12:30,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bc420bc/e1cf480450454c529b2bad5745ab23e4 [2020-12-02 14:12:30,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:12:30,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:12:30,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:12:30,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:12:30,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:12:30,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:30" (1/1) ... [2020-12-02 14:12:30,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b2ee93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:30, skipping insertion in model container [2020-12-02 14:12:30,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:30" (1/1) ... [2020-12-02 14:12:30,817 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:12:30,858 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:12:31,553 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:847) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1710) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1400) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1079) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2341) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:704) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2341) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2341) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1568) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1044) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1422) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:578) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-02 14:12:31,561 INFO L168 Benchmark]: Toolchain (without parser) took 781.46 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.5 MB in the beginning and 33.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-12-02 14:12:31,562 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 41.9 MB. Free memory was 25.0 MB in the beginning and 24.9 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:12:31,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.41 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.4 MB in the beginning and 33.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-12-02 14:12:31,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 41.9 MB. Free memory was 25.0 MB in the beginning and 24.9 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 778.41 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.4 MB in the beginning and 33.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:847) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 14:12:34,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:12:34,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:12:34,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:12:34,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:12:34,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:12:34,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:12:34,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:12:34,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:12:34,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:12:34,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:12:34,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:12:34,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:12:34,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:12:34,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:12:34,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:12:34,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:12:34,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:12:34,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:12:34,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:12:34,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:12:34,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:12:34,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:12:34,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:12:34,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:12:34,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:12:34,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:12:34,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:12:34,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:12:34,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:12:34,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:12:34,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:12:34,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:12:34,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:12:34,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:12:34,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:12:34,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:12:34,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:12:34,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:12:34,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:12:34,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:12:34,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:12:34,180 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:12:34,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:12:34,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:12:34,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:12:34,183 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:12:34,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:12:34,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:12:34,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:12:34,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:12:34,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:12:34,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:12:34,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:12:34,185 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:12:34,186 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:12:34,186 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:12:34,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:12:34,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:12:34,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:12:34,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:12:34,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:12:34,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:12:34,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:12:34,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:12:34,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:12:34,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:12:34,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:12:34,189 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:12:34,190 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:12:34,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:12:34,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:12:34,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:12:34,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56771b04a43eece6453a051ac2b8a2fa87e54647 [2020-12-02 14:12:34,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:12:34,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:12:34,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:12:34,738 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:12:34,739 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:12:34,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i [2020-12-02 14:12:34,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ae991a9/f53e757fd8a54bfb9fecbf539e278127/FLAG68a69c9c1 [2020-12-02 14:12:35,572 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:12:35,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i [2020-12-02 14:12:35,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ae991a9/f53e757fd8a54bfb9fecbf539e278127/FLAG68a69c9c1 [2020-12-02 14:12:35,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ae991a9/f53e757fd8a54bfb9fecbf539e278127 [2020-12-02 14:12:35,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:12:35,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:12:35,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:12:35,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:12:35,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:12:35,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:35" (1/1) ... [2020-12-02 14:12:35,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3380ac85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:35, skipping insertion in model container [2020-12-02 14:12:35,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:35" (1/1) ... [2020-12-02 14:12:35,848 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:12:35,935 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:12:36,678 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[40580,40593] [2020-12-02 14:12:36,709 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[41059,41072] [2020-12-02 14:12:36,717 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[41228,41241] [2020-12-02 14:12:36,725 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[41572,41585] [2020-12-02 14:12:36,748 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[41926,41939] [2020-12-02 14:12:36,755 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[42100,42113] [2020-12-02 14:12:36,761 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[42265,42278] [2020-12-02 14:12:36,766 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[42425,42438] [2020-12-02 14:12:36,771 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:12:36,798 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:12:36,852 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[40580,40593] [2020-12-02 14:12:36,863 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[41059,41072] [2020-12-02 14:12:36,866 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[41228,41241] [2020-12-02 14:12:36,869 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[41572,41585] [2020-12-02 14:12:36,873 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[41926,41939] [2020-12-02 14:12:36,876 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[42100,42113] [2020-12-02 14:12:36,879 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[42265,42278] [2020-12-02 14:12:36,881 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float_lib1.i[42425,42438] [2020-12-02 14:12:36,883 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:12:37,233 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:12:37,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37 WrapperNode [2020-12-02 14:12:37,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:12:37,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:12:37,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:12:37,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:12:37,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:12:37,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:12:37,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:12:37,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:12:37,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... [2020-12-02 14:12:37,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:12:37,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:12:37,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:12:37,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:12:37,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:12:37,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 14:12:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 14:12:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:12:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:12:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:12:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_LONGDOUBLE [2020-12-02 14:12:40,832 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:12:40,832 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 14:12:40,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:40 BoogieIcfgContainer [2020-12-02 14:12:40,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:12:40,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:12:40,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:12:40,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:12:40,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:12:35" (1/3) ... [2020-12-02 14:12:40,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de607ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:40, skipping insertion in model container [2020-12-02 14:12:40,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:37" (2/3) ... [2020-12-02 14:12:40,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de607ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:40, skipping insertion in model container [2020-12-02 14:12:40,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:40" (3/3) ... [2020-12-02 14:12:40,844 INFO L111 eAbstractionObserver]: Analyzing ICFG float_lib1.i [2020-12-02 14:12:40,861 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:12:40,865 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-02 14:12:40,879 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-02 14:12:40,907 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:12:40,907 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:12:40,907 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:12:40,908 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:12:40,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:12:40,908 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:12:40,908 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:12:40,909 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:12:40,925 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-12-02 14:12:40,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:12:40,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:12:40,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:12:40,933 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:12:40,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:12:40,939 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-02 14:12:40,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:12:40,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16691842] [2020-12-02 14:12:40,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 14:12:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:12:41,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 14:12:41,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:12:43,588 WARN L197 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-02 14:12:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:12:43,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:12:50,023 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 44 [2020-12-02 14:12:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:12:50,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16691842] [2020-12-02 14:12:50,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:12:50,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-02 14:12:50,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485710513] [2020-12-02 14:12:50,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 14:12:50,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:12:50,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 14:12:50,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2020-12-02 14:12:50,054 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 6 states. [2020-12-02 14:12:53,689 WARN L197 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 41 [2020-12-02 14:12:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:12:59,356 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2020-12-02 14:12:59,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 14:12:59,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-02 14:12:59,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:12:59,368 INFO L225 Difference]: With dead ends: 67 [2020-12-02 14:12:59,368 INFO L226 Difference]: Without dead ends: 31 [2020-12-02 14:12:59,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2020-12-02 14:12:59,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-02 14:12:59,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-02 14:12:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-02 14:12:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2020-12-02 14:12:59,408 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 4 [2020-12-02 14:12:59,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:12:59,409 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2020-12-02 14:12:59,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 14:12:59,409 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-12-02 14:12:59,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-02 14:12:59,410 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:12:59,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-02 14:12:59,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 14:12:59,619 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:12:59,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:12:59,622 INFO L82 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2020-12-02 14:12:59,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:12:59,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111418784] [2020-12-02 14:12:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 14:13:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:13:00,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-02 14:13:00,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:13:01,267 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-02 14:13:01,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:01,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:13:02,019 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 6 [2020-12-02 14:13:03,584 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-02 14:13:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:03,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111418784] [2020-12-02 14:13:03,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:13:03,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-02 14:13:03,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576711195] [2020-12-02 14:13:03,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 14:13:03,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:13:03,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 14:13:03,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-02 14:13:03,619 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 6 states. [2020-12-02 14:13:05,567 WARN L197 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-12-02 14:13:09,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:13:09,232 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2020-12-02 14:13:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 14:13:09,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-12-02 14:13:09,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:13:09,247 INFO L225 Difference]: With dead ends: 31 [2020-12-02 14:13:09,247 INFO L226 Difference]: Without dead ends: 29 [2020-12-02 14:13:09,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-02 14:13:09,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-02 14:13:09,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-02 14:13:09,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-02 14:13:09,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2020-12-02 14:13:09,258 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 6 [2020-12-02 14:13:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:13:09,258 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2020-12-02 14:13:09,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 14:13:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2020-12-02 14:13:09,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 14:13:09,259 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:13:09,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:13:09,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 14:13:09,461 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:13:09,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:13:09,463 INFO L82 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2020-12-02 14:13:09,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:13:09,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955006975] [2020-12-02 14:13:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 14:13:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:13:10,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-02 14:13:10,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:13:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:10,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:13:10,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:10,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955006975] [2020-12-02 14:13:10,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:13:10,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-02 14:13:10,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867407060] [2020-12-02 14:13:10,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 14:13:10,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:13:10,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 14:13:10,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:13:10,599 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 4 states. [2020-12-02 14:13:10,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:13:10,828 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2020-12-02 14:13:10,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 14:13:10,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-02 14:13:10,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:13:10,829 INFO L225 Difference]: With dead ends: 29 [2020-12-02 14:13:10,830 INFO L226 Difference]: Without dead ends: 27 [2020-12-02 14:13:10,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:13:10,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-02 14:13:10,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-02 14:13:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-02 14:13:10,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-12-02 14:13:10,834 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 8 [2020-12-02 14:13:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:13:10,834 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-12-02 14:13:10,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 14:13:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-12-02 14:13:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 14:13:10,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:13:10,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:13:11,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 14:13:11,038 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:13:11,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:13:11,039 INFO L82 PathProgramCache]: Analyzing trace with hash -904234870, now seen corresponding path program 1 times [2020-12-02 14:13:11,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:13:11,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096740711] [2020-12-02 14:13:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-02 14:13:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:13:12,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-02 14:13:12,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:13:13,493 WARN L197 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-02 14:13:13,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:13,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:13:18,422 WARN L197 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 21 [2020-12-02 14:13:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:18,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096740711] [2020-12-02 14:13:18,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:13:18,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-02 14:13:18,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844328860] [2020-12-02 14:13:18,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 14:13:18,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:13:18,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 14:13:18,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2020-12-02 14:13:18,477 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 6 states. [2020-12-02 14:13:20,708 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 21 [2020-12-02 14:13:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:13:24,445 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-12-02 14:13:24,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 14:13:24,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-02 14:13:24,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:13:24,459 INFO L225 Difference]: With dead ends: 27 [2020-12-02 14:13:24,459 INFO L226 Difference]: Without dead ends: 25 [2020-12-02 14:13:24,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2020-12-02 14:13:24,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-02 14:13:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-12-02 14:13:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-02 14:13:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2020-12-02 14:13:24,464 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 10 [2020-12-02 14:13:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:13:24,464 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2020-12-02 14:13:24,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 14:13:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-12-02 14:13:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 14:13:24,465 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:13:24,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:13:24,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 14:13:24,667 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:13:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:13:24,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1386190996, now seen corresponding path program 1 times [2020-12-02 14:13:24,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:13:24,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402988417] [2020-12-02 14:13:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-02 14:13:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:13:25,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-02 14:13:25,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:13:28,012 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_#t~nondet157| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet156| (_ BitVec 96))) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet157|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet157|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet157|))) (.cse1 (fp ((_ extract 79 79) |ULTIMATE.start_main_#t~nondet156|) ((_ extract 78 64) |ULTIMATE.start_main_#t~nondet156|) ((_ extract 63 0) |ULTIMATE.start_main_#t~nondet156|)))) (and (= (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet158|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet158|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet158|)) (fp.div roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)))) (= ((_ to_fp 11 53) roundNearestTiesToEven .cse1) .cse0) (= .cse1 ((_ to_fp 15 65) roundNearestTiesToEven (/ 222507385850720138309.0 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)))))) is different from false [2020-12-02 14:13:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:28,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:13:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:29,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402988417] [2020-12-02 14:13:29,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:13:29,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-02 14:13:29,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038482044] [2020-12-02 14:13:29,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 14:13:29,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:13:29,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 14:13:29,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2020-12-02 14:13:29,006 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 5 states. [2020-12-02 14:13:33,235 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|ULTIMATE.start_main_#t~nondet157| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet156| (_ BitVec 96))) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet157|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet157|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet157|))) (.cse1 (fp ((_ extract 79 79) |ULTIMATE.start_main_#t~nondet156|) ((_ extract 78 64) |ULTIMATE.start_main_#t~nondet156|) ((_ extract 63 0) |ULTIMATE.start_main_#t~nondet156|)))) (and (= (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet158|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet158|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet158|)) (fp.div roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)))) (= ((_ to_fp 11 53) roundNearestTiesToEven .cse1) .cse0) (= .cse1 ((_ to_fp 15 65) roundNearestTiesToEven (/ 222507385850720138309.0 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)))))) (fp.isSubnormal (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet158|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet158|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet158|)))) is different from false [2020-12-02 14:13:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:13:33,260 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-12-02 14:13:33,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 14:13:33,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-02 14:13:33,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:13:33,262 INFO L225 Difference]: With dead ends: 25 [2020-12-02 14:13:33,262 INFO L226 Difference]: Without dead ends: 23 [2020-12-02 14:13:33,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=10, Total=30 [2020-12-02 14:13:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-02 14:13:33,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-02 14:13:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-02 14:13:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2020-12-02 14:13:33,267 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 12 [2020-12-02 14:13:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:13:33,267 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2020-12-02 14:13:33,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 14:13:33,274 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-12-02 14:13:33,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 14:13:33,275 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:13:33,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:13:33,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-02 14:13:33,476 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:13:33,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:13:33,477 INFO L82 PathProgramCache]: Analyzing trace with hash -689559826, now seen corresponding path program 1 times [2020-12-02 14:13:33,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:13:33,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537428674] [2020-12-02 14:13:33,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-02 14:13:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:13:34,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-02 14:13:34,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:13:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:34,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:13:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:34,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537428674] [2020-12-02 14:13:34,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:13:34,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-02 14:13:34,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148112775] [2020-12-02 14:13:34,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 14:13:34,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:13:34,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 14:13:34,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:13:34,998 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2020-12-02 14:13:35,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:13:35,126 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-12-02 14:13:35,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 14:13:35,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-02 14:13:35,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:13:35,127 INFO L225 Difference]: With dead ends: 23 [2020-12-02 14:13:35,128 INFO L226 Difference]: Without dead ends: 21 [2020-12-02 14:13:35,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:13:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-02 14:13:35,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-02 14:13:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-02 14:13:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-12-02 14:13:35,131 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 14 [2020-12-02 14:13:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:13:35,132 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-12-02 14:13:35,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 14:13:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-12-02 14:13:35,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 14:13:35,133 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:13:35,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:13:35,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-02 14:13:35,341 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:13:35,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:13:35,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1241903344, now seen corresponding path program 1 times [2020-12-02 14:13:35,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:13:35,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139209793] [2020-12-02 14:13:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-02 14:13:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:13:36,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-02 14:13:36,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:13:36,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:36,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:13:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:36,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139209793] [2020-12-02 14:13:36,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:13:36,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-02 14:13:36,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856721702] [2020-12-02 14:13:36,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 14:13:36,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:13:36,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 14:13:36,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:13:36,788 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 4 states. [2020-12-02 14:13:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:13:36,942 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-12-02 14:13:36,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 14:13:36,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-02 14:13:36,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:13:36,943 INFO L225 Difference]: With dead ends: 21 [2020-12-02 14:13:36,943 INFO L226 Difference]: Without dead ends: 19 [2020-12-02 14:13:36,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:13:36,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-02 14:13:36,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-02 14:13:36,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-02 14:13:36,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-12-02 14:13:36,947 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 16 [2020-12-02 14:13:36,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:13:36,947 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-12-02 14:13:36,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 14:13:36,947 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-12-02 14:13:36,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 14:13:36,948 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:13:36,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:13:37,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-02 14:13:37,162 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:13:37,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:13:37,163 INFO L82 PathProgramCache]: Analyzing trace with hash 531920850, now seen corresponding path program 1 times [2020-12-02 14:13:37,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:13:37,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119134651] [2020-12-02 14:13:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-02 14:13:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:13:38,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-02 14:13:38,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:13:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:38,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:13:38,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:38,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119134651] [2020-12-02 14:13:38,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:13:38,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-02 14:13:38,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512352385] [2020-12-02 14:13:38,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 14:13:38,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:13:38,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 14:13:38,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:13:38,595 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 4 states. [2020-12-02 14:13:38,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:13:38,820 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-12-02 14:13:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 14:13:38,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-02 14:13:38,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:13:38,829 INFO L225 Difference]: With dead ends: 19 [2020-12-02 14:13:38,829 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 14:13:38,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 14:13:38,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 14:13:38,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 14:13:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 14:13:38,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 14:13:38,830 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-02 14:13:38,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:13:38,830 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 14:13:38,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 14:13:38,830 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 14:13:38,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 14:13:39,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-02 14:13:39,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 14:13:39,043 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 380) no Hoare annotation was computed. [2020-12-02 14:13:39,043 INFO L262 CegarLoopResult]: For program point L382(line 382) no Hoare annotation was computed. [2020-12-02 14:13:39,043 INFO L262 CegarLoopResult]: For program point L382-1(line 382) no Hoare annotation was computed. [2020-12-02 14:13:39,043 INFO L262 CegarLoopResult]: For program point L378(line 378) no Hoare annotation was computed. [2020-12-02 14:13:39,043 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 376) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point L378-1(line 378) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point L378-3(line 378) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 379) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point L379(line 379) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point L379-1(line 379) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 375) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point L379-3(line 379) no Hoare annotation was computed. [2020-12-02 14:13:39,044 INFO L262 CegarLoopResult]: For program point L375(line 375) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point L375-1(line 375) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point L375-3(line 375) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 382) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point L380(line 380) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point L380-1(line 380) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point L380-3(line 380) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point L376(line 376) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point L376-1(line 376) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point L376-3(line 376) no Hoare annotation was computed. [2020-12-02 14:13:39,045 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2020-12-02 14:13:39,046 INFO L262 CegarLoopResult]: For program point L381(line 381) no Hoare annotation was computed. [2020-12-02 14:13:39,046 INFO L262 CegarLoopResult]: For program point L381-1(line 381) no Hoare annotation was computed. [2020-12-02 14:13:39,046 INFO L262 CegarLoopResult]: For program point L381-3(line 381) no Hoare annotation was computed. [2020-12-02 14:13:39,046 INFO L262 CegarLoopResult]: For program point L377(line 377) no Hoare annotation was computed. [2020-12-02 14:13:39,046 INFO L262 CegarLoopResult]: For program point L377-1(line 377) no Hoare annotation was computed. [2020-12-02 14:13:39,046 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 377) no Hoare annotation was computed. [2020-12-02 14:13:39,046 INFO L262 CegarLoopResult]: For program point L377-3(line 377) no Hoare annotation was computed. [2020-12-02 14:13:39,046 INFO L262 CegarLoopResult]: For program point L373(lines 373 383) no Hoare annotation was computed. [2020-12-02 14:13:39,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:13:39 BoogieIcfgContainer [2020-12-02 14:13:39,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:13:39,052 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:13:39,052 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:13:39,052 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:13:39,053 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:40" (3/4) ... [2020-12-02 14:13:39,056 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 14:13:39,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-02 14:13:39,072 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 14:13:39,073 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:13:39,074 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:13:39,158 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 14:13:39,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:13:39,160 INFO L168 Benchmark]: Toolchain (without parser) took 63339.56 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 32.5 MB in the beginning and 26.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:39,160 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 19.7 MB in the beginning and 19.7 MB in the end (delta: 23.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:13:39,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1411.72 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 32.4 MB in the beginning and 25.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:39,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.46 ms. Allocated memory is still 58.7 MB. Free memory was 24.6 MB in the beginning and 21.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:39,161 INFO L168 Benchmark]: Boogie Preprocessor took 41.55 ms. Allocated memory is still 58.7 MB. Free memory was 21.4 MB in the beginning and 19.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:39,162 INFO L168 Benchmark]: RCFGBuilder took 3479.90 ms. Allocated memory is still 58.7 MB. Free memory was 19.4 MB in the beginning and 19.7 MB in the end (delta: -335.0 kB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:39,162 INFO L168 Benchmark]: TraceAbstraction took 58215.34 ms. Allocated memory is still 58.7 MB. Free memory was 19.1 MB in the beginning and 33.2 MB in the end (delta: -14.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:13:39,163 INFO L168 Benchmark]: Witness Printer took 106.82 ms. Allocated memory is still 58.7 MB. Free memory was 33.2 MB in the beginning and 26.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:39,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 19.7 MB in the beginning and 19.7 MB in the end (delta: 23.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1411.72 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 32.4 MB in the beginning and 25.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.46 ms. Allocated memory is still 58.7 MB. Free memory was 24.6 MB in the beginning and 21.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.55 ms. Allocated memory is still 58.7 MB. Free memory was 21.4 MB in the beginning and 19.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3479.90 ms. Allocated memory is still 58.7 MB. Free memory was 19.4 MB in the beginning and 19.7 MB in the end (delta: -335.0 kB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 58215.34 ms. Allocated memory is still 58.7 MB. Free memory was 19.1 MB in the beginning and 33.2 MB in the end (delta: -14.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 106.82 ms. Allocated memory is still 58.7 MB. Free memory was 33.2 MB in the beginning and 26.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 376]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 379]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 382]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 380]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 381]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 378]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 375]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 377]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 58.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 25.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 158 SDtfs, 51 SDslu, 247 SDs, 0 SdLazy, 69 SolverSat, 4 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 7.8s SatisfiabilityAnalysisTime, 22.1s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 160 ConstructedInterpolants, 19 QuantifiedInterpolants, 9446 SizeOfPredicates, 22 NumberOfNonLiveVariables, 509 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 proved your program to be correct! Received shutdown request...