./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0 --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 dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:23:52,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:23:52,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:23:52,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:23:52,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:23:52,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:23:52,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:23:52,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:23:52,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:23:52,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:23:52,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:23:52,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:23:52,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:23:52,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:23:52,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:23:52,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:23:52,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:23:52,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:23:52,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:23:52,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:23:52,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:23:52,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:23:52,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:23:52,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:23:52,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:23:52,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:23:52,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:23:52,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:23:52,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:23:52,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:23:52,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:23:52,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:23:52,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:23:52,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:23:52,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:23:52,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:23:52,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:23:52,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:23:52,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:23:52,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:23:52,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:23:52,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:23:52,476 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:23:52,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:23:52,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:23:52,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:23:52,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:23:52,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:23:52,490 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:23:52,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:23:52,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:23:52,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:23:52,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:23:52,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:23:52,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:23:52,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:23:52,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:23:52,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:23:52,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:23:52,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:23:52,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:23:52,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:23:52,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:23:52,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:23:52,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:23:52,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:23:52,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:23:52,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:23:52,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:23:52,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:23:52,496 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:23:52,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:23:52,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:23:52,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:23:52,499 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 [2021-11-22 14:23:52,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:23:52,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:23:52,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:23:52,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:23:52,851 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:23:52,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-11-22 14:23:52,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data/95b975ec5/1e9aedb394854d0382dd11a9f6341a39/FLAGa09946c82 [2021-11-22 14:23:53,549 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:23:53,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-11-22 14:23:53,565 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data/95b975ec5/1e9aedb394854d0382dd11a9f6341a39/FLAGa09946c82 [2021-11-22 14:23:53,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data/95b975ec5/1e9aedb394854d0382dd11a9f6341a39 [2021-11-22 14:23:53,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:23:53,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:23:53,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:23:53,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:23:53,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:23:53,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:53" (1/1) ... [2021-11-22 14:23:53,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e91fbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:53, skipping insertion in model container [2021-11-22 14:23:53,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:53" (1/1) ... [2021-11-22 14:23:53,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:23:53,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:23:54,464 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:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) 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:1107) 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:2392) 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:729) 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:2392) 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:730) 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:729) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:674) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1441) 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:1385) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) 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:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) 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) [2021-11-22 14:23:54,470 INFO L158 Benchmark]: Toolchain (without parser) took 649.29ms. Allocated memory is still 113.2MB. Free memory was 72.2MB in the beginning and 84.2MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:23:54,471 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:23:54,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.24ms. Allocated memory is still 113.2MB. Free memory was 71.9MB in the beginning and 84.2MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:23:54,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.24ms. Allocated memory is still 113.2MB. Free memory was 71.9MB in the beginning and 84.2MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0 --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 dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:23:56,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:23:56,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:23:56,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:23:56,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:23:56,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:23:56,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:23:56,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:23:56,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:23:56,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:23:56,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:23:56,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:23:56,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:23:56,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:23:56,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:23:56,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:23:56,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:23:56,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:23:56,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:23:56,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:23:56,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:23:56,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:23:56,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:23:56,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:23:56,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:23:56,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:23:56,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:23:56,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:23:56,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:23:56,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:23:56,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:23:56,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:23:56,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:23:56,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:23:56,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:23:56,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:23:56,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:23:56,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:23:56,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:23:56,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:23:56,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:23:56,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 14:23:56,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:23:56,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:23:56,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:23:56,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:23:56,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:23:56,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:23:56,990 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:23:56,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:23:56,991 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:23:56,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:23:56,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:23:56,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:23:56,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:23:56,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:23:56,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 14:23:56,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 14:23:56,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 14:23:56,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:23:56,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:23:56,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:23:56,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:23:56,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:23:56,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:23:56,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:23:56,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:23:56,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:23:56,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:23:56,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:23:56,998 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 14:23:56,998 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 14:23:56,998 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:23:56,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:23:56,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:23:56,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:23:57,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 14:23:57,000 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 [2021-11-22 14:23:57,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:23:57,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:23:57,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:23:57,471 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:23:57,472 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:23:57,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-11-22 14:23:57,551 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data/c4f8a2337/85f9bd08266745b48e8d80949192c2f8/FLAGcda5c43ae [2021-11-22 14:23:58,225 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:23:58,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-11-22 14:23:58,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data/c4f8a2337/85f9bd08266745b48e8d80949192c2f8/FLAGcda5c43ae [2021-11-22 14:23:58,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/data/c4f8a2337/85f9bd08266745b48e8d80949192c2f8 [2021-11-22 14:23:58,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:23:58,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:23:58,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:23:58,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:23:58,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:23:58,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:58" (1/1) ... [2021-11-22 14:23:58,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4911f3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:58, skipping insertion in model container [2021-11-22 14:23:58,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:58" (1/1) ... [2021-11-22 14:23:58,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:23:58,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:23:59,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40610,40623] [2021-11-22 14:23:59,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40902,40915] [2021-11-22 14:23:59,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40949,40962] [2021-11-22 14:23:59,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:23:59,341 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:23:59,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40610,40623] [2021-11-22 14:23:59,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40902,40915] [2021-11-22 14:23:59,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40949,40962] [2021-11-22 14:23:59,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:23:59,565 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:23:59,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59 WrapperNode [2021-11-22 14:23:59,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:23:59,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:23:59,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:23:59,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:23:59,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,649 INFO L137 Inliner]: procedures = 450, calls = 10, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 41 [2021-11-22 14:23:59,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:23:59,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:23:59,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:23:59,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:23:59,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:23:59,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:23:59,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:23:59,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:23:59,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (1/1) ... [2021-11-22 14:23:59,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:23:59,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:23:59,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:23:59,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:23:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 14:23:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:23:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:23:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:23:59,919 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:23:59,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:24:03,868 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:24:03,875 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:24:03,875 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 14:24:03,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:03 BoogieIcfgContainer [2021-11-22 14:24:03,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:24:03,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:24:03,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:24:03,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:24:03,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:23:58" (1/3) ... [2021-11-22 14:24:03,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b3f945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:03, skipping insertion in model container [2021-11-22 14:24:03,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:59" (2/3) ... [2021-11-22 14:24:03,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b3f945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:03, skipping insertion in model container [2021-11-22 14:24:03,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:03" (3/3) ... [2021-11-22 14:24:03,886 INFO L111 eAbstractionObserver]: Analyzing ICFG float-div1.i [2021-11-22 14:24:03,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:24:03,892 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-22 14:24:03,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:24:03,947 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:24:03,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-22 14:24:03,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 16 states have (on average 1.5) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 14:24:03,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:03,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 14:24:03,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:24:03,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:03,972 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-22 14:24:03,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:03,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117682844] [2021-11-22 14:24:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:03,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:03,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:03,986 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:03,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 14:24:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:04,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 14:24:04,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:04,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:04,461 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:04,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117682844] [2021-11-22 14:24:04,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117682844] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:04,463 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:04,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 14:24:04,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720333133] [2021-11-22 14:24:04,465 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:04,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:24:04,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:24:04,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:24:04,501 INFO L87 Difference]: Start difference. First operand has 20 states, 16 states have (on average 1.5) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:04,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:04,516 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2021-11-22 14:24:04,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:24:04,522 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-22 14:24:04,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:04,527 INFO L225 Difference]: With dead ends: 37 [2021-11-22 14:24:04,528 INFO L226 Difference]: Without dead ends: 16 [2021-11-22 14:24:04,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:24:04,534 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:04,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:24:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-22 14:24:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-22 14:24:04,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:04,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-11-22 14:24:04,564 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 6 [2021-11-22 14:24:04,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:04,565 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-11-22 14:24:04,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:04,565 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-11-22 14:24:04,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 14:24:04,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:04,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 14:24:04,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-22 14:24:04,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:24:04,767 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:24:04,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:04,768 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-22 14:24:04,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:04,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830945180] [2021-11-22 14:24:04,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:04,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:04,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:04,773 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:04,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 14:24:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:05,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 14:24:05,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:24,127 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (and (= (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) |c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0#1|) (not (fp.isInfinite |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isSubnormal |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)) |ULTIMATE.start_inductiveStepHunt_~startState#1|)))) is different from false [2021-11-22 14:24:43,142 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div roundNearestTiesToEven .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (not (fp.isInfinite |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isSubnormal |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.lt .cse1 |ULTIMATE.start_inductiveStepHunt_~startState#1|)))) is different from false [2021-11-22 14:24:45,197 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div roundNearestTiesToEven .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (not (fp.isInfinite |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isSubnormal |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.lt .cse1 |ULTIMATE.start_inductiveStepHunt_~startState#1|)))) is different from true [2021-11-22 14:24:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:45,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:51,520 WARN L838 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2021-11-22 14:24:53,609 WARN L860 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from true [2021-11-22 14:25:04,167 WARN L838 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from false [2021-11-22 14:25:06,253 WARN L860 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from true [2021-11-22 14:25:37,526 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_inductiveStepHunt_~startState#1_4| (_ FloatingPoint 8 24))) (or (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)) (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4| (fp.div c_currentRoundingMode .cse0 |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (fp.isInfinite |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|))) is different from false [2021-11-22 14:25:39,611 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_inductiveStepHunt_~startState#1_4| (_ FloatingPoint 8 24))) (or (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)) (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4| (fp.div c_currentRoundingMode .cse0 |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (fp.isInfinite |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|))) is different from true [2021-11-22 14:25:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:39,612 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:39,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830945180] [2021-11-22 14:25:39,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830945180] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:39,613 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:39,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-11-22 14:25:39,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076624483] [2021-11-22 14:25:39,613 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:39,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 14:25:39,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:39,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 14:25:39,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=20, Unknown=9, NotChecked=60, Total=110 [2021-11-22 14:25:39,617 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:41,697 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|v_ULTIMATE.start_inductiveStepHunt_~startState#1_4| (_ FloatingPoint 8 24))) (or (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)) (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4| (fp.div c_currentRoundingMode .cse0 |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (fp.isInfinite |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)))) is different from false [2021-11-22 14:25:43,791 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|v_ULTIMATE.start_inductiveStepHunt_~startState#1_4| (_ FloatingPoint 8 24))) (or (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)) (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4| (fp.div c_currentRoundingMode .cse0 |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (fp.isInfinite |v_ULTIMATE.start_inductiveStepHunt_~startState#1_4|)))) is different from true [2021-11-22 14:25:45,877 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (let ((.cse3 (fp.isSubnormal |c_ULTIMATE.start_inductiveStepHunt_~startState#1|))) (or (and (let ((.cse1 (fp.lt .cse2 |c_ULTIMATE.start_inductiveStepHunt_~startState#1|))) (or (and (or (and .cse0 (not (fp.isNormal |c_ULTIMATE.start_inductiveStepHunt_~startState#1|))) (and (not (fp.isInfinite |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32)))) .cse1) (and .cse0 (not .cse1)))) (not .cse3)) (and .cse0 .cse3))) (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) |c_ULTIMATE.start_inductiveStepHunt_~target~0#1|) (or .cse0 (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse2)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-22 14:25:47,964 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (let ((.cse3 (fp.isSubnormal |c_ULTIMATE.start_inductiveStepHunt_~startState#1|))) (or (and (let ((.cse1 (fp.lt .cse2 |c_ULTIMATE.start_inductiveStepHunt_~startState#1|))) (or (and (or (and .cse0 (not (fp.isNormal |c_ULTIMATE.start_inductiveStepHunt_~startState#1|))) (and (not (fp.isInfinite |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32)))) .cse1) (and .cse0 (not .cse1)))) (not .cse3)) (and .cse0 .cse3))) (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) |c_ULTIMATE.start_inductiveStepHunt_~target~0#1|) (or .cse0 (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse2)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-22 14:25:50,045 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) |c_ULTIMATE.start_inductiveStepHunt_~target~0#1|) (not (fp.isInfinite |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (not (fp.isSubnormal |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) (= c_currentRoundingMode roundNearestTiesToEven) (fp.lt .cse0 |c_ULTIMATE.start_inductiveStepHunt_~startState#1|))) is different from false [2021-11-22 14:25:52,136 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) |c_ULTIMATE.start_inductiveStepHunt_~target~0#1|) (not (fp.isInfinite |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (not (fp.isSubnormal |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) (= c_currentRoundingMode roundNearestTiesToEven) (fp.lt .cse0 |c_ULTIMATE.start_inductiveStepHunt_~startState#1|))) is different from true [2021-11-22 14:25:54,217 WARN L838 $PredicateComparison]: unable to prove that (and (fp.gt |c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0#1| ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (and (= (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) |c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0#1|) (not (fp.isInfinite |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isSubnormal |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)) |ULTIMATE.start_inductiveStepHunt_~startState#1|)))) is different from false [2021-11-22 14:25:55,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:55,329 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-22 14:25:55,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:25:55,330 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-22 14:25:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:55,331 INFO L225 Difference]: With dead ends: 16 [2021-11-22 14:25:55,331 INFO L226 Difference]: Without dead ends: 14 [2021-11-22 14:25:55,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.6s TimeCoverageRelationStatistics Valid=29, Invalid=21, Unknown=16, NotChecked=144, Total=210 [2021-11-22 14:25:55,334 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:55,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 45 Unchecked, 1.1s Time] [2021-11-22 14:25:55,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-22 14:25:55,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-22 14:25:55,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-22 14:25:55,339 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 6 [2021-11-22 14:25:55,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:55,339 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-22 14:25:55,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-22 14:25:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 14:25:55,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:55,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:55,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:55,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:55,554 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:25:55,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:55,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1929124086, now seen corresponding path program 1 times [2021-11-22 14:25:55,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:55,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294950321] [2021-11-22 14:25:55,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:55,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:55,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:55,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:55,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 14:25:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:56,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:25:56,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:56,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:56,355 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:56,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294950321] [2021-11-22 14:25:56,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294950321] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:56,356 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:56,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-22 14:25:56,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235944021] [2021-11-22 14:25:56,356 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:56,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:25:56,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:56,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:25:56,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:25:56,358 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:58,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:25:59,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:59,601 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-22 14:25:59,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:25:59,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-22 14:25:59,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:59,603 INFO L225 Difference]: With dead ends: 14 [2021-11-22 14:25:59,605 INFO L226 Difference]: Without dead ends: 12 [2021-11-22 14:25:59,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:25:59,607 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:59,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-22 14:25:59,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-22 14:25:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-22 14:25:59,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-11-22 14:25:59,611 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2021-11-22 14:25:59,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:59,612 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-11-22 14:25:59,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-11-22 14:25:59,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:25:59,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:59,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:59,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:59,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:59,814 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:25:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:59,814 INFO L85 PathProgramCache]: Analyzing trace with hash 326699576, now seen corresponding path program 1 times [2021-11-22 14:25:59,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:59,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710492944] [2021-11-22 14:25:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:59,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:59,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:59,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:59,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 14:26:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:26:00,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 14:26:00,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:26:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:26:10,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:26:49,059 WARN L227 SmtUtils]: Spent 7.22s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:26:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:26:50,872 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:26:50,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710492944] [2021-11-22 14:26:50,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710492944] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:26:50,873 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:26:50,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-22 14:26:50,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289100917] [2021-11-22 14:26:50,874 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:26:50,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 14:26:50,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:26:50,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 14:26:50,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=46, Unknown=3, NotChecked=0, Total=72 [2021-11-22 14:26:50,875 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:26:52,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:26:54,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:26:56,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:26:57,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:26:59,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:27:07,725 WARN L227 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 31 DAG size of output: 23 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:27:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:27:07,726 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-11-22 14:27:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:27:07,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 14:27:07,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:27:07,727 INFO L225 Difference]: With dead ends: 12 [2021-11-22 14:27:07,727 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 14:27:07,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 47.1s TimeCoverageRelationStatistics Valid=40, Invalid=67, Unknown=3, NotChecked=0, Total=110 [2021-11-22 14:27:07,729 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-22 14:27:07,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 1 Unknown, 6 Unchecked, 8.6s Time] [2021-11-22 14:27:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 14:27:07,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 14:27:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:27:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 14:27:07,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-22 14:27:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:27:07,732 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:27:07,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:27:07,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 14:27:07,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 14:27:07,742 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-22 14:27:07,743 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-22 14:27:07,743 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-22 14:27:07,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:27:07,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:27:07,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 14:27:07,955 INFO L858 garLoopResultBuilder]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2021-11-22 14:27:07,955 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 14:27:07,955 INFO L858 garLoopResultBuilder]: For program point L384(line 384) no Hoare annotation was computed. [2021-11-22 14:27:07,955 INFO L858 garLoopResultBuilder]: For program point L384-1(line 384) no Hoare annotation was computed. [2021-11-22 14:27:07,955 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-11-22 14:27:07,956 INFO L861 garLoopResultBuilder]: At program point L399(lines 394 400) the Hoare annotation is: true [2021-11-22 14:27:07,956 INFO L858 garLoopResultBuilder]: For program point L391(line 391) no Hoare annotation was computed. [2021-11-22 14:27:07,956 INFO L858 garLoopResultBuilder]: For program point L391-1(line 391) no Hoare annotation was computed. [2021-11-22 14:27:07,956 INFO L858 garLoopResultBuilder]: For program point L391-3(lines 387 393) no Hoare annotation was computed. [2021-11-22 14:27:07,956 INFO L858 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-11-22 14:27:07,956 INFO L858 garLoopResultBuilder]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-11-22 14:27:07,956 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 14:27:07,957 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 14:27:07,957 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 14:27:07,957 INFO L858 garLoopResultBuilder]: For program point L377(lines 377 385) no Hoare annotation was computed. [2021-11-22 14:27:07,957 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2021-11-22 14:27:07,957 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 392) no Hoare annotation was computed. [2021-11-22 14:27:07,958 INFO L858 garLoopResultBuilder]: For program point L392(line 392) no Hoare annotation was computed. [2021-11-22 14:27:07,958 INFO L858 garLoopResultBuilder]: For program point L2(lines 2 4) no Hoare annotation was computed. [2021-11-22 14:27:07,958 INFO L858 garLoopResultBuilder]: For program point L386(lines 386 393) no Hoare annotation was computed. [2021-11-22 14:27:07,961 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-22 14:27:07,963 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:27:07,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:27:07 BoogieIcfgContainer [2021-11-22 14:27:07,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:27:07,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:27:07,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:27:07,972 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:27:07,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:03" (3/4) ... [2021-11-22 14:27:07,974 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 14:27:07,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-22 14:27:07,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-22 14:27:07,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 14:27:07,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 14:27:08,019 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:27:08,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:27:08,020 INFO L158 Benchmark]: Toolchain (without parser) took 189530.21ms. Allocated memory was 58.7MB in the beginning and 100.7MB in the end (delta: 41.9MB). Free memory was 35.0MB in the beginning and 39.2MB in the end (delta: -4.2MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2021-11-22 14:27:08,021 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:27:08,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1072.83ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 34.8MB in the beginning and 51.4MB in the end (delta: -16.6MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-11-22 14:27:08,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.36ms. Allocated memory is still 83.9MB. Free memory was 51.4MB in the beginning and 49.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:27:08,022 INFO L158 Benchmark]: Boogie Preprocessor took 58.93ms. Allocated memory is still 83.9MB. Free memory was 49.0MB in the beginning and 47.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:27:08,023 INFO L158 Benchmark]: RCFGBuilder took 4167.20ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 61.2MB in the end (delta: -13.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-11-22 14:27:08,023 INFO L158 Benchmark]: TraceAbstraction took 184090.19ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.8MB in the beginning and 42.2MB in the end (delta: 18.6MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2021-11-22 14:27:08,024 INFO L158 Benchmark]: Witness Printer took 48.60ms. Allocated memory is still 100.7MB. Free memory was 42.2MB in the beginning and 39.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:27:08,026 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1072.83ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 34.8MB in the beginning and 51.4MB in the end (delta: -16.6MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.36ms. Allocated memory is still 83.9MB. Free memory was 51.4MB in the beginning and 49.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.93ms. Allocated memory is still 83.9MB. Free memory was 49.0MB in the beginning and 47.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4167.20ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 61.2MB in the end (delta: -13.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * TraceAbstraction took 184090.19ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.8MB in the beginning and 42.2MB in the end (delta: 18.6MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. * Witness Printer took 48.60ms. Allocated memory is still 100.7MB. Free memory was 42.2MB in the beginning and 39.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 384]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 392]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 184.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 12.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 51 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 80.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 145.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 5 QuantifiedInterpolants, 523 SizeOfPredicates, 15 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-22 14:27:08,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2746928e-9cbc-4929-bf3e-cb0479e06c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE