./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/fdim.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/fdim.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3 --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 cc3f75e5c316a5f090e4557f04dd9c8106a1ddce ....................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/fdim.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3 --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 cc3f75e5c316a5f090e4557f04dd9c8106a1ddce ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:35:34,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:35:34,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:35:34,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:35:34,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:35:34,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:35:34,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:35:34,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:35:34,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:35:34,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:35:34,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:35:34,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:35:34,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:35:34,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:35:34,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:35:34,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:35:34,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:35:34,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:35:34,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:35:34,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:35:34,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:35:34,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:35:34,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:35:34,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:35:34,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:35:34,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:35:34,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:35:34,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:35:34,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:35:34,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:35:34,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:35:34,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:35:34,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:35:34,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:35:34,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:35:34,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:35:34,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:35:34,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:35:34,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:35:34,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:35:34,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:35:34,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:35:34,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:35:34,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:35:34,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:35:34,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:35:34,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:35:34,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:35:34,539 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:35:34,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:35:34,539 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:35:34,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:35:34,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:35:34,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:35:34,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:35:34,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:35:34,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:35:34,542 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:35:34,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:35:34,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:35:34,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:35:34,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:35:34,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:35:34,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:35:34,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:35:34,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:35:34,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:35:34,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:35:34,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:35:34,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:35:34,545 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:35:34,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:35:34,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:35:34,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:35:34,546 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_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc3f75e5c316a5f090e4557f04dd9c8106a1ddce [2021-10-15 19:35:34,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:35:34,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:35:34,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:35:34,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:35:34,839 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:35:34,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-10-15 19:35:34,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data/2e641692c/6c12557fc943471f8f9d4fb14acfdaab/FLAG33422ecf9 [2021-10-15 19:35:35,446 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:35:35,447 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-10-15 19:35:35,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data/2e641692c/6c12557fc943471f8f9d4fb14acfdaab/FLAG33422ecf9 [2021-10-15 19:35:35,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data/2e641692c/6c12557fc943471f8f9d4fb14acfdaab [2021-10-15 19:35:35,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:35:35,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:35:35,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:35:35,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:35:35,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:35:35,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:35:35" (1/1) ... [2021-10-15 19:35:35,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463bffba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:35, skipping insertion in model container [2021-10-15 19:35:35,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:35:35" (1/1) ... [2021-10-15 19:35:35,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:35:35,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:35:36,345 WARN L228 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_380ffaf6-f454-438b-b873-88b6f6ed29f2/sv-benchmarks/c/floats-esbmc-regression/fdim.i[36279,36292] [2021-10-15 19:35:36,365 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: fdim at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1702) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) 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:712) 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:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1415) 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:1359) 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:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) 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:3218) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) 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) [2021-10-15 19:35:36,374 INFO L168 Benchmark]: Toolchain (without parser) took 652.70 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.0 MB in the beginning and 79.7 MB in the end (delta: -29.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:36,375 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 88.1 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:35:36,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.70 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 79.7 MB in the end (delta: -29.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:36,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 88.1 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 634.70 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 79.7 MB in the end (delta: -29.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:35:38,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:35:38,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:35:38,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:35:38,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:35:38,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:35:38,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:35:38,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:35:38,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:35:38,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:35:38,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:35:38,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:35:38,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:35:38,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:35:38,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:35:38,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:35:38,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:35:38,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:35:38,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:35:38,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:35:38,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:35:38,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:35:38,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:35:38,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:35:38,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:35:38,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:35:38,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:35:38,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:35:38,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:35:38,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:35:38,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:35:38,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:35:38,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:35:38,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:35:38,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:35:38,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:35:38,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:35:38,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:35:38,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:35:38,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:35:38,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:35:38,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-15 19:35:38,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:35:38,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:35:38,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:35:38,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:35:38,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:35:38,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:35:38,914 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:35:38,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:35:38,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:35:38,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:35:38,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:35:38,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:35:38,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:35:38,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:35:38,918 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 19:35:38,918 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 19:35:38,918 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:35:38,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:35:38,919 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:35:38,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:35:38,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:35:38,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:35:38,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:35:38,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:35:38,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:35:38,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:35:38,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:35:38,922 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 19:35:38,922 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 19:35:38,922 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:35:38,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:35:38,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:35:38,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:35:38,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 19:35:38,924 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_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc3f75e5c316a5f090e4557f04dd9c8106a1ddce [2021-10-15 19:35:39,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:35:39,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:35:39,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:35:39,381 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:35:39,382 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:35:39,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-10-15 19:35:39,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data/cc5bc49da/986b48b0be844497b98d25a326e44e8a/FLAG604e30657 [2021-10-15 19:35:40,106 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:35:40,107 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-10-15 19:35:40,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data/cc5bc49da/986b48b0be844497b98d25a326e44e8a/FLAG604e30657 [2021-10-15 19:35:40,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/data/cc5bc49da/986b48b0be844497b98d25a326e44e8a [2021-10-15 19:35:40,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:35:40,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:35:40,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:35:40,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:35:40,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:35:40,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:35:40" (1/1) ... [2021-10-15 19:35:40,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f16640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:40, skipping insertion in model container [2021-10-15 19:35:40,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:35:40" (1/1) ... [2021-10-15 19:35:40,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:35:40,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:35:41,007 WARN L228 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_380ffaf6-f454-438b-b873-88b6f6ed29f2/sv-benchmarks/c/floats-esbmc-regression/fdim.i[36279,36292] [2021-10-15 19:35:41,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:35:41,061 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:35:41,119 WARN L228 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_380ffaf6-f454-438b-b873-88b6f6ed29f2/sv-benchmarks/c/floats-esbmc-regression/fdim.i[36279,36292] [2021-10-15 19:35:41,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:35:41,303 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:35:41,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41 WrapperNode [2021-10-15 19:35:41,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:35:41,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:35:41,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:35:41,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:35:41,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:35:41,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:35:41,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:35:41,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:35:41,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:35:41,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:35:41,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:35:41,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:35:41,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (1/1) ... [2021-10-15 19:35:41,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:35:41,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:35:41,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:35:41,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:35:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-15 19:35:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:35:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:35:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:35:41,930 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:35:41,930 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-15 19:35:41,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:35:41 BoogieIcfgContainer [2021-10-15 19:35:41,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:35:41,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:35:41,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:35:41,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:35:41,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:35:40" (1/3) ... [2021-10-15 19:35:41,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:35:41, skipping insertion in model container [2021-10-15 19:35:41,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:35:41" (2/3) ... [2021-10-15 19:35:41,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:35:41, skipping insertion in model container [2021-10-15 19:35:41,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:35:41" (3/3) ... [2021-10-15 19:35:41,941 INFO L111 eAbstractionObserver]: Analyzing ICFG fdim.i [2021-10-15 19:35:41,947 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:35:41,947 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-15 19:35:42,030 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:35:42,052 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, mConcurrency=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 [2021-10-15 19:35:42,053 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-15 19:35:42,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 28 transitions, 56 flow [2021-10-15 19:35:42,086 INFO L129 PetriNetUnfolder]: 5/28 cut-off events. [2021-10-15 19:35:42,086 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:35:42,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 28 events. 5/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-15 19:35:42,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 28 transitions, 56 flow [2021-10-15 19:35:42,093 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 24 transitions, 48 flow [2021-10-15 19:35:42,095 INFO L129 PetriNetUnfolder]: 1/6 cut-off events. [2021-10-15 19:35:42,096 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:35:42,096 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:35:42,097 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-10-15 19:35:42,097 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-15 19:35:42,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:35:42,103 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-15 19:35:42,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:35:42,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985316614] [2021-10-15 19:35:42,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:35:42,142 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:35:42,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:35:42,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:35:42,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 19:35:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:35:42,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 19:35:42,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:35:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:35:43,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:35:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:35:43,195 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:35:43,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985316614] [2021-10-15 19:35:43,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985316614] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:35:43,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:35:43,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-15 19:35:43,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992522630] [2021-10-15 19:35:43,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:35:43,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:35:43,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:35:43,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:35:43,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2021-10-15 19:35:43,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 24 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2021-10-15 19:35:43,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:35:43,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2021-10-15 19:35:43,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:35:43,366 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-10-15 19:35:43,367 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:35:43,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-10-15 19:35:43,368 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 8 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2021-10-15 19:35:43,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 12 transitions, 44 flow [2021-10-15 19:35:43,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:35:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:35:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2021-10-15 19:35:43,380 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2021-10-15 19:35:43,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 38 transitions. [2021-10-15 19:35:43,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 38 transitions. [2021-10-15 19:35:43,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:35:43,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 38 transitions. [2021-10-15 19:35:43,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-10-15 19:35:43,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2021-10-15 19:35:43,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2021-10-15 19:35:43,396 INFO L186 Difference]: Start difference. First operand has 21 places, 24 transitions, 48 flow. Second operand 3 states and 38 transitions. [2021-10-15 19:35:43,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 12 transitions, 44 flow [2021-10-15 19:35:43,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 12 transitions, 44 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:35:43,401 INFO L242 Difference]: Finished difference. Result has 15 places, 12 transitions, 28 flow [2021-10-15 19:35:43,403 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=28, PETRI_PLACES=15, PETRI_TRANSITIONS=12} [2021-10-15 19:35:43,404 INFO L334 CegarLoopForPetriNet]: 21 programPoint places, -6 predicate places. [2021-10-15 19:35:43,404 INFO L470 AbstractCegarLoop]: Abstraction has has 15 places, 12 transitions, 28 flow [2021-10-15 19:35:43,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2021-10-15 19:35:43,404 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:35:43,404 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:35:43,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:35:43,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:35:43,608 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-15 19:35:43,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:35:43,609 INFO L82 PathProgramCache]: Analyzing trace with hash -565231631, now seen corresponding path program 1 times [2021-10-15 19:35:43,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:35:43,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037256077] [2021-10-15 19:35:43,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:35:43,610 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:35:43,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:35:43,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:35:43,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-15 19:35:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:35:43,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:35:43,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:35:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:35:44,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:35:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:35:46,064 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:35:46,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037256077] [2021-10-15 19:35:46,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037256077] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:35:46,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:35:46,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-15 19:35:46,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168022070] [2021-10-15 19:35:46,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-15 19:35:46,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:35:46,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:35:46,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:35:46,068 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2021-10-15 19:35:46,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 12 transitions, 28 flow. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2021-10-15 19:35:46,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:35:46,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2021-10-15 19:35:46,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:35:46,163 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-10-15 19:35:46,163 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:35:46,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-10-15 19:35:46,163 INFO L132 encePairwiseOnDemand]: 25/28 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-10-15 19:35:46,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 10 transitions, 44 flow [2021-10-15 19:35:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:35:46,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-15 19:35:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2021-10-15 19:35:46,171 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3482142857142857 [2021-10-15 19:35:46,171 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 39 transitions. [2021-10-15 19:35:46,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 39 transitions. [2021-10-15 19:35:46,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:35:46,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 39 transitions. [2021-10-15 19:35:46,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-10-15 19:35:46,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2021-10-15 19:35:46,173 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2021-10-15 19:35:46,174 INFO L186 Difference]: Start difference. First operand has 15 places, 12 transitions, 28 flow. Second operand 4 states and 39 transitions. [2021-10-15 19:35:46,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 10 transitions, 44 flow [2021-10-15 19:35:46,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 10 transitions, 40 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 19:35:46,175 INFO L242 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-10-15 19:35:46,175 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2021-10-15 19:35:46,176 INFO L334 CegarLoopForPetriNet]: 21 programPoint places, -7 predicate places. [2021-10-15 19:35:46,176 INFO L470 AbstractCegarLoop]: Abstraction has has 14 places, 0 transitions, 0 flow [2021-10-15 19:35:46,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2021-10-15 19:35:46,178 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:35:46,179 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:35:46,179 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:35:46,179 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:35:46,180 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:35:46,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:35:46,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:35:46,398 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:35:46,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:35:46 BoogieIcfgContainer [2021-10-15 19:35:46,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:35:46,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:35:46,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:35:46,403 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:35:46,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:35:41" (3/4) ... [2021-10-15 19:35:46,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:35:46,416 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-15 19:35:46,417 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-15 19:35:46,417 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 19:35:46,417 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:35:46,418 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:35:46,459 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:35:46,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:35:46,467 INFO L168 Benchmark]: Toolchain (without parser) took 6112.06 ms. Allocated memory was 58.7 MB in the beginning and 100.7 MB in the end (delta: 41.9 MB). Free memory was 35.4 MB in the beginning and 35.1 MB in the end (delta: 250.2 kB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:46,467 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:35:46,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 947.12 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 35.2 MB in the beginning and 56.8 MB in the end (delta: -21.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:46,468 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.72 ms. Allocated memory is still 81.8 MB. Free memory was 56.8 MB in the beginning and 54.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:46,469 INFO L168 Benchmark]: Boogie Preprocessor took 52.73 ms. Allocated memory is still 81.8 MB. Free memory was 54.1 MB in the beginning and 52.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:35:46,470 INFO L168 Benchmark]: RCFGBuilder took 468.75 ms. Allocated memory is still 81.8 MB. Free memory was 52.9 MB in the beginning and 42.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:46,470 INFO L168 Benchmark]: TraceAbstraction took 4467.79 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 42.1 MB in the beginning and 38.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:46,471 INFO L168 Benchmark]: Witness Printer took 62.21 ms. Allocated memory is still 100.7 MB. Free memory was 38.1 MB in the beginning and 35.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:46,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 947.12 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 35.2 MB in the beginning and 56.8 MB in the end (delta: -21.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.72 ms. Allocated memory is still 81.8 MB. Free memory was 56.8 MB in the beginning and 54.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.73 ms. Allocated memory is still 81.8 MB. Free memory was 54.1 MB in the beginning and 52.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 468.75 ms. Allocated memory is still 81.8 MB. Free memory was 52.9 MB in the beginning and 42.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4467.79 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 42.1 MB in the beginning and 38.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. * Witness Printer took 62.21 ms. Allocated memory is still 100.7 MB. Free memory was 38.1 MB in the beginning and 35.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: 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, 24 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4373.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 287.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 40.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 17 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 170.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 356.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.9ms SsaConstructionTime, 131.5ms SatisfiabilityAnalysisTime, 3250.8ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 5 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:35:46,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_380ffaf6-f454-438b-b873-88b6f6ed29f2/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...