./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G --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 ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:35:24,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:35:24,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:35:24,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:35:24,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:35:24,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:35:24,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:35:24,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:35:24,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:35:24,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:35:24,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:35:24,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:35:24,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:35:24,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:35:24,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:35:24,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:35:24,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:35:24,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:35:24,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:35:24,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:35:24,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:35:24,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:35:24,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:35:24,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:35:24,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:35:24,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:35:24,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:35:24,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:35:24,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:35:24,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:35:24,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:35:24,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:35:24,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:35:24,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:35:24,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:35:24,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:35:24,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:35:24,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:35:24,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:35:24,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:35:24,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:35:24,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:35:24,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:35:24,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:35:24,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:35:24,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:35:24,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:35:24,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:35:24,755 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:35:24,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:35:24,755 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:35:24,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:35:24,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:35:24,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:35:24,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:35:24,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:35:24,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:35:24,758 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:35:24,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:35:24,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:35:24,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:35:24,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:35:24,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:35:24,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:35:24,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:35:24,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:35:24,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:35:24,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:35:24,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:35:24,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:35:24,762 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:35:24,762 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:35:24,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:35:24,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:35:24,763 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_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a [2021-11-23 13:35:25,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:35:25,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:35:25,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:35:25,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:35:25,203 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:35:25,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2021-11-23 13:35:25,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data/13e159a00/ecd594db3a394358aa85e8dafb78a630/FLAG6b11ede26 [2021-11-23 13:35:25,859 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:35:25,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2021-11-23 13:35:25,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data/13e159a00/ecd594db3a394358aa85e8dafb78a630/FLAG6b11ede26 [2021-11-23 13:35:26,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data/13e159a00/ecd594db3a394358aa85e8dafb78a630 [2021-11-23 13:35:26,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:35:26,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:35:26,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:35:26,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:35:26,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:35:26,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b71c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26, skipping insertion in model container [2021-11-23 13:35:26,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:35:26,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:35:26,489 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_034f9169-eef4-445d-900f-516e15eda9fb/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2021-11-23 13:35:26,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:35:26,514 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:35:26,592 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_034f9169-eef4-445d-900f-516e15eda9fb/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2021-11-23 13:35:26,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:35:26,622 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:35:26,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26 WrapperNode [2021-11-23 13:35:26,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:35:26,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:35:26,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:35:26,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:35:26,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,699 INFO L137 Inliner]: procedures = 18, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2021-11-23 13:35:26,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:35:26,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:35:26,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:35:26,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:35:26,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:35:26,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:35:26,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:35:26,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:35:26,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (1/1) ... [2021-11-23 13:35:26,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:35:26,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:26,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:26,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:35:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:35:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:35:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:35:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 13:35:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:35:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 13:35:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:35:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:35:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:35:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:35:26,988 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:35:26,989 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:35:27,280 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:35:27,286 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:35:27,286 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-23 13:35:27,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:27 BoogieIcfgContainer [2021-11-23 13:35:27,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:35:27,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:35:27,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:35:27,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:35:27,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:35:26" (1/3) ... [2021-11-23 13:35:27,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e916f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:35:27, skipping insertion in model container [2021-11-23 13:35:27,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:26" (2/3) ... [2021-11-23 13:35:27,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e916f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:35:27, skipping insertion in model container [2021-11-23 13:35:27,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:27" (3/3) ... [2021-11-23 13:35:27,313 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2021-11-23 13:35:27,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:35:27,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:35:27,388 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:35:27,404 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 [2021-11-23 13:35:27,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:35:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-23 13:35:27,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 13:35:27,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:27,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:27,443 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:27,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:27,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-11-23 13:35:27,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:27,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566832025] [2021-11-23 13:35:27,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:27,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:27,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:27,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566832025] [2021-11-23 13:35:27,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566832025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:27,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:35:27,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:35:27,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813345689] [2021-11-23 13:35:27,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:27,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:35:27,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:27,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:35:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:35:27,729 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-23 13:35:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:27,749 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-11-23 13:35:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:35:27,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 [2021-11-23 13:35:27,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:27,763 INFO L225 Difference]: With dead ends: 56 [2021-11-23 13:35:27,764 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 13:35:27,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:35:27,772 INFO L933 BasicCegarLoop]: 39 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, 39 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 [2021-11-23 13:35:27,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:35:27,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 13:35:27,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 13:35:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 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) [2021-11-23 13:35:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-11-23 13:35:27,814 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-11-23 13:35:27,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:27,815 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-11-23 13:35:27,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-23 13:35:27,816 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-23 13:35:27,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:35:27,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:27,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:27,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:35:27,818 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-11-23 13:35:27,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:27,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977778331] [2021-11-23 13:35:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:27,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:27,866 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:35:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:27,929 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:35:27,929 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:35:27,931 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:35:27,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:35:27,946 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 13:35:27,953 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:35:28,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:35:28 BoogieIcfgContainer [2021-11-23 13:35:28,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:35:28,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:35:28,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:35:28,013 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:35:28,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:27" (3/4) ... [2021-11-23 13:35:28,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:35:28,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:35:28,019 INFO L158 Benchmark]: Toolchain (without parser) took 1855.31ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 69.2MB in the beginning and 62.2MB in the end (delta: 7.0MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2021-11-23 13:35:28,020 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 90.2MB. Free memory was 66.6MB in the beginning and 66.6MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:35:28,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.85ms. Allocated memory is still 90.2MB. Free memory was 69.0MB in the beginning and 63.7MB in the end (delta: 5.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:35:28,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.51ms. Allocated memory is still 90.2MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:35:28,022 INFO L158 Benchmark]: Boogie Preprocessor took 62.19ms. Allocated memory is still 90.2MB. Free memory was 61.7MB in the beginning and 60.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:35:28,023 INFO L158 Benchmark]: RCFGBuilder took 528.07ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 47.6MB in the end (delta: 12.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:35:28,024 INFO L158 Benchmark]: TraceAbstraction took 715.41ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 47.2MB in the beginning and 62.5MB in the end (delta: -15.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-11-23 13:35:28,024 INFO L158 Benchmark]: Witness Printer took 7.26ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 62.2MB in the end (delta: 292.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:35:28,029 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 90.2MB. Free memory was 66.6MB in the beginning and 66.6MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.85ms. Allocated memory is still 90.2MB. Free memory was 69.0MB in the beginning and 63.7MB in the end (delta: 5.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.51ms. Allocated memory is still 90.2MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.19ms. Allocated memory is still 90.2MB. Free memory was 61.7MB in the beginning and 60.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 528.07ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 47.6MB in the end (delta: 12.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 715.41ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 47.2MB in the beginning and 62.5MB in the end (delta: -15.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 7.26ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 62.2MB in the end (delta: 292.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 142]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 129, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L137] double x = 0.0 / 0.0; [L138] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [\old(x)=18014398509481987, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481987, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [\old(x)=18014398509481987, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [\old(x)=18014398509481987, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [\old(x)=18014398509481987, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L138] RET, EXPR __ieee754_log(x) [L138] double res = __ieee754_log(x); [L141] CALL, EXPR isnan_double(res) [L129] return x != x; VAL [\old(x)=18014398509481986, \result=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481986, zero=0] [L141] RET, EXPR isnan_double(res) [L141] COND TRUE !isnan_double(res) [L142] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=18014398509481986, two54_log=18014398509481984, x=18014398509481987, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 39 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-23 13:35:28,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G --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 ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:35:30,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:35:30,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:35:30,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:35:30,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:35:30,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:35:30,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:35:30,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:35:30,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:35:30,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:35:30,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:35:30,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:35:30,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:35:30,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:35:30,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:35:30,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:35:30,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:35:30,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:35:30,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:35:30,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:35:30,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:35:30,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:35:30,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:35:30,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:35:30,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:35:30,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:35:30,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:35:30,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:35:30,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:35:30,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:35:30,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:35:30,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:35:30,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:35:30,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:35:30,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:35:30,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:35:30,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:35:30,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:35:30,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:35:30,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:35:30,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:35:30,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 13:35:30,904 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:35:30,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:35:30,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:35:30,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:35:30,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:35:30,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:35:30,909 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:35:30,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:35:30,909 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:35:30,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:35:30,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:35:30,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:35:30,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:35:30,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:35:30,912 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:35:30,912 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 13:35:30,912 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 13:35:30,913 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:35:30,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:35:30,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:35:30,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:35:30,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:35:30,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:35:30,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:35:30,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:35:30,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:35:30,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:35:30,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:35:30,916 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 13:35:30,916 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 13:35:30,916 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:35:30,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:35:30,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:35:30,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:35:30,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 13:35:30,918 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_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a [2021-11-23 13:35:31,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:35:31,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:35:31,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:35:31,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:35:31,437 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:35:31,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2021-11-23 13:35:31,511 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data/16292e967/4ef9f2f13af449ba8f04144d3f747b99/FLAG0b27943a9 [2021-11-23 13:35:32,089 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:35:32,090 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2021-11-23 13:35:32,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data/16292e967/4ef9f2f13af449ba8f04144d3f747b99/FLAG0b27943a9 [2021-11-23 13:35:32,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/data/16292e967/4ef9f2f13af449ba8f04144d3f747b99 [2021-11-23 13:35:32,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:35:32,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:35:32,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:35:32,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:35:32,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:35:32,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f981389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32, skipping insertion in model container [2021-11-23 13:35:32,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:35:32,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:35:32,659 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_034f9169-eef4-445d-900f-516e15eda9fb/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2021-11-23 13:35:32,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:35:32,684 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:35:32,773 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_034f9169-eef4-445d-900f-516e15eda9fb/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2021-11-23 13:35:32,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:35:32,805 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:35:32,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32 WrapperNode [2021-11-23 13:35:32,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:35:32,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:35:32,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:35:32,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:35:32,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,889 INFO L137 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2021-11-23 13:35:32,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:35:32,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:35:32,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:35:32,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:35:32,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:35:32,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:35:32,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:35:32,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:35:32,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (1/1) ... [2021-11-23 13:35:32,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:35:32,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:33,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:33,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:35:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:35:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-23 13:35:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-23 13:35:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 13:35:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:35:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 13:35:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:35:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:35:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 13:35:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:35:33,239 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:35:33,246 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:35:57,105 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:35:57,111 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:35:57,112 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-23 13:35:57,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:57 BoogieIcfgContainer [2021-11-23 13:35:57,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:35:57,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:35:57,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:35:57,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:35:57,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:35:32" (1/3) ... [2021-11-23 13:35:57,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b891a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:35:57, skipping insertion in model container [2021-11-23 13:35:57,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:32" (2/3) ... [2021-11-23 13:35:57,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b891a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:35:57, skipping insertion in model container [2021-11-23 13:35:57,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:57" (3/3) ... [2021-11-23 13:35:57,151 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2021-11-23 13:35:57,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:35:57,164 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:35:57,223 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:35:57,237 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 [2021-11-23 13:35:57,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:35:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-23 13:35:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 13:35:57,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:57,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:57,273 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:57,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-11-23 13:35:57,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:35:57,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291868518] [2021-11-23 13:35:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:57,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:35:57,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:35:57,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:35:57,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 13:35:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:58,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 13:35:58,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:58,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:35:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:58,757 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:35:58,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291868518] [2021-11-23 13:35:58,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291868518] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:58,759 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:35:58,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 13:35:58,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719563315] [2021-11-23 13:35:58,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:58,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:35:58,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:35:58,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:35:58,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:35:58,818 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-23 13:35:58,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:58,843 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-11-23 13:35:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:35:58,846 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 [2021-11-23 13:35:58,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:58,858 INFO L225 Difference]: With dead ends: 56 [2021-11-23 13:35:58,858 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 13:35:58,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:35:58,865 INFO L933 BasicCegarLoop]: 39 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, 39 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 [2021-11-23 13:35:58,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:35:58,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 13:35:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 13:35:58,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 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) [2021-11-23 13:35:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-11-23 13:35:58,901 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-11-23 13:35:58,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:58,901 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-11-23 13:35:58,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-23 13:35:58,902 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-23 13:35:58,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:35:58,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:58,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:58,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:59,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:35:59,122 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:59,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:59,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-11-23 13:35:59,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:35:59,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313094126] [2021-11-23 13:35:59,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:59,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:35:59,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:35:59,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:35:59,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 13:36:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:00,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 13:36:00,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:01,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:01,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:01,977 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:01,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313094126] [2021-11-23 13:36:01,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313094126] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:01,978 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:01,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 13:36:01,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665453399] [2021-11-23 13:36:01,979 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:01,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:36:01,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:01,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:36:01,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:36:01,982 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-11-23 13:36:01,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:01,995 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-11-23 13:36:01,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:36:01,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 [2021-11-23 13:36:01,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:01,997 INFO L225 Difference]: With dead ends: 31 [2021-11-23 13:36:01,997 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 13:36:01,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:36:02,000 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:02,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2021-11-23 13:36:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 13:36:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 13:36:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 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) [2021-11-23 13:36:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2021-11-23 13:36:02,008 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 11 [2021-11-23 13:36:02,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:02,009 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-11-23 13:36:02,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-11-23 13:36:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-11-23 13:36:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:36:02,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:02,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:02,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:02,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:02,234 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:02,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:02,235 INFO L85 PathProgramCache]: Analyzing trace with hash -594923761, now seen corresponding path program 1 times [2021-11-23 13:36:02,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:02,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85958196] [2021-11-23 13:36:02,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:02,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:02,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:02,237 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:02,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 13:36:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:02,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:36:02,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:03,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:03,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:07,111 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:07,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85958196] [2021-11-23 13:36:07,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85958196] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:07,111 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:07,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-23 13:36:07,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389639153] [2021-11-23 13:36:07,112 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:07,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:36:07,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:07,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:36:07,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:36:07,114 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2021-11-23 13:36:10,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:16,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:18,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:20,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:22,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:25,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:27,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:30,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:32,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:34,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:36,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:38,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:40,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:42,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:44,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:47,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:49,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:51,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:53,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:55,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:57,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:36:57,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:57,683 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-11-23 13:36:57,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:36:57,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 [2021-11-23 13:36:57,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:57,685 INFO L225 Difference]: With dead ends: 36 [2021-11-23 13:36:57,685 INFO L226 Difference]: Without dead ends: 31 [2021-11-23 13:36:57,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:36:57,687 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:57,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 107 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 21 Unknown, 0 Unchecked, 49.9s Time] [2021-11-23 13:36:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-23 13:36:57,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-11-23 13:36:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:57,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2021-11-23 13:36:57,700 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 11 [2021-11-23 13:36:57,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:57,701 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-11-23 13:36:57,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2021-11-23 13:36:57,702 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2021-11-23 13:36:57,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:36:57,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:57,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:57,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:57,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:57,904 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:36:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2021-11-23 13:36:57,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:57,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348374705] [2021-11-23 13:36:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:57,905 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:57,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:57,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:57,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 13:36:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:58,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 13:36:58,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:00,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:08,123 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start___ieee754_log_~x#1| |c_ULTIMATE.start___ieee754_log_~x#1|) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from false [2021-11-23 13:37:10,352 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start___ieee754_log_~x#1| |c_ULTIMATE.start___ieee754_log_~x#1|) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from true [2021-11-23 13:37:32,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:32,338 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:37:32,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348374705] [2021-11-23 13:37:32,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348374705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:32,339 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:32,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-23 13:37:32,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002394324] [2021-11-23 13:37:32,339 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:32,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:37:32,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:37:32,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:37:32,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=54, Unknown=2, NotChecked=14, Total=90 [2021-11-23 13:37:32,340 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2021-11-23 13:37:40,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:37:43,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:37:45,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:37:47,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:37:50,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:37:52,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:37:54,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:37:56,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:37:59,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:38:01,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:38:03,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:38:05,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:38:08,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:38:10,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:38:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:10,335 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2021-11-23 13:38:10,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:38:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 13:38:10,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:10,337 INFO L225 Difference]: With dead ends: 36 [2021-11-23 13:38:10,337 INFO L226 Difference]: Without dead ends: 31 [2021-11-23 13:38:10,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=44, Invalid=90, Unknown=2, NotChecked=20, Total=156 [2021-11-23 13:38:10,339 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 32 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:10,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 124 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 14 Unknown, 26 Unchecked, 36.7s Time] [2021-11-23 13:38:10,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-23 13:38:10,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-11-23 13:38:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-23 13:38:10,346 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 12 [2021-11-23 13:38:10,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:10,347 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-23 13:38:10,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2021-11-23 13:38:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-23 13:38:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 13:38:10,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:38:10,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:38:10,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:10,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:38:10,558 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:38:10,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:38:10,559 INFO L85 PathProgramCache]: Analyzing trace with hash 464451163, now seen corresponding path program 1 times [2021-11-23 13:38:10,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:38:10,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4397029] [2021-11-23 13:38:10,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:38:10,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:38:10,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:38:10,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:38:10,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 13:38:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:38:10,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:38:10,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:38:12,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:12,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:38:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:17,572 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:38:17,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4397029] [2021-11-23 13:38:17,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4397029] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:38:17,572 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:38:17,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:38:17,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599008084] [2021-11-23 13:38:17,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:38:17,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:38:17,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:38:17,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:38:17,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2021-11-23 13:38:17,574 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2021-11-23 13:38:19,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:38:23,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:38:23,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:23,620 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2021-11-23 13:38:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:38:24,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 17 [2021-11-23 13:38:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:24,219 INFO L225 Difference]: With dead ends: 47 [2021-11-23 13:38:24,219 INFO L226 Difference]: Without dead ends: 31 [2021-11-23 13:38:24,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2021-11-23 13:38:24,221 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:24,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 111 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 2 Unknown, 11 Unchecked, 6.0s Time] [2021-11-23 13:38:24,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-23 13:38:24,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-11-23 13:38:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2021-11-23 13:38:24,227 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 17 [2021-11-23 13:38:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:24,228 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2021-11-23 13:38:24,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2021-11-23 13:38:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2021-11-23 13:38:24,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 13:38:24,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:38:24,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:38:24,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:24,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:38:24,431 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:38:24,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:38:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2124593878, now seen corresponding path program 1 times [2021-11-23 13:38:24,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:38:24,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177247934] [2021-11-23 13:38:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:38:24,432 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:38:24,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:38:24,433 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:38:24,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 13:38:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:38:24,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:38:24,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:38:26,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:26,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:38:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:28,563 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:38:28,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177247934] [2021-11-23 13:38:28,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177247934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:38:28,564 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:38:28,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:38:28,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292117037] [2021-11-23 13:38:28,564 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:38:28,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:38:28,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:38:28,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:38:28,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:38:28,566 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:28,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:28,768 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2021-11-23 13:38:28,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:38:28,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-23 13:38:28,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:28,769 INFO L225 Difference]: With dead ends: 26 [2021-11-23 13:38:28,770 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 13:38:28,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:38:28,771 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:28,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 4 Unchecked, 0.2s Time] [2021-11-23 13:38:28,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 13:38:28,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 13:38:28,772 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) [2021-11-23 13:38:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:38:28,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-11-23 13:38:28,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:28,772 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:38:28,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:38:28,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 13:38:28,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:38:28,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:28,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:38:28,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 13:38:30,525 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-11-23 13:38:30,525 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-11-23 13:38:30,525 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-11-23 13:38:30,526 INFO L854 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|)) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 13:38:30,526 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-11-23 13:38:30,526 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 13:38:30,526 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 13:38:30,526 INFO L858 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-11-23 13:38:30,526 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 13:38:30,526 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2021-11-23 13:38:30,526 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-11-23 13:38:30,526 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-11-23 13:38:30,527 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-11-23 13:38:30,527 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-11-23 13:38:30,527 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-11-23 13:38:30,527 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 13:38:30,527 INFO L854 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log_#res#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 13:38:30,527 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-11-23 13:38:30,527 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 144) no Hoare annotation was computed. [2021-11-23 13:38:30,528 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-11-23 13:38:30,528 INFO L854 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-11-23 13:38:30,528 INFO L854 garLoopResultBuilder]: At program point L129(line 129) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log_#res#1|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 13:38:30,528 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-11-23 13:38:30,528 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-11-23 13:38:30,529 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-11-23 13:38:30,529 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-11-23 13:38:30,529 INFO L861 garLoopResultBuilder]: At program point L146(lines 131 147) the Hoare annotation is: true [2021-11-23 13:38:30,529 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-11-23 13:38:30,529 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-11-23 13:38:30,532 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-23 13:38:30,533 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:38:30,540 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:38:30,543 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,546 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:38:30,549 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,550 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,551 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,551 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,551 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,552 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,552 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,552 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,552 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,554 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:38:30 BoogieIcfgContainer [2021-11-23 13:38:30,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:38:30,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:38:30,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:38:30,555 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:38:30,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:57" (3/4) ... [2021-11-23 13:38:30,559 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 13:38:30,586 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-23 13:38:30,587 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 13:38:30,587 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 13:38:30,587 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 13:38:30,617 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 13:38:30,617 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 13:38:30,618 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 13:38:30,647 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:38:30,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:38:30,648 INFO L158 Benchmark]: Toolchain (without parser) took 178226.12ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 34.5MB in the beginning and 41.3MB in the end (delta: -6.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2021-11-23 13:38:30,649 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 37.8MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:38:30,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.68ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 34.3MB in the beginning and 56.2MB in the end (delta: -21.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 13:38:30,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.19ms. Allocated memory is still 75.5MB. Free memory was 56.2MB in the beginning and 54.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:38:30,655 INFO L158 Benchmark]: Boogie Preprocessor took 67.72ms. Allocated memory is still 75.5MB. Free memory was 54.2MB in the beginning and 52.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:38:30,656 INFO L158 Benchmark]: RCFGBuilder took 24183.91ms. Allocated memory is still 75.5MB. Free memory was 52.3MB in the beginning and 57.4MB in the end (delta: -5.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-11-23 13:38:30,656 INFO L158 Benchmark]: TraceAbstraction took 153409.82ms. Allocated memory is still 75.5MB. Free memory was 57.1MB in the beginning and 46.4MB in the end (delta: 10.6MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-11-23 13:38:30,657 INFO L158 Benchmark]: Witness Printer took 92.97ms. Allocated memory is still 75.5MB. Free memory was 46.4MB in the beginning and 41.3MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 13:38:30,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 37.8MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.68ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 34.3MB in the beginning and 56.2MB in the end (delta: -21.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.19ms. Allocated memory is still 75.5MB. Free memory was 56.2MB in the beginning and 54.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.72ms. Allocated memory is still 75.5MB. Free memory was 54.2MB in the beginning and 52.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 24183.91ms. Allocated memory is still 75.5MB. Free memory was 52.3MB in the beginning and 57.4MB in the end (delta: -5.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 153409.82ms. Allocated memory is still 75.5MB. Free memory was 57.1MB in the beginning and 46.4MB in the end (delta: 10.6MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 92.97ms. Allocated memory is still 75.5MB. Free memory was 46.4MB in the beginning and 41.3MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 142]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 153.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 95.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 37 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 92.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 492 SdHoareTripleChecker+Invalid, 89.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 66 IncrementalHoareTripleChecker+Unchecked, 347 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 145 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 17.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 64 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 50.9s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 152 ConstructedInterpolants, 23 QuantifiedInterpolants, 925 SizeOfPredicates, 41 NumberOfNonLiveVariables, 341 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant [2021-11-23 13:38:30,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:38:30,683 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 13:38:30,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant [2021-11-23 13:38:30,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant [2021-11-23 13:38:30,688 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,700 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,700 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,700 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:38:30,701 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 13:38:30,934 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-23 13:38:31,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034f9169-eef4-445d-900f-516e15eda9fb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE