./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa --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 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:22:30,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:22:30,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:22:30,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:22:30,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:22:30,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:22:30,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:22:30,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:22:30,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:22:30,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:22:30,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:22:30,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:22:30,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:22:30,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:22:30,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:22:30,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:22:30,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:22:30,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:22:30,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:22:30,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:22:30,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:22:30,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:22:30,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:22:30,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:22:30,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:22:30,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:22:30,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:22:30,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:22:30,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:22:30,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:22:30,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:22:30,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:22:30,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:22:30,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:22:30,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:22:30,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:22:30,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:22:30,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:22:30,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:22:30,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:22:30,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:22:30,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:22:30,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:22:30,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:22:30,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:22:30,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:22:30,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:22:30,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:22:30,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:22:30,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:22:30,674 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:22:30,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:22:30,674 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:22:30,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:22:30,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:22:30,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:22:30,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:22:30,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:22:30,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:22:30,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:22:30,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:22:30,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:22:30,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:22:30,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:22:30,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:22:30,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:22:30,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:22:30,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:22:30,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:22:30,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:22:30,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:22:30,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:22:30,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:22:30,678 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:22:30,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:22:30,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:22:30,678 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_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf [2021-12-06 17:22:30,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:22:30,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:22:30,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:22:30,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:22:30,873 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:22:30,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2021-12-06 17:22:30,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data/34d29f5bd/39ff0dbbe9674b94b8732639e9f0c591/FLAGd43449749 [2021-12-06 17:22:31,222 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:22:31,222 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2021-12-06 17:22:31,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data/34d29f5bd/39ff0dbbe9674b94b8732639e9f0c591/FLAGd43449749 [2021-12-06 17:22:31,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data/34d29f5bd/39ff0dbbe9674b94b8732639e9f0c591 [2021-12-06 17:22:31,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:22:31,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:22:31,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:22:31,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:22:31,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:22:31,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fac6388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31, skipping insertion in model container [2021-12-06 17:22:31,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:22:31,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:22:31,769 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_24cded8b-ad8f-4722-8f0c-87215f2bf168/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2021-12-06 17:22:31,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:22:31,777 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:22:31,791 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_24cded8b-ad8f-4722-8f0c-87215f2bf168/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2021-12-06 17:22:31,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:22:31,800 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:22:31,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31 WrapperNode [2021-12-06 17:22:31,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:22:31,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:22:31,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:22:31,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:22:31,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,824 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-12-06 17:22:31,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:22:31,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:22:31,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:22:31,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:22:31,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:22:31,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:22:31,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:22:31,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:22:31,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (1/1) ... [2021-12-06 17:22:31,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:22:31,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:22:31,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:22:31,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:22:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:22:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-12-06 17:22:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-12-06 17:22:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-12-06 17:22:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-12-06 17:22:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:22:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:22:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:22:31,946 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:22:31,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:22:32,024 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:22:32,029 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:22:32,029 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 17:22:32,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:22:32 BoogieIcfgContainer [2021-12-06 17:22:32,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:22:32,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:22:32,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:22:32,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:22:32,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:22:31" (1/3) ... [2021-12-06 17:22:32,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a7907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:22:32, skipping insertion in model container [2021-12-06 17:22:32,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:31" (2/3) ... [2021-12-06 17:22:32,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a7907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:22:32, skipping insertion in model container [2021-12-06 17:22:32,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:22:32" (3/3) ... [2021-12-06 17:22:32,039 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_3.i [2021-12-06 17:22:32,044 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:22:32,045 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:22:32,085 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:22:32,091 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 [2021-12-06 17:22:32,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:22:32,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 17:22:32,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 17:22:32,109 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:22:32,110 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:22:32,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:22:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:22:32,116 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-12-06 17:22:32,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:22:32,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199206675] [2021-12-06 17:22:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:22:32,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:22:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:22:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:22:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:22:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:22:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:22:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 17:22:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:22:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 17:22:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:22:32,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:22:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:22:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:22:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:22:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:22:32,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:22:32,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199206675] [2021-12-06 17:22:32,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199206675] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:22:32,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:22:32,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:22:32,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175196658] [2021-12-06 17:22:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:22:32,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:22:32,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:22:32,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:22:32,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:22:32,296 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-06 17:22:32,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:22:32,310 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2021-12-06 17:22:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:22:32,312 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2021-12-06 17:22:32,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:22:32,317 INFO L225 Difference]: With dead ends: 49 [2021-12-06 17:22:32,317 INFO L226 Difference]: Without dead ends: 22 [2021-12-06 17:22:32,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:22:32,322 INFO L933 BasicCegarLoop]: 29 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, 29 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 [2021-12-06 17:22:32,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:22:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-06 17:22:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-06 17:22:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 17:22:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-06 17:22:32,350 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2021-12-06 17:22:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:22:32,351 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-06 17:22:32,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-06 17:22:32,351 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-12-06 17:22:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 17:22:32,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:22:32,353 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:22:32,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:22:32,353 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:22:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:22:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2021-12-06 17:22:32,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:22:32,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700182094] [2021-12-06 17:22:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:22:32,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:22:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:22:32,373 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:22:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:22:32,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:22:32,402 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:22:32,403 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:22:32,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:22:32,407 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 17:22:32,409 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:22:32,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:22:32 BoogieIcfgContainer [2021-12-06 17:22:32,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:22:32,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:22:32,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:22:32,430 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:22:32,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:22:32" (3/4) ... [2021-12-06 17:22:32,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:22:32,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:22:32,433 INFO L158 Benchmark]: Toolchain (without parser) took 790.54ms. Allocated memory is still 111.1MB. Free memory was 87.2MB in the beginning and 36.6MB in the end (delta: 50.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-12-06 17:22:32,433 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:22:32,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.13ms. Allocated memory is still 111.1MB. Free memory was 86.8MB in the beginning and 76.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:22:32,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.05ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 75.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:22:32,434 INFO L158 Benchmark]: Boogie Preprocessor took 14.16ms. Allocated memory is still 111.1MB. Free memory was 75.0MB in the beginning and 74.2MB in the end (delta: 792.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:22:32,435 INFO L158 Benchmark]: RCFGBuilder took 191.02ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 64.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 17:22:32,435 INFO L158 Benchmark]: TraceAbstraction took 396.71ms. Allocated memory is still 111.1MB. Free memory was 64.2MB in the beginning and 36.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-06 17:22:32,435 INFO L158 Benchmark]: Witness Printer took 2.65ms. Allocated memory is still 111.1MB. Free memory was 36.9MB in the beginning and 36.6MB in the end (delta: 330.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:22:32,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.13ms. Allocated memory is still 111.1MB. Free memory was 86.8MB in the beginning and 76.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.05ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 75.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.16ms. Allocated memory is still 111.1MB. Free memory was 75.0MB in the beginning and 74.2MB in the end (delta: 792.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 191.02ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 64.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 396.71ms. Allocated memory is still 111.1MB. Free memory was 64.2MB in the beginning and 36.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 2.65ms. Allocated memory is still 111.1MB. Free memory was 36.9MB in the beginning and 36.6MB in the end (delta: 330.7kB). 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: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L42] CALL, EXPR f(IN) VAL [\old(x)=50] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=50, x=50] [L42] RET, EXPR f(IN) VAL [f(IN)=51, IN=50] [L42] CALL, EXPR fp(IN) VAL [\old(x)=50] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=50, x=50] [L42] RET, EXPR fp(IN) VAL [f(IN)=51, fp(IN)=55, IN=50] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=53] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=53, x=53] [L44] RET, EXPR f(x) VAL [f(x)=54, IN=50, x=53] [L44] CALL, EXPR fp(x) VAL [\old(x)=53] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=53, x=53] [L44] RET, EXPR fp(x) VAL [f(x)=54, fp(x)=56, IN=50, x=53] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=52] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=52, x=52] [L46] RET, EXPR f(x) VAL [f(x)=57, IN=50, x=52] [L46] CALL, EXPR fp(x) VAL [\old(x)=52] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=52, x=52] [L46] RET, EXPR fp(x) VAL [f(x)=57, fp(x)=49, IN=50, x=52] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=50] [L51] reach_error() VAL [IN=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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, 29 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, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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 [2021-12-06 17:22:32,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/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_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa --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 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:22:34,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:22:34,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:22:34,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:22:34,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:22:34,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:22:34,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:22:34,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:22:34,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:22:34,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:22:34,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:22:34,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:22:34,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:22:34,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:22:34,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:22:34,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:22:34,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:22:34,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:22:34,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:22:34,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:22:34,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:22:34,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:22:34,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:22:34,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:22:34,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:22:34,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:22:34,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:22:34,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:22:34,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:22:34,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:22:34,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:22:34,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:22:34,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:22:34,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:22:34,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:22:34,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:22:34,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:22:34,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:22:34,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:22:34,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:22:34,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:22:34,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 17:22:34,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:22:34,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:22:34,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:22:34,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:22:34,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:22:34,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:22:34,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:22:34,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:22:34,303 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:22:34,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:22:34,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:22:34,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:22:34,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:22:34,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:22:34,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:22:34,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:22:34,304 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 17:22:34,304 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 17:22:34,304 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 17:22:34,304 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:22:34,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:22:34,304 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:22:34,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:22:34,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:22:34,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:22:34,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:22:34,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:22:34,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:22:34,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:22:34,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:22:34,306 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 17:22:34,306 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 17:22:34,306 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:22:34,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:22:34,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:22:34,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:22:34,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 17:22:34,306 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_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf [2021-12-06 17:22:34,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:22:34,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:22:34,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:22:34,538 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:22:34,538 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:22:34,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2021-12-06 17:22:34,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data/51f14887f/d72b2dac119b4d56801a67c33ca6812d/FLAG5418036b6 [2021-12-06 17:22:35,014 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:22:35,014 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2021-12-06 17:22:35,019 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data/51f14887f/d72b2dac119b4d56801a67c33ca6812d/FLAG5418036b6 [2021-12-06 17:22:35,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/data/51f14887f/d72b2dac119b4d56801a67c33ca6812d [2021-12-06 17:22:35,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:22:35,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:22:35,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:22:35,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:22:35,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:22:35,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a686c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35, skipping insertion in model container [2021-12-06 17:22:35,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:22:35,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:22:35,160 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_24cded8b-ad8f-4722-8f0c-87215f2bf168/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2021-12-06 17:22:35,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:22:35,171 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:22:35,194 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_24cded8b-ad8f-4722-8f0c-87215f2bf168/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2021-12-06 17:22:35,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:22:35,212 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:22:35,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35 WrapperNode [2021-12-06 17:22:35,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:22:35,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:22:35,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:22:35,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:22:35,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,239 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-12-06 17:22:35,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:22:35,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:22:35,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:22:35,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:22:35,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:22:35,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:22:35,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:22:35,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:22:35,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (1/1) ... [2021-12-06 17:22:35,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:22:35,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:22:35,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:22:35,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:22:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:22:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-12-06 17:22:35,320 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-12-06 17:22:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 17:22:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-12-06 17:22:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-12-06 17:22:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:22:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:22:35,372 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:22:35,374 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:22:44,056 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:22:44,061 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:22:44,061 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 17:22:44,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:22:44 BoogieIcfgContainer [2021-12-06 17:22:44,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:22:44,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:22:44,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:22:44,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:22:44,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:22:35" (1/3) ... [2021-12-06 17:22:44,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec31adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:22:44, skipping insertion in model container [2021-12-06 17:22:44,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:22:35" (2/3) ... [2021-12-06 17:22:44,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec31adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:22:44, skipping insertion in model container [2021-12-06 17:22:44,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:22:44" (3/3) ... [2021-12-06 17:22:44,069 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_3.i [2021-12-06 17:22:44,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:22:44,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:22:44,108 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:22:44,112 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 [2021-12-06 17:22:44,113 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:22:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 17:22:44,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 17:22:44,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:22:44,128 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:22:44,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:22:44,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:22:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-12-06 17:22:44,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:22:44,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708149803] [2021-12-06 17:22:44,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:22:44,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:22:44,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:22:44,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:22:44,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 17:22:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:22:47,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 17:22:47,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:22:47,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:22:47,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:22:47,408 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:22:47,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708149803] [2021-12-06 17:22:47,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708149803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:22:47,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:22:47,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:22:47,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886722521] [2021-12-06 17:22:47,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:22:47,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:22:47,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:22:47,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:22:47,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:22:47,437 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-06 17:22:47,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:22:47,451 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2021-12-06 17:22:47,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:22:47,453 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2021-12-06 17:22:47,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:22:47,457 INFO L225 Difference]: With dead ends: 49 [2021-12-06 17:22:47,458 INFO L226 Difference]: Without dead ends: 22 [2021-12-06 17:22:47,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:22:47,463 INFO L933 BasicCegarLoop]: 29 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, 29 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 [2021-12-06 17:22:47,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:22:47,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-06 17:22:47,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-06 17:22:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 17:22:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-06 17:22:47,491 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2021-12-06 17:22:47,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:22:47,491 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-06 17:22:47,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-06 17:22:47,491 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-12-06 17:22:47,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 17:22:47,493 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:22:47,493 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:22:47,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:22:47,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:22:47,694 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:22:47,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:22:47,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2021-12-06 17:22:47,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:22:47,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224224944] [2021-12-06 17:22:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:22:47,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:22:47,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:22:47,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:22:47,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cded8b-ad8f-4722-8f0c-87215f2bf168/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process