./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:23:14,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:23:14,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:23:14,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:23:14,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:23:14,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:23:14,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:23:14,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:23:14,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:23:14,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:23:14,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:23:14,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:23:14,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:23:14,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:23:14,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:23:14,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:23:14,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:23:14,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:23:14,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:23:14,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:23:14,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:23:14,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:23:14,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:23:14,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:23:14,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:23:14,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:23:14,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:23:14,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:23:14,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:23:14,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:23:14,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:23:14,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:23:14,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:23:14,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:23:14,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:23:14,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:23:14,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:23:14,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:23:14,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:23:14,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:23:14,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:23:14,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:23:14,602 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:23:14,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:23:14,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:23:14,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:23:14,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:23:14,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:23:14,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:23:14,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:23:14,604 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:23:14,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:23:14,604 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:23:14,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:23:14,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:23:14,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:23:14,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:23:14,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:23:14,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:23:14,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:23:14,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:23:14,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:23:14,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:23:14,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:23:14,607 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:23:14,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:23:14,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:23:14,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:23:14,607 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 [2021-12-07 01:23:14,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:23:14,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:23:14,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:23:14,802 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:23:14,803 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:23:14,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2021-12-07 01:23:14,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data/43973ccf8/9a1f46d7052d42a7876f5d863f28a104/FLAG3ef7545e4 [2021-12-07 01:23:15,220 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:23:15,221 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2021-12-07 01:23:15,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data/43973ccf8/9a1f46d7052d42a7876f5d863f28a104/FLAG3ef7545e4 [2021-12-07 01:23:15,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data/43973ccf8/9a1f46d7052d42a7876f5d863f28a104 [2021-12-07 01:23:15,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:23:15,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:23:15,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:23:15,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:23:15,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:23:15,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3f063b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15, skipping insertion in model container [2021-12-07 01:23:15,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:23:15,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:23:15,377 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[1226,1239] [2021-12-07 01:23:15,396 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[2820,2833] [2021-12-07 01:23:15,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:23:15,404 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:23:15,413 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[1226,1239] [2021-12-07 01:23:15,422 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[2820,2833] [2021-12-07 01:23:15,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:23:15,433 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:23:15,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15 WrapperNode [2021-12-07 01:23:15,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:23:15,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:23:15,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:23:15,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:23:15,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,470 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2021-12-07 01:23:15,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:23:15,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:23:15,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:23:15,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:23:15,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:23:15,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:23:15,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:23:15,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:23:15,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (1/1) ... [2021-12-07 01:23:15,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:23:15,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:23:15,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:23:15,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:23:15,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:23:15,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:23:15,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:23:15,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:23:15,612 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:23:15,614 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:23:15,723 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:23:15,729 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:23:15,729 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:23:15,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:23:15 BoogieIcfgContainer [2021-12-07 01:23:15,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:23:15,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:23:15,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:23:15,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:23:15,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:23:15" (1/3) ... [2021-12-07 01:23:15,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a296e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:23:15, skipping insertion in model container [2021-12-07 01:23:15,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:15" (2/3) ... [2021-12-07 01:23:15,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a296e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:23:15, skipping insertion in model container [2021-12-07 01:23:15,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:23:15" (3/3) ... [2021-12-07 01:23:15,739 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_2.i [2021-12-07 01:23:15,744 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:23:15,744 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-07 01:23:15,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:23:15,795 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 [2021-12-07 01:23:15,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-07 01:23:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 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) [2021-12-07 01:23:15,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 01:23:15,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:23:15,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:23:15,812 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:23:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:23:15,818 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-12-07 01:23:15,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:23:15,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592189036] [2021-12-07 01:23:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:23:15,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:23:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:23:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:23:15,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:23:15,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592189036] [2021-12-07 01:23:15,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592189036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:23:15,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:23:15,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:23:15,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312592790] [2021-12-07 01:23:15,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:23:15,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:23:15,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:23:15,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:23:15,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:23:15,981 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-12-07 01:23:15,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:23:15,993 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-12-07 01:23:15,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:23:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-12-07 01:23:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:23:16,000 INFO L225 Difference]: With dead ends: 47 [2021-12-07 01:23:16,000 INFO L226 Difference]: Without dead ends: 19 [2021-12-07 01:23:16,002 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 [2021-12-07 01:23:16,005 INFO L933 BasicCegarLoop]: 31 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, 31 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 [2021-12-07 01:23:16,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:23:16,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-07 01:23:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-07 01:23:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 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) [2021-12-07 01:23:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-12-07 01:23:16,029 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-12-07 01:23:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:23:16,029 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-12-07 01:23:16,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-12-07 01:23:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-12-07 01:23:16,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 01:23:16,030 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:23:16,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:23:16,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:23:16,030 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:23:16,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:23:16,031 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-12-07 01:23:16,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:23:16,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743695922] [2021-12-07 01:23:16,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:23:16,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:23:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:23:16,047 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:23:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:23:16,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:23:16,069 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 01:23:16,070 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-07 01:23:16,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-07 01:23:16,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:23:16,075 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-07 01:23:16,077 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:23:16,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:23:16 BoogieIcfgContainer [2021-12-07 01:23:16,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:23:16,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:23:16,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:23:16,096 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:23:16,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:23:15" (3/4) ... [2021-12-07 01:23:16,106 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 01:23:16,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:23:16,107 INFO L158 Benchmark]: Toolchain (without parser) took 866.39ms. Allocated memory is still 104.9MB. Free memory was 68.4MB in the beginning and 81.7MB in the end (delta: -13.3MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2021-12-07 01:23:16,107 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:23:16,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.52ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 79.6MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 01:23:16,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.51ms. Allocated memory is still 104.9MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:23:16,109 INFO L158 Benchmark]: Boogie Preprocessor took 22.88ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:23:16,110 INFO L158 Benchmark]: RCFGBuilder took 236.28ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 66.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 01:23:16,110 INFO L158 Benchmark]: TraceAbstraction took 362.09ms. Allocated memory is still 104.9MB. Free memory was 65.8MB in the beginning and 42.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-07 01:23:16,111 INFO L158 Benchmark]: Witness Printer took 10.40ms. Allocated memory is still 104.9MB. Free memory was 42.7MB in the beginning and 81.7MB in the end (delta: -39.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-12-07 01:23:16,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.52ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 79.6MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.51ms. Allocated memory is still 104.9MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.88ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 236.28ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 66.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 362.09ms. Allocated memory is still 104.9MB. Free memory was 65.8MB in the beginning and 42.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 10.40ms. Allocated memory is still 104.9MB. Free memory was 42.7MB in the beginning and 81.7MB in the end (delta: -39.0MB). Peak memory consumption was 6.5MB. 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L93] CALL, EXPR f(IN) [L80] 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)=49, x=49] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=49] [L102] reach_error() VAL [IN=49] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, 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, 31 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, 31 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=27occurred 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, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-12-07 01:23:16,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:23:17,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:23:17,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:23:17,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:23:17,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:23:17,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:23:17,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:23:17,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:23:17,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:23:17,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:23:17,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:23:17,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:23:17,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:23:17,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:23:17,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:23:17,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:23:17,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:23:17,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:23:17,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:23:17,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:23:17,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:23:17,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:23:17,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:23:17,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:23:17,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:23:17,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:23:17,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:23:17,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:23:17,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:23:17,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:23:17,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:23:17,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:23:17,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:23:17,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:23:17,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:23:17,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:23:17,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:23:17,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:23:17,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:23:17,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:23:17,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:23:17,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-07 01:23:17,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:23:17,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:23:17,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:23:17,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:23:17,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:23:17,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:23:17,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:23:17,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:23:17,825 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:23:17,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:23:17,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:23:17,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:23:17,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:23:17,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:23:17,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:23:17,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:23:17,826 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 01:23:17,826 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 01:23:17,826 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 01:23:17,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:23:17,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:23:17,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:23:17,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:23:17,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:23:17,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:23:17,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:23:17,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:23:17,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:23:17,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:23:17,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:23:17,828 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 01:23:17,828 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 01:23:17,828 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:23:17,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:23:17,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:23:17,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:23:17,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 01:23:17,829 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 [2021-12-07 01:23:18,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:23:18,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:23:18,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:23:18,094 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:23:18,095 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:23:18,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2021-12-07 01:23:18,139 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data/c63693722/e45d23fc0eb2452f91d5dc274f7596ee/FLAGfac57f129 [2021-12-07 01:23:18,516 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:23:18,516 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2021-12-07 01:23:18,522 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data/c63693722/e45d23fc0eb2452f91d5dc274f7596ee/FLAGfac57f129 [2021-12-07 01:23:18,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/data/c63693722/e45d23fc0eb2452f91d5dc274f7596ee [2021-12-07 01:23:18,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:23:18,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:23:18,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:23:18,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:23:18,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:23:18,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6058536b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18, skipping insertion in model container [2021-12-07 01:23:18,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:23:18,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:23:18,661 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[1226,1239] [2021-12-07 01:23:18,680 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[2820,2833] [2021-12-07 01:23:18,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:23:18,696 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:23:18,705 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[1226,1239] [2021-12-07 01:23:18,722 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_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[2820,2833] [2021-12-07 01:23:18,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:23:18,738 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:23:18,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18 WrapperNode [2021-12-07 01:23:18,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:23:18,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:23:18,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:23:18,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:23:18,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,773 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2021-12-07 01:23:18,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:23:18,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:23:18,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:23:18,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:23:18,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:23:18,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:23:18,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:23:18,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:23:18,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (1/1) ... [2021-12-07 01:23:18,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:23:18,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:23:18,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:23:18,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:23:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:23:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 01:23:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:23:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:23:18,930 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:23:18,931 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:23:24,888 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:23:24,894 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:23:24,894 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:23:24,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:23:24 BoogieIcfgContainer [2021-12-07 01:23:24,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:23:24,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:23:24,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:23:24,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:23:24,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:23:18" (1/3) ... [2021-12-07 01:23:24,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e48b3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:23:24, skipping insertion in model container [2021-12-07 01:23:24,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:23:18" (2/3) ... [2021-12-07 01:23:24,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e48b3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:23:24, skipping insertion in model container [2021-12-07 01:23:24,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:23:24" (3/3) ... [2021-12-07 01:23:24,902 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_2.i [2021-12-07 01:23:24,906 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:23:24,906 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-07 01:23:24,945 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:23:24,950 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 [2021-12-07 01:23:24,950 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-07 01:23:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 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) [2021-12-07 01:23:24,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 01:23:24,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:23:24,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:23:24,965 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:23:24,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:23:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-12-07 01:23:24,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:23:24,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500414557] [2021-12-07 01:23:24,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:23:24,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:23:24,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:23:24,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:23:24,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 01:23:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:23:26,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-07 01:23:26,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:23:26,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:23:26,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:23:26,133 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:23:26,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500414557] [2021-12-07 01:23:26,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500414557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:23:26,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:23:26,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:23:26,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115072386] [2021-12-07 01:23:26,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:23:26,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:23:26,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:23:26,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:23:26,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:23:26,164 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-12-07 01:23:26,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:23:26,175 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-12-07 01:23:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:23:26,177 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-12-07 01:23:26,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:23:26,182 INFO L225 Difference]: With dead ends: 47 [2021-12-07 01:23:26,182 INFO L226 Difference]: Without dead ends: 19 [2021-12-07 01:23:26,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:23:26,187 INFO L933 BasicCegarLoop]: 31 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, 31 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 [2021-12-07 01:23:26,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:23:26,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-07 01:23:26,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-07 01:23:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 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) [2021-12-07 01:23:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-12-07 01:23:26,210 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-12-07 01:23:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:23:26,211 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-12-07 01:23:26,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-12-07 01:23:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-12-07 01:23:26,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 01:23:26,212 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:23:26,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:23:26,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:23:26,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:23:26,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:23:26,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:23:26,414 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-12-07 01:23:26,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:23:26,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843581573] [2021-12-07 01:23:26,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:23:26,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:23:26,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:23:26,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:23:26,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4359a6-8812-4c5f-8a97-2d7cd5a1ed16/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process