./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8 --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 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:14:14,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:14:14,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:14:14,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:14:14,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:14:14,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:14:14,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:14:14,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:14:14,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:14:14,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:14:14,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:14:14,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:14:14,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:14:14,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:14:14,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:14:14,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:14:14,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:14:14,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:14:14,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:14:14,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:14:14,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:14:14,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:14:14,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:14:14,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:14:14,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:14:14,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:14:14,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:14:14,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:14:14,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:14:14,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:14:14,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:14:14,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:14:14,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:14:14,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:14:14,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:14:14,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:14:14,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:14:14,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:14:14,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:14:14,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:14:14,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:14:14,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:14:14,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:14:14,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:14:14,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:14:14,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:14:14,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:14:14,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:14:14,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:14:14,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:14:14,518 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:14:14,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:14:14,518 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:14:14,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:14:14,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:14:14,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:14:14,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:14:14,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:14:14,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:14:14,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:14:14,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:14:14,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:14:14,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:14:14,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:14:14,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:14:14,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:14:14,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:14:14,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:14:14,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:14:14,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:14:14,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:14:14,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:14:14,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:14:14,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:14:14,522 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:14:14,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:14:14,522 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:14:14,522 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 [2022-12-13 18:14:14,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:14:14,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:14:14,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:14:14,728 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:14:14,729 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:14:14,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2022-12-13 18:14:17,395 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:14:17,528 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:14:17,529 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2022-12-13 18:14:17,533 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/data/49e3277ab/fcfb74a19a7143eb99473b01094512f4/FLAG160dd720e [2022-12-13 18:14:17,544 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/data/49e3277ab/fcfb74a19a7143eb99473b01094512f4 [2022-12-13 18:14:17,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:14:17,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:14:17,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:14:17,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:14:17,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:14:17,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638de71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17, skipping insertion in model container [2022-12-13 18:14:17,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:14:17,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:14:17,676 WARN L237 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2022-12-13 18:14:17,693 WARN L237 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2022-12-13 18:14:17,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:14:17,701 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:14:17,710 WARN L237 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2022-12-13 18:14:17,716 WARN L237 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2022-12-13 18:14:17,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:14:17,727 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:14:17,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17 WrapperNode [2022-12-13 18:14:17,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:14:17,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:14:17,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:14:17,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:14:17,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,755 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-12-13 18:14:17,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:14:17,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:14:17,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:14:17,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:14:17,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,776 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:14:17,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:14:17,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:14:17,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:14:17,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (1/1) ... [2022-12-13 18:14:17,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:14:17,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:14:17,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:14:17,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:14:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:14:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:14:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:14:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:14:17,896 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:14:17,898 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:14:18,004 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:14:18,009 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:14:18,009 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 18:14:18,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:14:18 BoogieIcfgContainer [2022-12-13 18:14:18,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:14:18,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:14:18,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:14:18,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:14:18,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:14:17" (1/3) ... [2022-12-13 18:14:18,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c912055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:14:18, skipping insertion in model container [2022-12-13 18:14:18,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:17" (2/3) ... [2022-12-13 18:14:18,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c912055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:14:18, skipping insertion in model container [2022-12-13 18:14:18,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:14:18" (3/3) ... [2022-12-13 18:14:18,018 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_7.i [2022-12-13 18:14:18,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:14:18,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:14:18,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:14:18,071 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22ac1439, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:14:18,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:14:18,074 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) [2022-12-13 18:14:18,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 18:14:18,079 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:14:18,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:14:18,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:14:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:14:18,083 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-13 18:14:18,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:14:18,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582250972] [2022-12-13 18:14:18,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:14:18,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:14:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:14:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:14:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:14:18,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582250972] [2022-12-13 18:14:18,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582250972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:14:18,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:14:18,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:14:18,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141519679] [2022-12-13 18:14:18,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:14:18,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:14:18,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:14:18,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:14:18,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:14:18,229 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) [2022-12-13 18:14:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:14:18,241 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-12-13 18:14:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:14:18,243 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 [2022-12-13 18:14:18,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:14:18,249 INFO L225 Difference]: With dead ends: 46 [2022-12-13 18:14:18,249 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 18:14:18,252 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:14:18,255 INFO L413 NwaCegarLoop]: 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 [2022-12-13 18:14:18,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:14:18,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 18:14:18,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 18:14:18,279 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) [2022-12-13 18:14:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 18:14:18,281 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-13 18:14:18,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:14:18,281 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 18:14:18,281 INFO L496 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) [2022-12-13 18:14:18,281 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 18:14:18,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 18:14:18,282 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:14:18,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:14:18,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:14:18,283 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:14:18,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:14:18,284 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-13 18:14:18,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:14:18,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259133465] [2022-12-13 18:14:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:14:18,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:14:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:14:18,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:14:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:14:18,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:14:18,322 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:14:18,324 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 18:14:18,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 18:14:18,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:14:18,328 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 18:14:18,331 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:14:18,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:14:18 BoogieIcfgContainer [2022-12-13 18:14:18,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:14:18,345 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:14:18,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:14:18,345 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:14:18,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:14:18" (3/4) ... [2022-12-13 18:14:18,348 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:14:18,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:14:18,348 INFO L158 Benchmark]: Toolchain (without parser) took 800.97ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.0MB in the beginning and 102.0MB in the end (delta: -14.0MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-12-13 18:14:18,349 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:14:18,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.07ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 76.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 18:14:18,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.37ms. Allocated memory is still 121.6MB. Free memory was 76.6MB in the beginning and 74.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:14:18,350 INFO L158 Benchmark]: Boogie Preprocessor took 23.82ms. Allocated memory is still 121.6MB. Free memory was 74.8MB in the beginning and 73.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:14:18,350 INFO L158 Benchmark]: RCFGBuilder took 230.55ms. Allocated memory is still 121.6MB. Free memory was 73.4MB in the beginning and 61.5MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 18:14:18,350 INFO L158 Benchmark]: TraceAbstraction took 331.03ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 60.8MB in the beginning and 102.0MB in the end (delta: -41.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:14:18,351 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 146.8MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:14:18,353 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 121.6MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.07ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 76.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.37ms. Allocated memory is still 121.6MB. Free memory was 76.6MB in the beginning and 74.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.82ms. Allocated memory is still 121.6MB. Free memory was 74.8MB in the beginning and 73.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 230.55ms. Allocated memory is still 121.6MB. Free memory was 73.4MB in the beginning and 61.5MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 331.03ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 60.8MB in the beginning and 102.0MB in the end (delta: -41.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 146.8MB. Free memory is still 102.0MB. 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: 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 > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [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)=109, x=109] [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)=109, x=109] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=109] [L102] reach_error() VAL [IN=109] - 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: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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 [2022-12-13 18:14:18,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8 --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 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:14:20,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:14:20,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:14:20,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:14:20,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:14:20,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:14:20,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:14:20,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:14:20,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:14:20,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:14:20,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:14:20,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:14:20,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:14:20,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:14:20,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:14:20,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:14:20,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:14:20,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:14:20,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:14:20,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:14:20,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:14:20,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:14:20,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:14:20,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:14:20,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:14:20,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:14:20,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:14:20,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:14:20,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:14:20,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:14:20,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:14:20,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:14:20,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:14:20,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:14:20,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:14:20,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:14:20,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:14:20,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:14:20,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:14:20,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:14:20,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:14:20,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 18:14:20,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:14:20,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:14:20,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:14:20,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:14:20,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:14:20,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:14:20,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:14:20,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:14:20,177 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:14:20,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:14:20,178 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:14:20,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:14:20,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:14:20,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:14:20,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:14:20,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:14:20,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:14:20,179 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 18:14:20,179 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 18:14:20,180 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:14:20,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:14:20,180 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:14:20,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:14:20,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:14:20,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:14:20,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:14:20,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:14:20,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:14:20,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:14:20,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:14:20,182 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 18:14:20,182 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 18:14:20,182 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:14:20,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:14:20,183 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:14:20,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:14:20,183 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 18:14:20,183 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:14:20,183 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 [2022-12-13 18:14:20,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:14:20,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:14:20,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:14:20,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:14:20,410 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:14:20,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2022-12-13 18:14:23,026 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:14:23,169 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:14:23,169 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2022-12-13 18:14:23,175 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/data/cc327b403/9e6ea7ab727e4cfcaf49fc763469eefb/FLAG7715a8284 [2022-12-13 18:14:23,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/data/cc327b403/9e6ea7ab727e4cfcaf49fc763469eefb [2022-12-13 18:14:23,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:14:23,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:14:23,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:14:23,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:14:23,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:14:23,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36661cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23, skipping insertion in model container [2022-12-13 18:14:23,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:14:23,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:14:23,322 WARN L237 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2022-12-13 18:14:23,340 WARN L237 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2022-12-13 18:14:23,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:14:23,350 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:14:23,361 WARN L237 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2022-12-13 18:14:23,367 WARN L237 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_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2022-12-13 18:14:23,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:14:23,380 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:14:23,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23 WrapperNode [2022-12-13 18:14:23,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:14:23,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:14:23,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:14:23,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:14:23,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,419 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-12-13 18:14:23,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:14:23,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:14:23,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:14:23,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:14:23,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:14:23,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:14:23,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:14:23,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:14:23,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (1/1) ... [2022-12-13 18:14:23,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:14:23,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:14:23,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:14:23,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:14:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:14:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 18:14:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:14:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:14:23,590 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:14:23,592 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:14:29,938 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:14:29,944 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:14:29,944 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 18:14:29,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:14:29 BoogieIcfgContainer [2022-12-13 18:14:29,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:14:29,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:14:29,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:14:29,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:14:29,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:14:23" (1/3) ... [2022-12-13 18:14:29,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360ef338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:14:29, skipping insertion in model container [2022-12-13 18:14:29,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:14:23" (2/3) ... [2022-12-13 18:14:29,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360ef338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:14:29, skipping insertion in model container [2022-12-13 18:14:29,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:14:29" (3/3) ... [2022-12-13 18:14:29,954 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_7.i [2022-12-13 18:14:29,972 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:14:29,972 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:14:30,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:14:30,023 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d022cee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:14:30,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:14:30,027 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) [2022-12-13 18:14:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 18:14:30,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:14:30,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:14:30,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:14:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:14:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-13 18:14:30,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:14:30,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342323187] [2022-12-13 18:14:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:14:30,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:14:30,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:14:30,053 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 18:14:30,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 18:14:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:14:31,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 18:14:31,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:14:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:14:31,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:14:31,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 18:14:31,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342323187] [2022-12-13 18:14:31,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342323187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:14:31,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:14:31,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:14:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444780070] [2022-12-13 18:14:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:14:31,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:14:31,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 18:14:31,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:14:31,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:14:31,196 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) [2022-12-13 18:14:31,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:14:31,211 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-12-13 18:14:31,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:14:31,213 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 [2022-12-13 18:14:31,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:14:31,218 INFO L225 Difference]: With dead ends: 46 [2022-12-13 18:14:31,218 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 18:14:31,220 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:14:31,224 INFO L413 NwaCegarLoop]: 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 [2022-12-13 18:14:31,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:14:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 18:14:31,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 18:14:31,244 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) [2022-12-13 18:14:31,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 18:14:31,246 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-13 18:14:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:14:31,246 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 18:14:31,246 INFO L496 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) [2022-12-13 18:14:31,247 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 18:14:31,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 18:14:31,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:14:31,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:14:31,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:14:31,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:14:31,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:14:31,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:14:31,452 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-13 18:14:31,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:14:31,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847307024] [2022-12-13 18:14:31,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:14:31,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:14:31,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:14:31,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 18:14:31,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 18:22:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:22:24,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:25:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:25:33,717 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 18:25:33,717 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:25:33,718 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 18:25:33,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 18:25:33,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 18:25:33,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:25:33,928 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 18:25:33,938 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:25:33,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:25:33 BoogieIcfgContainer [2022-12-13 18:25:33,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:25:33,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:25:33,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:25:33,961 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:25:33,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:14:29" (3/4) ... [2022-12-13 18:25:33,962 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 18:25:33,991 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:25:33,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:25:33,992 INFO L158 Benchmark]: Toolchain (without parser) took 670803.51ms. Allocated memory is still 86.0MB. Free memory was 64.7MB in the beginning and 55.3MB in the end (delta: 9.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-12-13 18:25:33,993 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:25:33,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.95ms. Allocated memory is still 86.0MB. Free memory was 64.5MB in the beginning and 52.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:25:33,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.13ms. Allocated memory is still 86.0MB. Free memory was 52.7MB in the beginning and 50.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:25:33,994 INFO L158 Benchmark]: Boogie Preprocessor took 28.93ms. Allocated memory is still 86.0MB. Free memory was 50.8MB in the beginning and 49.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:25:33,994 INFO L158 Benchmark]: RCFGBuilder took 6496.20ms. Allocated memory is still 86.0MB. Free memory was 49.1MB in the beginning and 58.0MB in the end (delta: -8.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 18:25:33,995 INFO L158 Benchmark]: TraceAbstraction took 664012.02ms. Allocated memory is still 86.0MB. Free memory was 57.2MB in the beginning and 57.4MB in the end (delta: -134.9kB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2022-12-13 18:25:33,995 INFO L158 Benchmark]: Witness Printer took 31.20ms. Allocated memory is still 86.0MB. Free memory was 57.2MB in the beginning and 55.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:25:33,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.95ms. Allocated memory is still 86.0MB. Free memory was 64.5MB in the beginning and 52.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.13ms. Allocated memory is still 86.0MB. Free memory was 52.7MB in the beginning and 50.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.93ms. Allocated memory is still 86.0MB. Free memory was 50.8MB in the beginning and 49.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6496.20ms. Allocated memory is still 86.0MB. Free memory was 49.1MB in the beginning and 58.0MB in the end (delta: -8.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 664012.02ms. Allocated memory is still 86.0MB. Free memory was 57.2MB in the beginning and 57.4MB in the end (delta: -134.9kB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 31.20ms. Allocated memory is still 86.0MB. Free memory was 57.2MB in the beginning and 55.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [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)=-1.3114479780197144, \result=-0.969173789024353, x=-1.3114479780197144] [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)=-1.3114479780197144, \result=0.27036982774734497, x=-1.3114479780197144] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-1.3114479780197144, x=2.27317476272583] [L102] reach_error() VAL [IN=-1.3114479780197144, x=2.27317476272583] - 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: 663.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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, 8 GetRequests, 8 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, 474.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2022-12-13 18:25:34,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb30850-bce0-4df6-9419-8fa1b4deb8ab/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE