./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.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_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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_d90155d3-c491-4b89-859e-87dcde2de574/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 c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 --- 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 13:34:34,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:34:34,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:34:34,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:34:34,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:34:34,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:34:34,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:34:34,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:34:34,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:34:34,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:34:34,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:34:34,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:34:34,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:34:34,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:34:34,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:34:34,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:34:34,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:34:34,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:34:34,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:34:34,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:34:34,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:34:34,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:34:34,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:34:34,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:34:34,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:34:34,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:34:34,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:34:34,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:34:34,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:34:34,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:34:34,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:34:34,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:34:34,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:34:34,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:34:34,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:34:34,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:34:34,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:34:34,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:34:34,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:34:34,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:34:34,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:34:34,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:34:34,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:34:34,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:34:34,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:34:34,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:34:34,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:34:34,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:34:34,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:34:34,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:34:34,480 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:34:34,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:34:34,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:34:34,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:34:34,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:34:34,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:34:34,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:34:34,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:34:34,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:34:34,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:34:34,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:34:34,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:34:34,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:34:34,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:34:34,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:34:34,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:34:34,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:34:34,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:34:34,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:34:34,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:34:34,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:34:34,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:34:34,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:34:34,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:34:34,483 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:34:34,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:34:34,483 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:34:34,483 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_d90155d3-c491-4b89-859e-87dcde2de574/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 [2022-12-13 13:34:34,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:34:34,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:34:34,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:34:34,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:34:34,699 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:34:34,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2022-12-13 13:34:37,250 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:34:37,390 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:34:37,390 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2022-12-13 13:34:37,396 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/data/ffe9df1d6/aa4e70117c5c41f986c1cd7b4f1e6275/FLAG059adc0dc [2022-12-13 13:34:37,407 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/data/ffe9df1d6/aa4e70117c5c41f986c1cd7b4f1e6275 [2022-12-13 13:34:37,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:34:37,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:34:37,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:34:37,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:34:37,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:34:37,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17730a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37, skipping insertion in model container [2022-12-13 13:34:37,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:34:37,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:34:37,536 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_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2022-12-13 13:34:37,552 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_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2022-12-13 13:34:37,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:34:37,561 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:34:37,570 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_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2022-12-13 13:34:37,576 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_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2022-12-13 13:34:37,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:34:37,588 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:34:37,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37 WrapperNode [2022-12-13 13:34:37,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:34:37,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:34:37,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:34:37,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:34:37,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,618 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-12-13 13:34:37,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:34:37,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:34:37,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:34:37,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:34:37,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,634 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:34:37,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:34:37,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:34:37,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:34:37,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (1/1) ... [2022-12-13 13:34:37,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:34:37,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:34:37,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:34:37,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:34:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:34:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:34:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:34:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:34:37,754 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:34:37,756 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:34:37,886 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:34:37,891 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:34:37,891 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:34:37,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:34:37 BoogieIcfgContainer [2022-12-13 13:34:37,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:34:37,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:34:37,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:34:37,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:34:37,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:34:37" (1/3) ... [2022-12-13 13:34:37,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3646e8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:34:37, skipping insertion in model container [2022-12-13 13:34:37,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:37" (2/3) ... [2022-12-13 13:34:37,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3646e8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:34:37, skipping insertion in model container [2022-12-13 13:34:37,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:34:37" (3/3) ... [2022-12-13 13:34:37,899 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_8.i [2022-12-13 13:34:37,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:34:37,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:34:37,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:34:37,952 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;@2feedcc2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:34:37,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:34:37,955 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 13:34:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 13:34:37,959 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:34:37,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:34:37,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:34:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:34:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-13 13:34:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:34:37,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342508907] [2022-12-13 13:34:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:34:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:34:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:34:38,066 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 13:34:38,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:34:38,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342508907] [2022-12-13 13:34:38,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342508907] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:34:38,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:34:38,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:34:38,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110593269] [2022-12-13 13:34:38,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:34:38,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:34:38,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:34:38,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:34:38,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:34:38,110 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 13:34:38,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:34:38,125 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-13 13:34:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:34:38,133 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 13:34:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:34:38,139 INFO L225 Difference]: With dead ends: 47 [2022-12-13 13:34:38,139 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 13:34:38,141 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 13:34:38,143 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 13:34:38,144 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 13:34:38,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 13:34:38,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 13:34:38,165 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 13:34:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 13:34:38,166 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-13 13:34:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:34:38,166 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 13:34:38,166 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 13:34:38,167 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 13:34:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 13:34:38,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:34:38,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:34:38,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:34:38,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:34:38,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:34:38,168 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-13 13:34:38,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:34:38,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554680468] [2022-12-13 13:34:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:34:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:34:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:34:38,190 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:34:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:34:38,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:34:38,218 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:34:38,220 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 13:34:38,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 13:34:38,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:34:38,224 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:34:38,226 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:34:38,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:34:38 BoogieIcfgContainer [2022-12-13 13:34:38,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:34:38,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:34:38,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:34:38,240 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:34:38,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:34:37" (3/4) ... [2022-12-13 13:34:38,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:34:38,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:34:38,243 INFO L158 Benchmark]: Toolchain (without parser) took 833.24ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 81.8MB in the beginning and 113.2MB in the end (delta: -31.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:34:38,243 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:34:38,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.35ms. Allocated memory is still 123.7MB. Free memory was 81.7MB in the beginning and 70.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 13:34:38,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.79ms. Allocated memory is still 123.7MB. Free memory was 70.3MB in the beginning and 68.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:34:38,244 INFO L158 Benchmark]: Boogie Preprocessor took 18.00ms. Allocated memory is still 123.7MB. Free memory was 68.4MB in the beginning and 67.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:34:38,244 INFO L158 Benchmark]: RCFGBuilder took 255.77ms. Allocated memory is still 123.7MB. Free memory was 67.1MB in the beginning and 55.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:34:38,245 INFO L158 Benchmark]: TraceAbstraction took 344.47ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 54.6MB in the beginning and 114.1MB in the end (delta: -59.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:34:38,245 INFO L158 Benchmark]: Witness Printer took 2.90ms. Allocated memory is still 148.9MB. Free memory is still 113.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:34:38,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.35ms. Allocated memory is still 123.7MB. Free memory was 81.7MB in the beginning and 70.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.79ms. Allocated memory is still 123.7MB. Free memory was 70.3MB in the beginning and 68.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.00ms. Allocated memory is still 123.7MB. Free memory was 68.4MB in the beginning and 67.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 255.77ms. Allocated memory is still 123.7MB. Free memory was 67.1MB in the beginning and 55.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 344.47ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 54.6MB in the beginning and 114.1MB in the end (delta: -59.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.90ms. Allocated memory is still 148.9MB. Free memory is still 113.2MB. 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 > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [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 13:34:38,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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_d90155d3-c491-4b89-859e-87dcde2de574/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 c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 --- 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 13:34:39,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:34:39,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:34:39,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:34:39,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:34:39,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:34:39,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:34:39,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:34:39,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:34:39,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:34:39,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:34:39,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:34:39,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:34:39,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:34:39,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:34:39,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:34:39,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:34:39,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:34:39,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:34:39,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:34:39,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:34:39,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:34:39,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:34:39,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:34:39,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:34:39,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:34:39,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:34:39,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:34:39,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:34:39,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:34:39,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:34:39,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:34:39,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:34:39,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:34:39,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:34:39,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:34:39,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:34:39,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:34:39,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:34:39,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:34:39,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:34:39,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 13:34:40,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:34:40,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:34:40,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:34:40,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:34:40,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:34:40,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:34:40,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:34:40,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:34:40,004 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:34:40,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:34:40,004 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:34:40,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:34:40,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:34:40,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:34:40,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:34:40,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:34:40,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:34:40,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:34:40,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:34:40,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:34:40,006 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:34:40,006 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:34:40,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:34:40,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:34:40,007 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:34:40,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:34:40,007 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:34:40,007 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:34:40,007 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_d90155d3-c491-4b89-859e-87dcde2de574/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 [2022-12-13 13:34:40,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:34:40,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:34:40,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:34:40,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:34:40,256 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:34:40,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2022-12-13 13:34:42,896 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:34:43,074 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:34:43,075 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2022-12-13 13:34:43,082 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/data/fa6a9e381/0b866c8e10b144eeb598907975c28a4f/FLAGfa413d0db [2022-12-13 13:34:43,096 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/data/fa6a9e381/0b866c8e10b144eeb598907975c28a4f [2022-12-13 13:34:43,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:34:43,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:34:43,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:34:43,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:34:43,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:34:43,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731f7083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43, skipping insertion in model container [2022-12-13 13:34:43,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:34:43,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:34:43,249 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_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2022-12-13 13:34:43,266 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_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2022-12-13 13:34:43,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:34:43,277 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:34:43,287 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_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2022-12-13 13:34:43,293 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_d90155d3-c491-4b89-859e-87dcde2de574/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2022-12-13 13:34:43,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:34:43,304 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:34:43,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43 WrapperNode [2022-12-13 13:34:43,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:34:43,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:34:43,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:34:43,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:34:43,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,332 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-12-13 13:34:43,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:34:43,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:34:43,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:34:43,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:34:43,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,351 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:34:43,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:34:43,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:34:43,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:34:43,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (1/1) ... [2022-12-13 13:34:43,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:34:43,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:34:43,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:34:43,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:34:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:34:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 13:34:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:34:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:34:43,475 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:34:43,477 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:34:49,890 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:34:49,896 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:34:49,897 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:34:49,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:34:49 BoogieIcfgContainer [2022-12-13 13:34:49,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:34:49,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:34:49,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:34:49,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:34:49,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:34:43" (1/3) ... [2022-12-13 13:34:49,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc80ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:34:49, skipping insertion in model container [2022-12-13 13:34:49,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:34:43" (2/3) ... [2022-12-13 13:34:49,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc80ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:34:49, skipping insertion in model container [2022-12-13 13:34:49,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:34:49" (3/3) ... [2022-12-13 13:34:49,908 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_8.i [2022-12-13 13:34:49,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:34:49,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:34:49,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:34:49,972 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;@32dacf0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:34:49,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:34:49,975 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 13:34:49,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 13:34:49,979 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:34:49,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:34:49,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:34:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:34:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-13 13:34:49,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:34:49,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649773378] [2022-12-13 13:34:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:34:49,994 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 13:34:49,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:34:49,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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 13:34:49,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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 13:34:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:34:51,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 13:34:51,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:34:51,106 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 13:34:51,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:34:51,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:34:51,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649773378] [2022-12-13 13:34:51,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649773378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:34:51,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:34:51,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:34:51,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952838381] [2022-12-13 13:34:51,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:34:51,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:34:51,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:34:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:34:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:34:51,133 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 13:34:51,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:34:51,145 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-13 13:34:51,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:34:51,146 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 13:34:51,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:34:51,151 INFO L225 Difference]: With dead ends: 47 [2022-12-13 13:34:51,151 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 13:34:51,153 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 13:34:51,155 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 13:34:51,156 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 13:34:51,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 13:34:51,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 13:34:51,176 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 13:34:51,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 13:34:51,177 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-13 13:34:51,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:34:51,178 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 13:34:51,178 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 13:34:51,178 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 13:34:51,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 13:34:51,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:34:51,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:34:51,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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 13:34:51,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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 13:34:51,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:34:51,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:34:51,380 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-13 13:34:51,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:34:51,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362872895] [2022-12-13 13:34:51,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:34:51,381 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 13:34:51,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:34:51,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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 13:34:51,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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 13:34:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:34:55,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:34:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:34:59,258 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 13:34:59,258 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:34:59,260 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 13:34:59,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 13:34:59,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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 13:34:59,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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 13:34:59,472 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:34:59,482 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:34:59,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:34:59 BoogieIcfgContainer [2022-12-13 13:34:59,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:34:59,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:34:59,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:34:59,516 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:34:59,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:34:49" (3/4) ... [2022-12-13 13:34:59,518 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 13:34:59,543 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:34:59,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:34:59,544 INFO L158 Benchmark]: Toolchain (without parser) took 16443.38ms. Allocated memory is still 88.1MB. Free memory was 66.5MB in the beginning and 64.6MB in the end (delta: 1.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-12-13 13:34:59,544 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 32.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:34:59,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.65ms. Allocated memory is still 88.1MB. Free memory was 66.2MB in the beginning and 54.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:34:59,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.22ms. Allocated memory is still 88.1MB. Free memory was 54.2MB in the beginning and 52.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:34:59,545 INFO L158 Benchmark]: Boogie Preprocessor took 21.63ms. Allocated memory is still 88.1MB. Free memory was 52.2MB in the beginning and 50.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:34:59,545 INFO L158 Benchmark]: RCFGBuilder took 6543.38ms. Allocated memory is still 88.1MB. Free memory was 50.7MB in the beginning and 61.4MB in the end (delta: -10.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-12-13 13:34:59,546 INFO L158 Benchmark]: TraceAbstraction took 9614.10ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 66.6MB in the end (delta: -5.7MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-12-13 13:34:59,546 INFO L158 Benchmark]: Witness Printer took 27.24ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 64.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:34:59,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 32.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.65ms. Allocated memory is still 88.1MB. Free memory was 66.2MB in the beginning and 54.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.22ms. Allocated memory is still 88.1MB. Free memory was 54.2MB in the beginning and 52.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.63ms. Allocated memory is still 88.1MB. Free memory was 52.2MB in the beginning and 50.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6543.38ms. Allocated memory is still 88.1MB. Free memory was 50.7MB in the beginning and 61.4MB in the end (delta: -10.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9614.10ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 66.6MB in the end (delta: -5.7MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 27.24ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 64.6MB in the end (delta: 2.0MB). 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 > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [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)=-1.0, \result=-0.841865062713623, x=-1.0] [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)=-1.0, \result=0.5430555939674377, x=-1.0] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-1.0, x=0.5502372980117798] [L102] reach_error() VAL [IN=-1.0, x=0.5502372980117798] - 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: 9.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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, 5.0s 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 13:34:59,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90155d3-c491-4b89-859e-87dcde2de574/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