./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN --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 e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a --- 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-6b4ec56 [2022-11-20 11:39:42,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:39:42,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:39:42,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:39:42,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:39:42,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:39:42,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:39:42,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:39:42,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:39:42,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:39:42,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:39:42,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:39:42,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:39:42,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:39:42,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:39:42,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:39:42,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:39:42,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:39:42,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:39:42,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:39:42,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:39:42,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:39:42,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:39:42,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:39:42,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:39:42,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:39:42,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:39:42,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:39:42,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:39:42,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:39:42,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:39:42,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:39:42,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:39:42,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:39:42,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:39:42,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:39:42,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:39:42,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:39:42,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:39:42,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:39:42,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:39:42,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:39:42,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:39:42,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:39:42,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:39:42,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:39:42,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:39:42,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:39:42,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:39:42,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:39:42,488 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:39:42,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:39:42,489 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:39:42,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:39:42,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:39:42,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:39:42,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:39:42,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:39:42,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:39:42,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:39:42,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:39:42,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:39:42,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:39:42,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:39:42,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:39:42,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:39:42,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:39:42,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:39:42,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:39:42,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:39:42,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:39:42,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:39:42,492 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:39:42,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:39:42,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:39:42,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a [2022-11-20 11:39:42,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:39:42,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:39:42,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:39:42,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:39:42,795 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:39:42,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2022-11-20 11:39:45,906 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:39:46,127 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:39:46,128 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2022-11-20 11:39:46,135 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/data/b72ce72b5/589e5de76fb5417a98751a06b8e37195/FLAGdea25f912 [2022-11-20 11:39:46,160 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/data/b72ce72b5/589e5de76fb5417a98751a06b8e37195 [2022-11-20 11:39:46,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:39:46,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:39:46,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:39:46,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:39:46,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:39:46,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14709cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46, skipping insertion in model container [2022-11-20 11:39:46,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:39:46,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:39:46,354 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2022-11-20 11:39:46,378 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2022-11-20 11:39:46,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:39:46,392 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:39:46,406 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2022-11-20 11:39:46,416 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2022-11-20 11:39:46,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:39:46,432 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:39:46,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46 WrapperNode [2022-11-20 11:39:46,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:39:46,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:39:46,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:39:46,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:39:46,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,473 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2022-11-20 11:39:46,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:39:46,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:39:46,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:39:46,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:39:46,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,495 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:39:46,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:39:46,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:39:46,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:39:46,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (1/1) ... [2022-11-20 11:39:46,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:39:46,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:39:46,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:39:46,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:39:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:39:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:39:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:39:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:39:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 11:39:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 11:39:46,654 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:39:46,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:39:46,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:39:46,818 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:39:46,818 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:39:46,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:46 BoogieIcfgContainer [2022-11-20 11:39:46,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:39:46,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:39:46,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:39:46,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:39:46,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:39:46" (1/3) ... [2022-11-20 11:39:46,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41731ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:39:46, skipping insertion in model container [2022-11-20 11:39:46,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:46" (2/3) ... [2022-11-20 11:39:46,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41731ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:39:46, skipping insertion in model container [2022-11-20 11:39:46,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:46" (3/3) ... [2022-11-20 11:39:46,831 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_5.i [2022-11-20 11:39:46,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:39:46,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:39:46,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:39:46,923 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;@7ad37025, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:39:46,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 11:39:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:39:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:39:46,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:39:46,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:39:46,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:39:46,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:46,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2022-11-20 11:39:46,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:46,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330117013] [2022-11-20 11:39:46,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:46,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:39:47,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:47,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330117013] [2022-11-20 11:39:47,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330117013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:47,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:47,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:39:47,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139606005] [2022-11-20 11:39:47,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:47,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:39:47,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:47,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:39:47,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:39:47,202 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2022-11-20 11:39:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:39:47,227 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2022-11-20 11:39:47,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:39:47,229 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 [2022-11-20 11:39:47,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:39:47,237 INFO L225 Difference]: With dead ends: 57 [2022-11-20 11:39:47,238 INFO L226 Difference]: Without dead ends: 26 [2022-11-20 11:39:47,241 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 [2022-11-20 11:39:47,245 INFO L413 NwaCegarLoop]: 40 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, 40 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 [2022-11-20 11:39:47,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:39:47,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-20 11:39:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-20 11:39:47,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:39:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-20 11:39:47,289 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2022-11-20 11:39:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:39:47,290 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-20 11:39:47,290 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) [2022-11-20 11:39:47,290 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-20 11:39:47,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:39:47,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:39:47,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:39:47,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:39:47,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:39:47,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:47,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2022-11-20 11:39:47,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:47,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736621020] [2022-11-20 11:39:47,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:47,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:47,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:39:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:47,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:39:47,353 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:39:47,356 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 11:39:47,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-20 11:39:47,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:39:47,363 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 11:39:47,367 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:39:47,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:39:47 BoogieIcfgContainer [2022-11-20 11:39:47,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:39:47,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:39:47,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:39:47,392 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:39:47,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:46" (3/4) ... [2022-11-20 11:39:47,396 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:39:47,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:39:47,397 INFO L158 Benchmark]: Toolchain (without parser) took 1228.68ms. Allocated memory is still 155.2MB. Free memory was 112.5MB in the beginning and 112.6MB in the end (delta: -137.4kB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-20 11:39:47,398 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:47,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.48ms. Allocated memory is still 155.2MB. Free memory was 112.0MB in the beginning and 100.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:39:47,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.78ms. Allocated memory is still 155.2MB. Free memory was 100.9MB in the beginning and 98.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:39:47,399 INFO L158 Benchmark]: Boogie Preprocessor took 24.51ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 97.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:47,400 INFO L158 Benchmark]: RCFGBuilder took 321.14ms. Allocated memory is still 155.2MB. Free memory was 97.8MB in the beginning and 85.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:39:47,400 INFO L158 Benchmark]: TraceAbstraction took 567.46ms. Allocated memory is still 155.2MB. Free memory was 85.2MB in the beginning and 113.1MB in the end (delta: -27.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:47,401 INFO L158 Benchmark]: Witness Printer took 4.96ms. Allocated memory is still 155.2MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:47,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.48ms. Allocated memory is still 155.2MB. Free memory was 112.0MB in the beginning and 100.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.78ms. Allocated memory is still 155.2MB. Free memory was 100.9MB in the beginning and 98.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.51ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 97.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 321.14ms. Allocated memory is still 155.2MB. Free memory was 97.8MB in the beginning and 85.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 567.46ms. Allocated memory is still 155.2MB. Free memory was 85.2MB in the beginning and 113.1MB in the end (delta: -27.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.96ms. Allocated memory is still 155.2MB. Free memory is still 112.6MB. 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: 109]: 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 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 100. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L82] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L98] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L100] CALL, EXPR f(IN) [L87] 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] [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] 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] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) VAL [IN=109] [L109] 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 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 40 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, 40 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=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 [2022-11-20 11:39:47,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN --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 e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a --- 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-6b4ec56 [2022-11-20 11:39:49,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:39:49,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:39:50,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:39:50,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:39:50,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:39:50,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:39:50,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:39:50,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:39:50,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:39:50,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:39:50,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:39:50,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:39:50,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:39:50,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:39:50,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:39:50,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:39:50,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:39:50,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:39:50,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:39:50,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:39:50,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:39:50,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:39:50,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:39:50,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:39:50,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:39:50,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:39:50,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:39:50,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:39:50,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:39:50,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:39:50,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:39:50,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:39:50,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:39:50,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:39:50,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:39:50,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:39:50,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:39:50,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:39:50,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:39:50,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:39:50,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 11:39:50,143 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:39:50,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:39:50,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:39:50,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:39:50,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:39:50,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:39:50,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:39:50,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:39:50,153 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:39:50,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:39:50,153 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:39:50,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:39:50,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:39:50,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:39:50,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:39:50,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:39:50,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:39:50,155 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:39:50,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:39:50,157 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:39:50,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:39:50,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:39:50,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:39:50,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:39:50,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:39:50,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:39:50,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:39:50,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:39:50,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:39:50,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:39:50,160 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:39:50,160 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:39:50,161 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:39:50,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:39:50,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:39:50,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:39:50,162 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a [2022-11-20 11:39:50,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:39:50,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:39:50,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:39:50,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:39:50,568 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:39:50,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2022-11-20 11:39:53,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:39:53,963 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:39:53,963 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2022-11-20 11:39:53,971 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/data/9a2f37360/1f66d6c34bbb436387a22246a71262b6/FLAG7ae3650c2 [2022-11-20 11:39:53,997 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/data/9a2f37360/1f66d6c34bbb436387a22246a71262b6 [2022-11-20 11:39:54,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:39:54,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:39:54,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:39:54,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:39:54,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:39:54,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:53" (1/1) ... [2022-11-20 11:39:54,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7a0d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54, skipping insertion in model container [2022-11-20 11:39:54,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:53" (1/1) ... [2022-11-20 11:39:54,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:39:54,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:39:54,269 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2022-11-20 11:39:54,323 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2022-11-20 11:39:54,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:39:54,347 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:39:54,372 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2022-11-20 11:39:54,391 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_8371e61c-6161-4ca5-9a52-b21324dae0fa/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2022-11-20 11:39:54,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:39:54,414 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:39:54,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54 WrapperNode [2022-11-20 11:39:54,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:39:54,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:39:54,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:39:54,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:39:54,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,486 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2022-11-20 11:39:54,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:39:54,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:39:54,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:39:54,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:39:54,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:39:54,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:39:54,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:39:54,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:39:54,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (1/1) ... [2022-11-20 11:39:54,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:39:54,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:39:54,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:39:54,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:39:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:39:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:39:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:39:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:39:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 11:39:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 11:39:54,819 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:39:54,821 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:40:01,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:40:01,179 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:40:01,180 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:40:01,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:01 BoogieIcfgContainer [2022-11-20 11:40:01,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:40:01,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:40:01,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:40:01,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:40:01,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:39:53" (1/3) ... [2022-11-20 11:40:01,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b53fd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:40:01, skipping insertion in model container [2022-11-20 11:40:01,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:54" (2/3) ... [2022-11-20 11:40:01,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b53fd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:40:01, skipping insertion in model container [2022-11-20 11:40:01,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:01" (3/3) ... [2022-11-20 11:40:01,197 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_5.i [2022-11-20 11:40:01,217 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:40:01,217 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:40:01,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:40:01,291 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;@5ce02d1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:40:01,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 11:40:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:40:01,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:40:01,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:40:01,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:01,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:40:01,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:01,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2022-11-20 11:40:01,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:40:01,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861755841] [2022-11-20 11:40:01,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:01,330 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 [2022-11-20 11:40:01,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:40:01,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:40:01,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:40:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:02,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:40:02,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:40:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:02,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:40:02,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:40:02,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861755841] [2022-11-20 11:40:02,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861755841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:02,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:02,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:02,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250782013] [2022-11-20 11:40:02,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:02,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:40:02,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:40:02,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:40:02,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:40:02,690 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2022-11-20 11:40:02,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:40:02,716 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2022-11-20 11:40:02,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:40:02,718 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 [2022-11-20 11:40:02,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:40:02,726 INFO L225 Difference]: With dead ends: 57 [2022-11-20 11:40:02,727 INFO L226 Difference]: Without dead ends: 26 [2022-11-20 11:40:02,730 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 [2022-11-20 11:40:02,735 INFO L413 NwaCegarLoop]: 40 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, 40 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 [2022-11-20 11:40:02,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:40:02,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-20 11:40:02,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-20 11:40:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:40:02,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-20 11:40:02,783 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2022-11-20 11:40:02,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:40:02,783 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-20 11:40:02,784 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) [2022-11-20 11:40:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-20 11:40:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:40:02,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:40:02,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:02,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:40:03,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:40:03,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:40:03,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:03,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2022-11-20 11:40:03,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:40:03,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530723485] [2022-11-20 11:40:03,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:03,009 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 [2022-11-20 11:40:03,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:40:03,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:40:03,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:40:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:40:11,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:40:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:40:21,992 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 11:40:21,993 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:40:21,996 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 11:40:21,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-20 11:40:22,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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)] Forceful destruction successful, exit code 0 [2022-11-20 11:40:22,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:40:22,202 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 11:40:22,206 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:40:22,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:40:22 BoogieIcfgContainer [2022-11-20 11:40:22,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:40:22,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:40:22,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:40:22,231 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:40:22,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:01" (3/4) ... [2022-11-20 11:40:22,234 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 11:40:22,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:40:22,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:40:22,271 INFO L158 Benchmark]: Toolchain (without parser) took 28266.74ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 33.3MB in the end (delta: 19.1MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-11-20 11:40:22,272 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:40:22,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.38ms. Allocated memory is still 73.4MB. Free memory was 52.3MB in the beginning and 40.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:40:22,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.81ms. Allocated memory is still 73.4MB. Free memory was 40.2MB in the beginning and 38.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:40:22,278 INFO L158 Benchmark]: Boogie Preprocessor took 109.52ms. Allocated memory is still 73.4MB. Free memory was 38.4MB in the beginning and 54.3MB in the end (delta: -15.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-20 11:40:22,279 INFO L158 Benchmark]: RCFGBuilder took 6585.49ms. Allocated memory is still 73.4MB. Free memory was 54.3MB in the beginning and 42.3MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:40:22,281 INFO L158 Benchmark]: TraceAbstraction took 21043.82ms. Allocated memory is still 73.4MB. Free memory was 41.5MB in the beginning and 35.2MB in the end (delta: 6.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-11-20 11:40:22,281 INFO L158 Benchmark]: Witness Printer took 39.73ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 33.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:40:22,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.38ms. Allocated memory is still 73.4MB. Free memory was 52.3MB in the beginning and 40.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.81ms. Allocated memory is still 73.4MB. Free memory was 40.2MB in the beginning and 38.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.52ms. Allocated memory is still 73.4MB. Free memory was 38.4MB in the beginning and 54.3MB in the end (delta: -15.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * RCFGBuilder took 6585.49ms. Allocated memory is still 73.4MB. Free memory was 54.3MB in the beginning and 42.3MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 21043.82ms. Allocated memory is still 73.4MB. Free memory was 41.5MB in the beginning and 35.2MB in the end (delta: 6.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 39.73ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 33.3MB in the end (delta: 1.8MB). 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: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L82] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L98] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L100] CALL, EXPR f(IN) [L87] 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)=-0.6620636582374573, \result=-0.6147679090499878, x=-0.6620636582374573] [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.6620636582374573, \result=0.7889583110809326, x=-0.6620636582374573] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) VAL [IN=-0.6620636582374573, x=0.11715102195739746] [L109] reach_error() VAL [IN=-0.6620636582374573, x=0.11715102195739746] - 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 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 20.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 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, 40 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=33occurred 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, 10.0s 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! [2022-11-20 11:40:22,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8371e61c-6161-4ca5-9a52-b21324dae0fa/bin/uautomizer-ug76WZFUDN/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE