./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:27:29,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:27:29,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:27:29,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:27:29,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:27:29,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:27:29,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:27:29,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:27:29,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:27:29,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:27:29,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:27:29,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:27:29,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:27:29,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:27:29,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:27:29,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:27:29,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:27:29,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:27:29,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:27:29,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:27:29,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:27:29,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:27:29,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:27:29,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:27:29,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:27:29,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:27:29,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:27:29,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:27:29,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:27:29,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:27:29,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:27:29,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:27:29,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:27:29,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:27:29,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:27:29,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:27:29,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:27:29,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:27:29,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:27:29,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:27:29,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:27:29,476 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:27:29,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:27:29,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:27:29,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:27:29,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:27:29,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:27:29,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:27:29,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:27:29,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:27:29,500 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:27:29,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:27:29,500 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:27:29,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:27:29,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:27:29,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:27:29,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:27:29,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:27:29,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:27:29,502 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:27:29,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:27:29,502 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:27:29,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:27:29,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:27:29,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:27:29,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:27:29,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:27:29,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:27:29,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:27:29,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:27:29,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:27:29,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:27:29,503 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:27:29,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:27:29,504 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:27:29,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:27:29,504 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:27:29,504 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 [2022-12-13 12:27:29,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:27:29,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:27:29,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:27:29,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:27:29,732 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:27:29,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i [2022-12-13 12:27:32,285 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:27:32,412 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:27:32,413 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i [2022-12-13 12:27:32,418 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/data/f89a5b2a1/1714b90c242d4ea7867ce443b36d804b/FLAG406ee6bf9 [2022-12-13 12:27:32,840 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/data/f89a5b2a1/1714b90c242d4ea7867ce443b36d804b [2022-12-13 12:27:32,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:27:32,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:27:32,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:27:32,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:27:32,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:27:32,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:27:32" (1/1) ... [2022-12-13 12:27:32,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e883c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:32, skipping insertion in model container [2022-12-13 12:27:32,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:27:32" (1/1) ... [2022-12-13 12:27:32,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:27:32,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:27:32,978 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_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239] [2022-12-13 12:27:32,993 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_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799] [2022-12-13 12:27:32,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:27:33,001 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:27:33,010 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_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239] [2022-12-13 12:27:33,016 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_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799] [2022-12-13 12:27:33,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:27:33,026 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:27:33,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33 WrapperNode [2022-12-13 12:27:33,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:27:33,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:27:33,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:27:33,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:27:33,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,053 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-12-13 12:27:33,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:27:33,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:27:33,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:27:33,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:27:33,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:27:33,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:27:33,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:27:33,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:27:33,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (1/1) ... [2022-12-13 12:27:33,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:27:33,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:27:33,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:27:33,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:27:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:27:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:27:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:27:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:27:33,183 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:27:33,185 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:27:33,292 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:27:33,298 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:27:33,298 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 12:27:33,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:27:33 BoogieIcfgContainer [2022-12-13 12:27:33,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:27:33,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:27:33,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:27:33,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:27:33,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:27:32" (1/3) ... [2022-12-13 12:27:33,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9f05c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:27:33, skipping insertion in model container [2022-12-13 12:27:33,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:33" (2/3) ... [2022-12-13 12:27:33,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9f05c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:27:33, skipping insertion in model container [2022-12-13 12:27:33,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:27:33" (3/3) ... [2022-12-13 12:27:33,306 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_4.i [2022-12-13 12:27:33,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:27:33,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:27:33,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:27:33,358 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;@41cac397, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:27:33,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:27:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:27:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 12:27:33,366 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:27:33,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:27:33,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:27:33,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:27:33,371 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-13 12:27:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:27:33,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458307720] [2022-12-13 12:27:33,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:27:33,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:27:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:27:33,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:27:33,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:27:33,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458307720] [2022-12-13 12:27:33,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458307720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:27:33,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:27:33,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:27:33,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874284991] [2022-12-13 12:27:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:27:33,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:27:33,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:27:33,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:27:33,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:27:33,518 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:27:33,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:27:33,530 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-12-13 12:27:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:27:33,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 12:27:33,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:27:33,537 INFO L225 Difference]: With dead ends: 46 [2022-12-13 12:27:33,537 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 12:27:33,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:27:33,542 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:27:33,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:27:33,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 12:27:33,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 12:27:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:27:33,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 12:27:33,565 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-13 12:27:33,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:27:33,565 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 12:27:33,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:27:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 12:27:33,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 12:27:33,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:27:33,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:27:33,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:27:33,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:27:33,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:27:33,567 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-13 12:27:33,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:27:33,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395687251] [2022-12-13 12:27:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:27:33,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:27:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:27:33,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:27:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:27:33,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:27:33,605 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:27:33,607 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 12:27:33,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 12:27:33,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:27:33,611 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:27:33,614 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:27:33,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:27:33 BoogieIcfgContainer [2022-12-13 12:27:33,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:27:33,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:27:33,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:27:33,627 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:27:33,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:27:33" (3/4) ... [2022-12-13 12:27:33,630 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:27:33,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:27:33,631 INFO L158 Benchmark]: Toolchain (without parser) took 787.83ms. Allocated memory is still 136.3MB. Free memory was 97.0MB in the beginning and 97.6MB in the end (delta: -596.9kB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-12-13 12:27:33,631 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 136.3MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:27:33,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.60ms. Allocated memory is still 136.3MB. Free memory was 96.7MB in the beginning and 85.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:27:33,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.23ms. Allocated memory is still 136.3MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:27:33,632 INFO L158 Benchmark]: Boogie Preprocessor took 16.74ms. Allocated memory is still 136.3MB. Free memory was 83.4MB in the beginning and 82.0MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:27:33,632 INFO L158 Benchmark]: RCFGBuilder took 227.97ms. Allocated memory is still 136.3MB. Free memory was 82.0MB in the beginning and 70.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:27:33,633 INFO L158 Benchmark]: TraceAbstraction took 325.06ms. Allocated memory is still 136.3MB. Free memory was 69.5MB in the beginning and 97.9MB in the end (delta: -28.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:27:33,633 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 136.3MB. Free memory was 97.9MB in the beginning and 97.6MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:27:33,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 136.3MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.60ms. Allocated memory is still 136.3MB. Free memory was 96.7MB in the beginning and 85.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.23ms. Allocated memory is still 136.3MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.74ms. Allocated memory is still 136.3MB. Free memory was 83.4MB in the beginning and 82.0MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 227.97ms. Allocated memory is still 136.3MB. Free memory was 82.0MB in the beginning and 70.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 325.06ms. Allocated memory is still 136.3MB. Free memory was 69.5MB in the beginning and 97.9MB in the end (delta: -28.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 136.3MB. Free memory was 97.9MB in the beginning and 97.6MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=109, x=109] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=109, x=109] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=109] [L102] reach_error() VAL [IN=109] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:27:33,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:27:35,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:27:35,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:27:35,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:27:35,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:27:35,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:27:35,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:27:35,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:27:35,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:27:35,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:27:35,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:27:35,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:27:35,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:27:35,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:27:35,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:27:35,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:27:35,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:27:35,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:27:35,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:27:35,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:27:35,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:27:35,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:27:35,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:27:35,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:27:35,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:27:35,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:27:35,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:27:35,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:27:35,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:27:35,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:27:35,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:27:35,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:27:35,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:27:35,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:27:35,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:27:35,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:27:35,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:27:35,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:27:35,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:27:35,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:27:35,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:27:35,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 12:27:35,268 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:27:35,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:27:35,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:27:35,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:27:35,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:27:35,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:27:35,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:27:35,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:27:35,270 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:27:35,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:27:35,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:27:35,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:27:35,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:27:35,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:27:35,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:27:35,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:27:35,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:27:35,272 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:27:35,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:27:35,273 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:27:35,273 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:27:35,273 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 [2022-12-13 12:27:35,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:27:35,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:27:35,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:27:35,500 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:27:35,500 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:27:35,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i [2022-12-13 12:27:37,982 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:27:38,123 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:27:38,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i [2022-12-13 12:27:38,129 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/data/b0196f8e2/2e4fbdefeb604a8d86a6543874ce2169/FLAGc2871c09b [2022-12-13 12:27:38,141 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/data/b0196f8e2/2e4fbdefeb604a8d86a6543874ce2169 [2022-12-13 12:27:38,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:27:38,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:27:38,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:27:38,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:27:38,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:27:38,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76688b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38, skipping insertion in model container [2022-12-13 12:27:38,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:27:38,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:27:38,276 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_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239] [2022-12-13 12:27:38,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799] [2022-12-13 12:27:38,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:27:38,304 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:27:38,314 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_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239] [2022-12-13 12:27:38,320 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_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799] [2022-12-13 12:27:38,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:27:38,332 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:27:38,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38 WrapperNode [2022-12-13 12:27:38,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:27:38,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:27:38,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:27:38,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:27:38,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,364 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-12-13 12:27:38,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:27:38,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:27:38,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:27:38,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:27:38,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,390 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:27:38,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:27:38,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:27:38,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:27:38,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (1/1) ... [2022-12-13 12:27:38,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:27:38,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:27:38,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:27:38,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:27:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:27:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:27:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:27:38,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:27:38,509 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:27:38,510 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:27:45,038 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:27:45,044 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:27:45,044 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 12:27:45,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:27:45 BoogieIcfgContainer [2022-12-13 12:27:45,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:27:45,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:27:45,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:27:45,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:27:45,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:27:38" (1/3) ... [2022-12-13 12:27:45,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f62b330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:27:45, skipping insertion in model container [2022-12-13 12:27:45,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:27:38" (2/3) ... [2022-12-13 12:27:45,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f62b330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:27:45, skipping insertion in model container [2022-12-13 12:27:45,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:27:45" (3/3) ... [2022-12-13 12:27:45,056 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_4.i [2022-12-13 12:27:45,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:27:45,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:27:45,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:27:45,114 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;@4e393ea5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:27:45,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:27:45,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:27:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 12:27:45,122 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:27:45,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:27:45,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:27:45,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:27:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-13 12:27:45,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:27:45,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240638323] [2022-12-13 12:27:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:27:45,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:27:45,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:27:45,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:27:45,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 12:27:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:27:46,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 12:27:46,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:27:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:27:46,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:27:46,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:27:46,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240638323] [2022-12-13 12:27:46,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240638323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:27:46,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:27:46,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:27:46,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332664877] [2022-12-13 12:27:46,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:27:46,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:27:46,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:27:46,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:27:46,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:27:46,279 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:27:46,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:27:46,290 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-12-13 12:27:46,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:27:46,292 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 12:27:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:27:46,297 INFO L225 Difference]: With dead ends: 46 [2022-12-13 12:27:46,297 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 12:27:46,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:27:46,301 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:27:46,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:27:46,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 12:27:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 12:27:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:27:46,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 12:27:46,322 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-13 12:27:46,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:27:46,322 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 12:27:46,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:27:46,323 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 12:27:46,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 12:27:46,323 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:27:46,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:27:46,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:27:46,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:27:46,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:27:46,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:27:46,527 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-13 12:27:46,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:27:46,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937332001] [2022-12-13 12:27:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:27:46,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:27:46,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:27:46,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:27:46,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 12:27:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:27:49,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:27:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:27:58,254 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:27:58,255 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:27:58,256 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 12:27:58,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 12:27:58,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-13 12:27:58,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:27:58,468 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:27:58,479 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:27:58,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:27:58 BoogieIcfgContainer [2022-12-13 12:27:58,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:27:58,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:27:58,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:27:58,520 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:27:58,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:27:45" (3/4) ... [2022-12-13 12:27:58,522 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 12:27:58,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:27:58,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:27:58,552 INFO L158 Benchmark]: Toolchain (without parser) took 20408.51ms. Allocated memory is still 79.7MB. Free memory was 51.7MB in the beginning and 55.6MB in the end (delta: -3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:27:58,552 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 52.4MB. Free memory is still 31.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:27:58,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.52ms. Allocated memory is still 79.7MB. Free memory was 51.5MB in the beginning and 39.7MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:27:58,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.02ms. Allocated memory is still 79.7MB. Free memory was 39.4MB in the beginning and 37.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:27:58,553 INFO L158 Benchmark]: Boogie Preprocessor took 27.75ms. Allocated memory is still 79.7MB. Free memory was 37.6MB in the beginning and 59.4MB in the end (delta: -21.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-12-13 12:27:58,553 INFO L158 Benchmark]: RCFGBuilder took 6653.49ms. Allocated memory is still 79.7MB. Free memory was 59.4MB in the beginning and 47.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 12:27:58,554 INFO L158 Benchmark]: TraceAbstraction took 13469.44ms. Allocated memory is still 79.7MB. Free memory was 46.5MB in the beginning and 57.7MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:27:58,554 INFO L158 Benchmark]: Witness Printer took 32.01ms. Allocated memory is still 79.7MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:27:58,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 52.4MB. Free memory is still 31.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.52ms. Allocated memory is still 79.7MB. Free memory was 51.5MB in the beginning and 39.7MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.02ms. Allocated memory is still 79.7MB. Free memory was 39.4MB in the beginning and 37.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.75ms. Allocated memory is still 79.7MB. Free memory was 37.6MB in the beginning and 59.4MB in the end (delta: -21.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 6653.49ms. Allocated memory is still 79.7MB. Free memory was 59.4MB in the beginning and 47.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13469.44ms. Allocated memory is still 79.7MB. Free memory was 46.5MB in the beginning and 57.7MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 32.01ms. Allocated memory is still 79.7MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.7895351648330688, \result=-0.7101016044616699, x=-0.7895351648330688] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7895351648330688, \result=0.70484459400177, x=-0.7895351648330688] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.7895351648330688, x=0.21792328357696533] [L102] reach_error() VAL [IN=-0.7895351648330688, x=0.21792328357696533] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:27:58,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6efed6ec-cfc7-4e33-8e8d-86b02b953b50/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE