./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+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_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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_3dd99da8-85fc-4114-86b9-4457e99b1985/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 51dae543cdeecc21d2596d81d8a0111e0d035dad0e8735c007db6660549676ee --- 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 14:53:21,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:53:21,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:53:21,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:53:21,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:53:21,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:53:21,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:53:21,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:53:21,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:53:21,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:53:21,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:53:21,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:53:21,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:53:21,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:53:21,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:53:21,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:53:21,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:53:21,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:53:21,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:53:21,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:53:21,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:53:21,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:53:21,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:53:21,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:53:21,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:53:21,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:53:21,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:53:21,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:53:21,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:53:21,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:53:21,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:53:21,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:53:21,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:53:21,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:53:21,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:53:21,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:53:21,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:53:21,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:53:21,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:53:21,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:53:21,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:53:21,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:53:21,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:53:21,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:53:21,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:53:21,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:53:21,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:53:21,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:53:21,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:53:21,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:53:21,089 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:53:21,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:53:21,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:53:21,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:53:21,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:53:21,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:53:21,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:53:21,092 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:53:21,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:53:21,092 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:53:21,092 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_3dd99da8-85fc-4114-86b9-4457e99b1985/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51dae543cdeecc21d2596d81d8a0111e0d035dad0e8735c007db6660549676ee [2022-12-13 14:53:21,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:53:21,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:53:21,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:53:21,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:53:21,293 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:53:21,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_3+newton_1_4.i [2022-12-13 14:53:23,845 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:53:24,009 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:53:24,010 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i [2022-12-13 14:53:24,017 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/data/f5203d4fc/0cc994b182ac498cbf589a8aae78e725/FLAG955808442 [2022-12-13 14:53:24,405 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/data/f5203d4fc/0cc994b182ac498cbf589a8aae78e725 [2022-12-13 14:53:24,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:53:24,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:53:24,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:53:24,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:53:24,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:53:24,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b360de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24, skipping insertion in model container [2022-12-13 14:53:24,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:53:24,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:53:24,531 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_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i[1226,1239] [2022-12-13 14:53:24,546 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_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i[2820,2833] [2022-12-13 14:53:24,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:53:24,553 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:53:24,562 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_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i[1226,1239] [2022-12-13 14:53:24,568 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_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i[2820,2833] [2022-12-13 14:53:24,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:53:24,579 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:53:24,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24 WrapperNode [2022-12-13 14:53:24,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:53:24,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:53:24,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:53:24,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:53:24,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,604 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-12-13 14:53:24,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:53:24,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:53:24,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:53:24,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:53:24,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:53:24,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:53:24,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:53:24,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:53:24,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (1/1) ... [2022-12-13 14:53:24,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:53:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:53:24,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:53:24,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:53:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:53:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:53:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:53:24,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:53:24,726 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:53:24,727 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:53:24,828 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:53:24,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:53:24,833 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:53:24,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:24 BoogieIcfgContainer [2022-12-13 14:53:24,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:53:24,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:53:24,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:53:24,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:53:24,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:53:24" (1/3) ... [2022-12-13 14:53:24,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d339235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:53:24, skipping insertion in model container [2022-12-13 14:53:24,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:24" (2/3) ... [2022-12-13 14:53:24,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d339235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:53:24, skipping insertion in model container [2022-12-13 14:53:24,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:24" (3/3) ... [2022-12-13 14:53:24,842 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_4.i [2022-12-13 14:53:24,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:53:24,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:53:24,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:53:24,894 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;@eb18fa9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:53:24,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 14:53:24,897 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 14:53:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 14:53:24,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:24,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:24,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:53:24,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:24,909 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-13 14:53:24,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:53:24,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912194499] [2022-12-13 14:53:24,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:24,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:53:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:53:25,029 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 14:53:25,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:53:25,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912194499] [2022-12-13 14:53:25,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912194499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:53:25,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:53:25,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:53:25,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31031824] [2022-12-13 14:53:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:53:25,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:53:25,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:53:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:53:25,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:53:25,063 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 14:53:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:53:25,076 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-13 14:53:25,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:53:25,078 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 14:53:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:53:25,084 INFO L225 Difference]: With dead ends: 47 [2022-12-13 14:53:25,084 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 14:53:25,087 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 14:53:25,090 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 14:53:25,091 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 14:53:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 14:53:25,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 14:53:25,115 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 14:53:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 14:53:25,117 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-13 14:53:25,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:53:25,117 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 14:53:25,118 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 14:53:25,118 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 14:53:25,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 14:53:25,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:25,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:25,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:53:25,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:53:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-13 14:53:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:53:25,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067871433] [2022-12-13 14:53:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:25,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:53:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:53:25,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:53:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:53:25,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:53:25,171 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:53:25,173 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 14:53:25,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 14:53:25,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:53:25,177 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:53:25,180 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:53:25,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:53:25 BoogieIcfgContainer [2022-12-13 14:53:25,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:53:25,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:53:25,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:53:25,197 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:53:25,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:24" (3/4) ... [2022-12-13 14:53:25,200 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:53:25,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:53:25,200 INFO L158 Benchmark]: Toolchain (without parser) took 788.87ms. Allocated memory is still 159.4MB. Free memory was 126.5MB in the beginning and 75.1MB in the end (delta: 51.5MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-12-13 14:53:25,201 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:53:25,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.52ms. Allocated memory is still 159.4MB. Free memory was 126.5MB in the beginning and 114.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 14:53:25,202 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.36ms. Allocated memory is still 159.4MB. Free memory was 114.9MB in the beginning and 113.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:53:25,202 INFO L158 Benchmark]: Boogie Preprocessor took 16.27ms. Allocated memory is still 159.4MB. Free memory was 113.4MB in the beginning and 111.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:53:25,203 INFO L158 Benchmark]: RCFGBuilder took 212.45ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 100.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 14:53:25,203 INFO L158 Benchmark]: TraceAbstraction took 359.86ms. Allocated memory is still 159.4MB. Free memory was 99.6MB in the beginning and 75.1MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 14:53:25,204 INFO L158 Benchmark]: Witness Printer took 3.23ms. Allocated memory is still 159.4MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:53:25,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.52ms. Allocated memory is still 159.4MB. Free memory was 126.5MB in the beginning and 114.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.36ms. Allocated memory is still 159.4MB. Free memory was 114.9MB in the beginning and 113.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.27ms. Allocated memory is still 159.4MB. Free memory was 113.4MB in the beginning and 111.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 212.45ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 100.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 359.86ms. Allocated memory is still 159.4MB. Free memory was 99.6MB in the beginning and 75.1MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.23ms. Allocated memory is still 159.4MB. Free memory is still 75.1MB. 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: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 14:53:25,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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_3dd99da8-85fc-4114-86b9-4457e99b1985/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 51dae543cdeecc21d2596d81d8a0111e0d035dad0e8735c007db6660549676ee --- 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 14:53:27,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:53:27,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:53:27,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:53:27,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:53:27,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:53:27,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:53:27,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:53:27,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:53:27,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:53:27,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:53:27,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:53:27,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:53:27,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:53:27,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:53:27,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:53:27,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:53:27,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:53:27,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:53:27,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:53:27,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:53:27,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:53:27,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:53:27,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:53:27,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:53:27,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:53:27,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:53:27,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:53:27,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:53:27,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:53:27,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:53:27,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:53:27,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:53:27,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:53:27,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:53:27,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:53:27,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:53:27,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:53:27,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:53:27,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:53:27,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:53:27,129 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 14:53:27,151 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:53:27,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:53:27,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:53:27,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:53:27,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:53:27,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:53:27,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:53:27,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:53:27,153 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:53:27,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:53:27,154 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:53:27,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:53:27,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:53:27,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:53:27,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:53:27,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:53:27,154 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:53:27,155 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 14:53:27,155 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 14:53:27,155 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:53:27,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:53:27,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:53:27,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:53:27,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:53:27,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:53:27,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:53:27,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:53:27,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:53:27,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:53:27,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:53:27,156 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 14:53:27,156 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 14:53:27,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:53:27,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:53:27,157 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:53:27,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:53:27,157 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 14:53:27,157 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:53:27,157 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_3dd99da8-85fc-4114-86b9-4457e99b1985/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51dae543cdeecc21d2596d81d8a0111e0d035dad0e8735c007db6660549676ee [2022-12-13 14:53:27,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:53:27,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:53:27,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:53:27,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:53:27,415 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:53:27,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_3+newton_1_4.i [2022-12-13 14:53:29,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:53:30,068 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:53:30,068 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i [2022-12-13 14:53:30,074 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/data/e706d9277/40b2c4fffa574431a0d4379a650c888b/FLAG9f69b53ef [2022-12-13 14:53:30,086 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/data/e706d9277/40b2c4fffa574431a0d4379a650c888b [2022-12-13 14:53:30,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:53:30,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:53:30,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:53:30,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:53:30,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:53:30,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,096 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 02:53:30, skipping insertion in model container [2022-12-13 14:53:30,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:53:30,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:53:30,230 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_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i[1226,1239] [2022-12-13 14:53:30,255 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_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i[2820,2833] [2022-12-13 14:53:30,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:53:30,269 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:53:30,282 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_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i[1226,1239] [2022-12-13 14:53:30,290 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_3dd99da8-85fc-4114-86b9-4457e99b1985/sv-benchmarks/c/combinations/gcd_3+newton_1_4.i[2820,2833] [2022-12-13 14:53:30,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:53:30,303 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:53:30,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30 WrapperNode [2022-12-13 14:53:30,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:53:30,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:53:30,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:53:30,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:53:30,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,338 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-12-13 14:53:30,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:53:30,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:53:30,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:53:30,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:53:30,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,365 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:53:30,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:53:30,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:53:30,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:53:30,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (1/1) ... [2022-12-13 14:53:30,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:53:30,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:53:30,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:53:30,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:53:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:53:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 14:53:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:53:30,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:53:30,502 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:53:30,504 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:53:36,895 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:53:36,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:53:36,901 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:53:36,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:36 BoogieIcfgContainer [2022-12-13 14:53:36,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:53:36,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:53:36,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:53:36,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:53:36,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:53:30" (1/3) ... [2022-12-13 14:53:36,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b55a7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:53:36, skipping insertion in model container [2022-12-13 14:53:36,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:30" (2/3) ... [2022-12-13 14:53:36,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b55a7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:53:36, skipping insertion in model container [2022-12-13 14:53:36,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:36" (3/3) ... [2022-12-13 14:53:36,916 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_4.i [2022-12-13 14:53:36,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:53:36,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:53:36,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:53:36,964 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;@50cd995d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:53:36,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 14:53:36,967 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 14:53:36,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 14:53:36,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:36,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:36,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:53:36,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:36,975 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-13 14:53:36,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:53:36,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584198190] [2022-12-13 14:53:36,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:36,984 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 14:53:36,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:53:36,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 14:53:36,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 14:53:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:53:38,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 14:53:38,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:53:38,104 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 14:53:38,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:53:38,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:53:38,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584198190] [2022-12-13 14:53:38,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584198190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:53:38,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:53:38,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:53:38,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248470808] [2022-12-13 14:53:38,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:53:38,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:53:38,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:53:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:53:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:53:38,136 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 14:53:38,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:53:38,147 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-13 14:53:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:53:38,149 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 14:53:38,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:53:38,154 INFO L225 Difference]: With dead ends: 47 [2022-12-13 14:53:38,154 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 14:53:38,156 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 14:53:38,158 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 14:53:38,158 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 14:53:38,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 14:53:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 14:53:38,177 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 14:53:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 14:53:38,179 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-13 14:53:38,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:53:38,179 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 14:53:38,179 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 14:53:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 14:53:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 14:53:38,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:38,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:38,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 14:53:38,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 14:53:38,382 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:53:38,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:38,384 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-13 14:53:38,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:53:38,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661209989] [2022-12-13 14:53:38,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:38,387 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 14:53:38,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:53:38,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 14:53:38,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 14:53:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:53:42,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:54:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:54:27,940 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 14:54:27,940 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:54:27,941 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 14:54:27,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 14:54:27,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 14:54:28,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 14:54:28,147 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:54:28,151 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:54:28,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:54:28 BoogieIcfgContainer [2022-12-13 14:54:28,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:54:28,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:54:28,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:54:28,182 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:54:28,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:36" (3/4) ... [2022-12-13 14:54:28,184 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 14:54:28,208 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:54:28,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:54:28,209 INFO L158 Benchmark]: Toolchain (without parser) took 58118.84ms. Allocated memory is still 96.5MB. Free memory was 72.2MB in the beginning and 59.2MB in the end (delta: 13.0MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-12-13 14:54:28,209 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 28.8MB in the beginning and 28.7MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:54:28,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.47ms. Allocated memory is still 96.5MB. Free memory was 71.9MB in the beginning and 60.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 14:54:28,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.95ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 58.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:54:28,210 INFO L158 Benchmark]: Boogie Preprocessor took 32.32ms. Allocated memory is still 96.5MB. Free memory was 58.2MB in the beginning and 56.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:54:28,210 INFO L158 Benchmark]: RCFGBuilder took 6530.96ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 44.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 14:54:28,210 INFO L158 Benchmark]: TraceAbstraction took 51276.64ms. Allocated memory is still 96.5MB. Free memory was 43.7MB in the beginning and 60.9MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:54:28,210 INFO L158 Benchmark]: Witness Printer took 26.53ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 59.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:54:28,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 28.8MB in the beginning and 28.7MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.47ms. Allocated memory is still 96.5MB. Free memory was 71.9MB in the beginning and 60.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.95ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 58.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.32ms. Allocated memory is still 96.5MB. Free memory was 58.2MB in the beginning and 56.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6530.96ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 44.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 51276.64ms. Allocated memory is still 96.5MB. Free memory was 43.7MB in the beginning and 60.9MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 26.53ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 59.2MB in the end (delta: 1.7MB). 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 - 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)=-0.7484505772590637, \result=-0.6805562376976013, x=-0.7484505772590637] [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)=-0.7484505772590637, \result=0.7332299947738647, x=-0.7484505772590637] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.7484505772590637, x=0.1797114610671997] [L102] reach_error() VAL [IN=-0.7484505772590637, x=0.1797114610671997] - 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: 51.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.3s 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 14:54:28,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd99da8-85fc-4114-86b9-4457e99b1985/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE