./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_1_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8 --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 b9d0e0bc78588895b656add1d66063876198ef9d2f1361e4e477992579946f34 --- 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-e04fb08 [2022-11-16 12:35:13,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:35:13,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:35:13,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:35:13,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:35:13,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:35:13,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:35:13,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:35:13,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:35:13,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:35:13,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:35:13,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:35:13,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:35:13,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:35:13,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:35:13,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:35:13,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:35:13,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:35:13,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:35:13,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:35:13,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:35:13,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:35:13,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:35:13,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:35:14,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:35:14,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:35:14,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:35:14,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:35:14,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:35:14,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:35:14,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:35:14,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:35:14,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:35:14,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:35:14,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:35:14,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:35:14,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:35:14,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:35:14,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:35:14,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:35:14,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:35:14,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:35:14,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:35:14,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:35:14,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:35:14,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:35:14,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:35:14,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:35:14,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:35:14,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:35:14,056 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:35:14,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:35:14,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:35:14,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:35:14,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:35:14,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:35:14,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:35:14,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:35:14,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:35:14,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:35:14,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:35:14,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:35:14,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:35:14,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:35:14,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:35:14,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:35:14,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:14,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:35:14,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:35:14,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:35:14,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:35:14,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:35:14,060 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:35:14,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:35:14,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:35:14,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d0e0bc78588895b656add1d66063876198ef9d2f1361e4e477992579946f34 [2022-11-16 12:35:14,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:35:14,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:35:14,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:35:14,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:35:14,336 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:35:14,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/combinations/gcd_2+newton_1_3.i [2022-11-16 12:35:14,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data/6c9362e7f/f7bd291d696c48fba71a920583ac7a9f/FLAG45ce00d80 [2022-11-16 12:35:14,844 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:35:14,845 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i [2022-11-16 12:35:14,855 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data/6c9362e7f/f7bd291d696c48fba71a920583ac7a9f/FLAG45ce00d80 [2022-11-16 12:35:15,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data/6c9362e7f/f7bd291d696c48fba71a920583ac7a9f [2022-11-16 12:35:15,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:35:15,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:35:15,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:15,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:35:15,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:35:15,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3def2cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15, skipping insertion in model container [2022-11-16 12:35:15,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:35:15,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:35:15,533 WARN L229 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_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i[1226,1239] [2022-11-16 12:35:15,558 WARN L229 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_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i[2820,2833] [2022-11-16 12:35:15,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:15,569 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:35:15,582 WARN L229 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_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i[1226,1239] [2022-11-16 12:35:15,593 WARN L229 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_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i[2820,2833] [2022-11-16 12:35:15,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:15,618 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:35:15,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15 WrapperNode [2022-11-16 12:35:15,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:15,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:15,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:35:15,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:35:15,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,673 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-11-16 12:35:15,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:15,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:35:15,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:35:15,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:35:15,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,713 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:35:15,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:35:15,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:35:15,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:35:15,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (1/1) ... [2022-11-16 12:35:15,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:15,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:15,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:15,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:35:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:35:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:35:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:35:15,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:35:15,887 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:35:15,890 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:35:16,048 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:35:16,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:35:16,054 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:35:16,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:16 BoogieIcfgContainer [2022-11-16 12:35:16,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:35:16,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:35:16,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:35:16,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:35:16,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:35:15" (1/3) ... [2022-11-16 12:35:16,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20682620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:16, skipping insertion in model container [2022-11-16 12:35:16,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:15" (2/3) ... [2022-11-16 12:35:16,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20682620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:16, skipping insertion in model container [2022-11-16 12:35:16,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:16" (3/3) ... [2022-11-16 12:35:16,081 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_3.i [2022-11-16 12:35:16,099 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:35:16,099 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:35:16,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:35:16,166 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;@322f3fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:35:16,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 12:35:16,170 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) [2022-11-16 12:35:16,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:35:16,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:16,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:16,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:16,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:16,186 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-11-16 12:35:16,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:16,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585796032] [2022-11-16 12:35:16,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:16,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:16,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:16,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585796032] [2022-11-16 12:35:16,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585796032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:16,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:16,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:35:16,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501169913] [2022-11-16 12:35:16,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:16,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:35:16,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:16,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:35:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:35:16,496 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) [2022-11-16 12:35:16,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:35:16,518 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-11-16 12:35:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:35:16,521 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:35:16,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:35:16,531 INFO L225 Difference]: With dead ends: 47 [2022-11-16 12:35:16,531 INFO L226 Difference]: Without dead ends: 19 [2022-11-16 12:35:16,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:35:16,540 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 [2022-11-16 12:35:16,543 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] [2022-11-16 12:35:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-16 12:35:16,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-16 12:35:16,568 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) [2022-11-16 12:35:16,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-16 12:35:16,571 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-11-16 12:35:16,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:35:16,571 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-16 12:35:16,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:16,572 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-16 12:35:16,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:35:16,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:16,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:16,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:35:16,574 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:16,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:16,575 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-11-16 12:35:16,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:16,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947180574] [2022-11-16 12:35:16,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:16,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:16,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:35:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:16,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:35:16,649 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:35:16,650 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-16 12:35:16,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-16 12:35:16,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:35:16,661 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 12:35:16,666 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:35:16,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:35:16 BoogieIcfgContainer [2022-11-16 12:35:16,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:35:16,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:35:16,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:35:16,700 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:35:16,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:16" (3/4) ... [2022-11-16 12:35:16,703 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:35:16,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:35:16,708 INFO L158 Benchmark]: Toolchain (without parser) took 1456.76ms. Allocated memory is still 138.4MB. Free memory was 103.6MB in the beginning and 73.9MB in the end (delta: 29.7MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-11-16 12:35:16,708 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 73.4MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:35:16,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.66ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 114.3MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:35:16,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.90ms. Allocated memory is still 138.4MB. Free memory was 114.3MB in the beginning and 112.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:35:16,716 INFO L158 Benchmark]: Boogie Preprocessor took 52.70ms. Allocated memory is still 138.4MB. Free memory was 112.3MB in the beginning and 110.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:35:16,717 INFO L158 Benchmark]: RCFGBuilder took 328.50ms. Allocated memory is still 138.4MB. Free memory was 110.9MB in the beginning and 99.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:35:16,717 INFO L158 Benchmark]: TraceAbstraction took 639.66ms. Allocated memory is still 138.4MB. Free memory was 98.4MB in the beginning and 74.6MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 12:35:16,717 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 138.4MB. Free memory was 74.6MB in the beginning and 73.9MB in the end (delta: 700.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:35:16,725 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 73.4MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.66ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 114.3MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.90ms. Allocated memory is still 138.4MB. Free memory was 114.3MB in the beginning and 112.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.70ms. Allocated memory is still 138.4MB. Free memory was 112.3MB in the beginning and 110.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 328.50ms. Allocated memory is still 138.4MB. Free memory was 110.9MB in the beginning and 99.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 639.66ms. Allocated memory is still 138.4MB. Free memory was 98.4MB in the beginning and 74.6MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 138.4MB. Free memory was 74.6MB in the beginning and 73.9MB in the end (delta: 700.8kB). 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 > -0.6f && IN < 0.6f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 12:35:16,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/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_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8 --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 b9d0e0bc78588895b656add1d66063876198ef9d2f1361e4e477992579946f34 --- 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-e04fb08 [2022-11-16 12:35:18,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:35:18,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:35:18,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:35:18,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:35:18,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:35:18,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:35:18,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:35:18,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:35:19,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:35:19,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:35:19,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:35:19,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:35:19,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:35:19,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:35:19,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:35:19,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:35:19,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:35:19,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:35:19,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:35:19,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:35:19,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:35:19,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:35:19,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:35:19,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:35:19,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:35:19,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:35:19,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:35:19,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:35:19,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:35:19,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:35:19,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:35:19,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:35:19,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:35:19,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:35:19,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:35:19,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:35:19,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:35:19,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:35:19,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:35:19,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:35:19,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 12:35:19,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:35:19,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:35:19,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:35:19,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:35:19,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:35:19,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:35:19,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:35:19,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:35:19,117 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:35:19,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:35:19,118 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:35:19,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:35:19,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:35:19,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:35:19,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:35:19,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:35:19,119 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:35:19,120 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:35:19,120 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:35:19,120 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:35:19,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:35:19,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:35:19,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:35:19,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:35:19,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:35:19,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:35:19,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:19,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:35:19,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:35:19,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:35:19,122 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:35:19,123 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:35:19,123 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:35:19,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:35:19,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:35:19,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:35:19,124 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d0e0bc78588895b656add1d66063876198ef9d2f1361e4e477992579946f34 [2022-11-16 12:35:19,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:35:19,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:35:19,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:35:19,480 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:35:19,481 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:35:19,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/combinations/gcd_2+newton_1_3.i [2022-11-16 12:35:19,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data/e4fa31b59/102be4424bfe41af8f84d6b5d763577e/FLAG310e2ee56 [2022-11-16 12:35:20,111 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:35:20,112 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i [2022-11-16 12:35:20,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data/e4fa31b59/102be4424bfe41af8f84d6b5d763577e/FLAG310e2ee56 [2022-11-16 12:35:20,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/data/e4fa31b59/102be4424bfe41af8f84d6b5d763577e [2022-11-16 12:35:20,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:35:20,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:35:20,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:20,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:35:20,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:35:20,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53862008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20, skipping insertion in model container [2022-11-16 12:35:20,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:35:20,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:35:20,657 WARN L229 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_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i[1226,1239] [2022-11-16 12:35:20,683 WARN L229 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_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i[2820,2833] [2022-11-16 12:35:20,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:20,742 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:35:20,760 WARN L229 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_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i[1226,1239] [2022-11-16 12:35:20,788 WARN L229 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_576bac63-90cd-4191-84bb-a135813be0b0/sv-benchmarks/c/combinations/gcd_2+newton_1_3.i[2820,2833] [2022-11-16 12:35:20,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:20,818 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:35:20,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20 WrapperNode [2022-11-16 12:35:20,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:20,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:20,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:35:20,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:35:20,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,895 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-11-16 12:35:20,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:20,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:35:20,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:35:20,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:35:20,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:35:20,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:35:20,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:35:20,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:35:20,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (1/1) ... [2022-11-16 12:35:20,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:20,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:21,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:21,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:35:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:35:21,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:35:21,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:35:21,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:35:21,177 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:35:21,179 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:35:28,146 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:35:28,152 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:35:28,153 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:35:28,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:28 BoogieIcfgContainer [2022-11-16 12:35:28,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:35:28,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:35:28,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:35:28,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:35:28,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:35:20" (1/3) ... [2022-11-16 12:35:28,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3376536b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:28, skipping insertion in model container [2022-11-16 12:35:28,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:20" (2/3) ... [2022-11-16 12:35:28,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3376536b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:28, skipping insertion in model container [2022-11-16 12:35:28,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:28" (3/3) ... [2022-11-16 12:35:28,167 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_3.i [2022-11-16 12:35:28,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:35:28,187 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:35:28,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:35:28,261 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;@2caab44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:35:28,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 12:35:28,266 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) [2022-11-16 12:35:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:35:28,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:28,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:28,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:28,286 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-11-16 12:35:28,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:35:28,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009588324] [2022-11-16 12:35:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:28,303 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:35:28,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:35:28,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:35:28,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:35:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:29,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:35:29,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:35:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:29,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:35:29,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:35:29,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009588324] [2022-11-16 12:35:29,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009588324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:29,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:29,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:35:29,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576949757] [2022-11-16 12:35:29,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:29,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:35:29,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:35:29,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:35:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:35:29,827 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) [2022-11-16 12:35:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:35:29,850 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-11-16 12:35:29,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:35:29,856 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:35:29,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:35:29,865 INFO L225 Difference]: With dead ends: 47 [2022-11-16 12:35:29,866 INFO L226 Difference]: Without dead ends: 19 [2022-11-16 12:35:29,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:35:29,886 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 [2022-11-16 12:35:29,888 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] [2022-11-16 12:35:29,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-16 12:35:29,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-16 12:35:29,924 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) [2022-11-16 12:35:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-16 12:35:29,928 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-11-16 12:35:29,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:35:29,929 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-16 12:35:29,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:29,929 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-16 12:35:29,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:35:29,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:29,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:29,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:30,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:35:30,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:30,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:30,162 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-11-16 12:35:30,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:35:30,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430526954] [2022-11-16 12:35:30,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:30,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:35:30,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:35:30,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:35:30,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576bac63-90cd-4191-84bb-a135813be0b0/bin/uautomizer-tPACEb0tL8/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