./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_3_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf7f7457cdd0c5557ed6396b1b77324a2673e1bc1f66f80f06950a47fe88485c --- 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-dbf71c6-m [2022-10-17 17:37:36,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:37:36,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:37:36,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:37:36,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:37:36,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:37:36,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:37:36,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:37:36,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:37:36,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:37:36,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:37:36,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:37:36,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:37:36,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:37:36,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:37:36,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:37:36,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:37:36,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:37:36,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:37:36,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:37:36,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:37:36,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:37:36,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:37:36,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:37:36,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:37:36,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:37:36,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:37:36,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:37:36,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:37:36,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:37:36,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:37:36,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:37:36,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:37:36,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:37:36,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:37:36,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:37:36,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:37:36,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:37:36,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:37:36,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:37:36,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:37:36,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:37:36,375 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:37:36,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:37:36,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:37:36,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:37:36,377 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:37:36,377 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:37:36,378 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:37:36,378 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:37:36,378 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:37:36,378 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:37:36,388 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:37:36,388 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:37:36,388 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:37:36,388 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:37:36,389 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:37:36,389 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:37:36,389 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:37:36,389 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:37:36,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:37:36,390 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:37:36,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:37:36,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:37:36,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:37:36,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:37:36,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:37:36,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:37:36,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:37:36,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:37:36,392 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:37:36,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:37:36,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:37:36,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:37:36,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:37:36,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:37:36,394 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:37:36,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:37:36,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:37:36,395 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:37:36,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:37:36,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:37:36,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:37:36,396 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_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf7f7457cdd0c5557ed6396b1b77324a2673e1bc1f66f80f06950a47fe88485c [2022-10-17 17:37:36,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:37:36,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:37:36,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:37:36,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:37:36,681 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:37:36,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/combinations/gcd_2+newton_3_3.i [2022-10-17 17:37:36,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/data/6f1b17fc3/418070fbb23d4f9b8170fde9e8f86189/FLAG424107e24 [2022-10-17 17:37:37,199 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:37:37,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/sv-benchmarks/c/combinations/gcd_2+newton_3_3.i [2022-10-17 17:37:37,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/data/6f1b17fc3/418070fbb23d4f9b8170fde9e8f86189/FLAG424107e24 [2022-10-17 17:37:37,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/data/6f1b17fc3/418070fbb23d4f9b8170fde9e8f86189 [2022-10-17 17:37:37,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:37:37,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:37:37,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:37:37,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:37:37,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:37:37,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bca8acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37, skipping insertion in model container [2022-10-17 17:37:37,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:37:37,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:37:37,825 WARN L230 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_216ecabe-b444-4016-a720-988f7e8ee52f/sv-benchmarks/c/combinations/gcd_2+newton_3_3.i[1226,1239] [2022-10-17 17:37:37,855 WARN L230 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_216ecabe-b444-4016-a720-988f7e8ee52f/sv-benchmarks/c/combinations/gcd_2+newton_3_3.i[2862,2875] [2022-10-17 17:37:37,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:37,866 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:37:37,879 WARN L230 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_216ecabe-b444-4016-a720-988f7e8ee52f/sv-benchmarks/c/combinations/gcd_2+newton_3_3.i[1226,1239] [2022-10-17 17:37:37,890 WARN L230 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_216ecabe-b444-4016-a720-988f7e8ee52f/sv-benchmarks/c/combinations/gcd_2+newton_3_3.i[2862,2875] [2022-10-17 17:37:37,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:37,906 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:37:37,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37 WrapperNode [2022-10-17 17:37:37,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:37:37,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:37:37,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:37:37,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:37:37,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,947 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 82 [2022-10-17 17:37:37,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:37:37,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:37:37,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:37:37,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:37:37,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,972 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:37:37,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:37:37,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:37:37,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:37:37,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (1/1) ... [2022-10-17 17:37:37,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:37:38,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:37:38,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:37:38,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:37:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:37:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-10-17 17:37:38,076 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-10-17 17:37:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-10-17 17:37:38,077 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-10-17 17:37:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:37:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:37:38,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:37:38,155 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:37:38,157 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:37:38,430 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:37:38,498 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:37:38,499 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:37:38,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:37:38 BoogieIcfgContainer [2022-10-17 17:37:38,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:37:38,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:37:38,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:37:38,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:37:38,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:37:37" (1/3) ... [2022-10-17 17:37:38,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c70c69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:37:38, skipping insertion in model container [2022-10-17 17:37:38,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:37" (2/3) ... [2022-10-17 17:37:38,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c70c69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:37:38, skipping insertion in model container [2022-10-17 17:37:38,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:37:38" (3/3) ... [2022-10-17 17:37:38,522 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_3_3.i [2022-10-17 17:37:38,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:37:38,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 17:37:38,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:37:38,605 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=FINITE_AUTOMATA, 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;@2e794e7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:37:38,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 17:37:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 17:37:38,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:37:38,618 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:38,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-17 17:37:38,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:38,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:38,625 INFO L85 PathProgramCache]: Analyzing trace with hash -291944571, now seen corresponding path program 1 times [2022-10-17 17:37:38,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:38,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903582201] [2022-10-17 17:37:38,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:38,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:37:39,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:37:39,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903582201] [2022-10-17 17:37:39,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903582201] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:37:39,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:37:39,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:37:39,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079596160] [2022-10-17 17:37:39,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:37:39,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:37:39,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:37:39,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:37:39,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:37:39,195 INFO L87 Difference]: Start difference. First operand has 28 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-10-17 17:37:39,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:37:39,327 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-10-17 17:37:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:37:39,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-10-17 17:37:39,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:37:39,338 INFO L225 Difference]: With dead ends: 41 [2022-10-17 17:37:39,338 INFO L226 Difference]: Without dead ends: 24 [2022-10-17 17:37:39,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:37:39,352 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:37:39,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 67 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:37:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-17 17:37:39,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-10-17 17:37:39,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 17:37:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-10-17 17:37:39,411 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 6 [2022-10-17 17:37:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:37:39,413 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-10-17 17:37:39,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-10-17 17:37:39,413 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-10-17 17:37:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:37:39,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:39,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:37:39,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:37:39,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:39,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:39,420 INFO L85 PathProgramCache]: Analyzing trace with hash -533010262, now seen corresponding path program 1 times [2022-10-17 17:37:39,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:39,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930204031] [2022-10-17 17:37:39,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:39,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:39,449 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:37:39,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361722735] [2022-10-17 17:37:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:39,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:37:39,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:37:39,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:37:39,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:37:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:39,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 17:37:39,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:37:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:37:40,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:37:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:37:40,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:37:40,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930204031] [2022-10-17 17:37:40,150 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:37:40,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361722735] [2022-10-17 17:37:40,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361722735] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:37:40,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [433612437] [2022-10-17 17:37:40,187 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-10-17 17:37:40,187 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:37:40,192 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:37:40,202 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:37:40,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:37:40,461 INFO L180 IcfgInterpreter]: Interpretation finished [2022-10-17 17:37:40,825 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '172#(and (= |ULTIMATE.start_gcd_test_~b#1| 0) (<= 0 (+ |ULTIMATE.start_gcd_test_#in~b#1| 128)) (<= |ULTIMATE.start_gcd_test_#in~a#1| 127) (<= |ULTIMATE.start_main1_~x~0#1| 127) (<= |ULTIMATE.start_gcd_test_#in~b#1| 127) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (< 0 |ULTIMATE.start_main1_~y~0#1|) (<= 0 (+ |ULTIMATE.start_gcd_test_#in~a#1| 128)) (= (ite (<= |ULTIMATE.start_main1_~g~0#1| |ULTIMATE.start_main1_~y~0#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 (+ |ULTIMATE.start_main1_~x~0#1| 128)) (<= |ULTIMATE.start_gcd_test_#res#1| 127) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main1_~g~0#1| |ULTIMATE.start_gcd_test_#res#1|) (= |ULTIMATE.start_gcd_test_~a#1| |ULTIMATE.start_gcd_test_#res#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-10-17 17:37:40,826 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-10-17 17:37:40,826 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-17 17:37:40,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2022-10-17 17:37:40,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154034652] [2022-10-17 17:37:40,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-17 17:37:40,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 17:37:40,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:37:40,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 17:37:40,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-10-17 17:37:40,830 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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) [2022-10-17 17:37:41,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:37:41,106 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-10-17 17:37:41,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 17:37:41,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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 7 [2022-10-17 17:37:41,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:37:41,108 INFO L225 Difference]: With dead ends: 31 [2022-10-17 17:37:41,109 INFO L226 Difference]: Without dead ends: 26 [2022-10-17 17:37:41,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-10-17 17:37:41,113 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:37:41,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 149 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:37:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-17 17:37:41,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-17 17:37:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 17:37:41,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-10-17 17:37:41,130 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 7 [2022-10-17 17:37:41,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:37:41,131 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-10-17 17:37:41,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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) [2022-10-17 17:37:41,131 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-10-17 17:37:41,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:37:41,132 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:41,132 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-10-17 17:37:41,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:37:41,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:37:41,357 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:41,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:41,357 INFO L85 PathProgramCache]: Analyzing trace with hash 847992842, now seen corresponding path program 2 times [2022-10-17 17:37:41,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:41,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440647182] [2022-10-17 17:37:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:41,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:41,369 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:37:41,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105143385] [2022-10-17 17:37:41,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 17:37:41,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:37:41,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:37:41,375 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:37:41,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_216ecabe-b444-4016-a720-988f7e8ee52f/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 17:37:41,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-17 17:37:41,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:37:41,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-17 17:37:41,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:37:49,595 WARN L833 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (let ((.cse0 (< |c_ULTIMATE.start_gcd_test_~a#1| 0)) (.cse13 (* |c_ULTIMATE.start_gcd_test_~a#1| 255)) (.cse3 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256))) (let ((.cse23 (+ |c_ULTIMATE.start_gcd_test_~a#1| 256)) (.cse9 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse88 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse89 (mod .cse88 256))) (and (not (<= (mod (+ .cse88 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= .cse3 .cse89) (not (<= .cse89 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))))) (.cse21 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse87 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse86 (mod .cse87 256))) (and (= .cse3 .cse86) (not (<= .cse86 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (<= (mod (+ .cse87 .cse13) 256) 127))))))) (.cse11 (not .cse0)) (.cse25 (* |c_ULTIMATE.start_main1_~y~0#1| 255)) (.cse22 (< |c_ULTIMATE.start_main1_~y~0#1| 0))) (or (and (or (and .cse0 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse2 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse1 (mod .cse2 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse1) (<= (mod (+ .cse2 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse1 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse5 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse4 (mod .cse5 256))) (and (= .cse3 .cse4) (not (<= .cse4 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (<= (mod (+ .cse5 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse6 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse7 (mod .cse6 256))) (and (not (<= (mod (+ .cse6 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse7) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse7 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse8 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse8 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse8 256)) (= .cse8 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) .cse9 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse10 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse10 256)) (= .cse10 0) (<= (mod (+ .cse10 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) (and .cse11 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse12 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= (mod (+ .cse12 .cse13) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse12 256)) (= .cse12 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse15 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse14 (mod .cse15 256))) (and (= .cse3 .cse14) (not (<= .cse14 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (<= (mod (+ .cse15 .cse13) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse16 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse17 (mod .cse16 256))) (and (<= (mod (+ .cse16 .cse13) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse17) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse17 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse19 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse18 (mod .cse19 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse18) (not (<= (mod (+ .cse19 .cse13) 256) 127)) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse18 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse20 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse20 256)) (= .cse20 0) (not (<= (mod (+ .cse20 .cse13) 256) 127)) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) .cse21))) (not .cse22) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse24 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (and (= .cse23 (mod (+ .cse24 .cse25) 256)) (not (<= (mod .cse24 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse27 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse26 (mod (+ .cse27 .cse25) 256))) (and (= .cse23 .cse26) (not (= .cse27 0)) (<= (mod .cse27 256) 127) (not (<= .cse26 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse28 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (and (<= (mod (+ .cse28 .cse25) 256) 127) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~a#1| (mod .cse28 256))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse30 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse29 (mod .cse30 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (<= .cse29 127) (= |c_ULTIMATE.start_gcd_test_~a#1| .cse29) (not (<= (mod (+ .cse30 .cse25) 256) 127)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse31 (mod (+ (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) .cse25) 256))) (and (= |c_ULTIMATE.start_gcd_test_~a#1| .cse31) (<= .cse31 127) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse32 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= .cse23 .cse32) (not (<= .cse32 127))))))) (and (let ((.cse34 (mod .cse25 256))) (let ((.cse63 (<= .cse34 127))) (or (and (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse33 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse33 256)) (= .cse33 0) (not (<= (mod (+ .cse33 .cse13) 256) 127)) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse35 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= (mod (+ .cse35 .cse13) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse35 256)) (= .cse35 0) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse37 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse36 (mod .cse37 256))) (and (= .cse3 .cse36) (not (<= .cse36 127)) (not (<= (mod (+ .cse37 .cse13) 256) 127)) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse38 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse39 (mod .cse38 256))) (and (<= (mod (+ .cse38 .cse13) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse39) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse39 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse41 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse40 (mod .cse41 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse40) (not (<= (mod (+ .cse41 .cse13) 256) 127)) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse40 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse43 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse42 (mod .cse43 256))) (and (= .cse3 .cse42) (not (<= .cse42 127)) (<= (mod (+ .cse43 .cse13) 256) 127) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) .cse11) (and .cse0 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse45 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse44 (mod .cse45 256))) (and (= .cse3 .cse44) (not (<= .cse44 127)) (<= (mod (+ .cse45 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse46 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse46 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse46 256)) (= .cse46 0) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse48 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse47 (mod .cse48 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse47) (<= (mod (+ .cse48 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse47 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse49 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse50 (mod .cse49 256))) (and (not (<= (mod (+ .cse49 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse50) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse50 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse51 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse52 (mod .cse51 256))) (and (not (<= (mod (+ .cse51 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= .cse3 .cse52) (not (<= .cse52 127)) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse53 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse53 256)) (= .cse53 0) (<= (mod (+ .cse53 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse34 |v_ULTIMATE.start_gcd_test_~a#1_26|))))))) (let ((.cse54 (* .cse34 255))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse55 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse34))) (let ((.cse56 (mod .cse55 256))) (and (not (<= (mod (+ .cse54 .cse55) 256) 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (<= .cse56 127) (= |c_ULTIMATE.start_gcd_test_~a#1| .cse56))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse57 (mod (+ .cse54 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse34)) 256))) (and (<= .cse57 127) (= |c_ULTIMATE.start_gcd_test_~a#1| .cse57) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse58 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse34) 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (<= .cse58 127)) (= .cse23 .cse58)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse60 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse34))) (let ((.cse59 (mod (+ .cse54 .cse60) 256))) (and (not (<= .cse59 127)) (<= (mod .cse60 256) 127) (= .cse23 .cse59) (not (= .cse60 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse61 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse34))) (and (= .cse23 (mod (+ .cse54 .cse61) 256)) (not (<= (mod .cse61 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse62 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse34))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (<= (mod (+ .cse54 .cse62) 256) 127) (= |c_ULTIMATE.start_gcd_test_~a#1| (mod .cse62 256))))))) .cse63) (and (let ((.cse64 (+ .cse34 (- 256)))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse64) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse65 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse64))) (and (= .cse23 (mod (+ .cse65 .cse34) 256)) (not (= .cse65 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (not .cse63) (or (and .cse0 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse67 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse66 (mod .cse67 256))) (and (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse66) (<= (mod (+ .cse67 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse66 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse68 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse68 256)) (= .cse68 0) (<= (mod (+ .cse68 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse69 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod (+ .cse69 |c_ULTIMATE.start_gcd_test_~a#1|) 256) .cse3) (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (not (= .cse69 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (<= (mod .cse69 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse70 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse70 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse70 256)) (= .cse70 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse71 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse72 (mod .cse71 256))) (and (not (<= (mod (+ .cse71 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse72) (<= .cse72 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse74 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse73 (mod .cse74 256))) (and (= .cse3 .cse73) (not (<= .cse73 127)) (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse74 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127))))) .cse9 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse75 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod .cse75 256) 127)) (= (mod (+ .cse75 |c_ULTIMATE.start_gcd_test_~a#1|) 256) .cse3) (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse76 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse76 .cse13) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse76 256)) (= .cse76 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse78 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse77 (mod .cse78 256))) (and (= .cse3 .cse77) (not (<= .cse77 127)) (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse78 .cse13) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse79 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse79 256)) (= .cse79 0) (not (<= (mod (+ .cse79 .cse13) 256) 127))))) .cse21 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse80 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= (mod (+ .cse80 .cse13) 256) .cse3) (not (= .cse80 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (<= (mod .cse80 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse81 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod .cse81 256) 127)) (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= (mod (+ .cse81 .cse13) 256) .cse3) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse83 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse82 (mod .cse83 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse82) (not (<= (mod (+ .cse83 .cse13) 256) 127)) (<= .cse82 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse84 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse85 (mod .cse84 256))) (and (<= .cse34 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse84 .cse13) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse85) (<= .cse85 127)))))) .cse11)))))) .cse22)))) (not (= |c_ULTIMATE.start_gcd_test_~a#1| 0))) is different from false