./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_2_6.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_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/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_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/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_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/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 16f616cbb154d125e085ac05764879da22cdfe3693ed1f1a6c28186441fe892d --- 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 17:36:18,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:36:18,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:36:18,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:36:18,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:36:18,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:36:18,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:36:18,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:36:18,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:36:18,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:36:18,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:36:18,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:36:18,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:36:18,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:36:18,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:36:18,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:36:18,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:36:18,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:36:18,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:36:18,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:36:18,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:36:18,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:36:18,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:36:18,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:36:18,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:36:18,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:36:18,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:36:18,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:36:18,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:36:18,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:36:18,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:36:18,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:36:18,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:36:18,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:36:18,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:36:18,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:36:18,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:36:18,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:36:18,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:36:18,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:36:18,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:36:18,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:36:18,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:36:18,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:36:18,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:36:18,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:36:18,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:36:18,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:36:18,483 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:36:18,484 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:36:18,484 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:36:18,484 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:36:18,486 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:36:18,486 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:36:18,486 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:36:18,487 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:36:18,487 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:36:18,487 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:36:18,488 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:36:18,488 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:36:18,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:36:18,489 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:36:18,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:36:18,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:36:18,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:36:18,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:36:18,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:36:18,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:36:18,491 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:36:18,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:36:18,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:36:18,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:36:18,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:36:18,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:36:18,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:36:18,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:36:18,495 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:36:18,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:36:18,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:36:18,496 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:36:18,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:36:18,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:36:18,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:36:18,498 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_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16f616cbb154d125e085ac05764879da22cdfe3693ed1f1a6c28186441fe892d [2022-10-17 17:36:18,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:36:18,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:36:18,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:36:18,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:36:18,903 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:36:18,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/combinations/gcd_2+newton_2_6.i [2022-10-17 17:36:18,980 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/data/2fe3bf1de/b83af3eaa8f1483798a8455c503bd1dc/FLAGbd74b4f4e [2022-10-17 17:36:19,520 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:36:19,526 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i [2022-10-17 17:36:19,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/data/2fe3bf1de/b83af3eaa8f1483798a8455c503bd1dc/FLAGbd74b4f4e [2022-10-17 17:36:19,829 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/data/2fe3bf1de/b83af3eaa8f1483798a8455c503bd1dc [2022-10-17 17:36:19,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:36:19,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:36:19,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:36:19,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:36:19,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:36:19,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:36:19" (1/1) ... [2022-10-17 17:36:19,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e86738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:19, skipping insertion in model container [2022-10-17 17:36:19,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:36:19" (1/1) ... [2022-10-17 17:36:19,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:36:19,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:36:20,132 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_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[1226,1239] [2022-10-17 17:36:20,163 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_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[2841,2854] [2022-10-17 17:36:20,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:36:20,177 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:36:20,191 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_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[1226,1239] [2022-10-17 17:36:20,205 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_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/sv-benchmarks/c/combinations/gcd_2+newton_2_6.i[2841,2854] [2022-10-17 17:36:20,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:36:20,224 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:36:20,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20 WrapperNode [2022-10-17 17:36:20,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:36:20,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:36:20,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:36:20,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:36:20,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,272 INFO L138 Inliner]: procedures = 27, calls = 16, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 77 [2022-10-17 17:36:20,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:36:20,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:36:20,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:36:20,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:36:20,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,301 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:36:20,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:36:20,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:36:20,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:36:20,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (1/1) ... [2022-10-17 17:36:20,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:36:20,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:36:20,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:36:20,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:36:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:36:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-10-17 17:36:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-10-17 17:36:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-10-17 17:36:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-10-17 17:36:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:36:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:36:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:36:20,499 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:36:20,503 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:36:20,737 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:36:20,842 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:36:20,842 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:36:20,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:36:20 BoogieIcfgContainer [2022-10-17 17:36:20,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:36:20,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:36:20,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:36:20,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:36:20,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:36:19" (1/3) ... [2022-10-17 17:36:20,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7102f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:36:20, skipping insertion in model container [2022-10-17 17:36:20,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:20" (2/3) ... [2022-10-17 17:36:20,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7102f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:36:20, skipping insertion in model container [2022-10-17 17:36:20,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:36:20" (3/3) ... [2022-10-17 17:36:20,864 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_2_6.i [2022-10-17 17:36:20,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:36:20,886 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 17:36:20,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:36:20,957 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;@1e910e7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:36:20,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 17:36:20,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 17:36:20,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:36:20,973 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:36:20,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-17 17:36:20,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:36:20,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:36:20,980 INFO L85 PathProgramCache]: Analyzing trace with hash -499021812, now seen corresponding path program 1 times [2022-10-17 17:36:20,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:36:20,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640584311] [2022-10-17 17:36:20,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:36:20,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:36:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:36:21,594 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 17:36:21,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:36:21,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640584311] [2022-10-17 17:36:21,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640584311] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:36:21,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:36:21,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:36:21,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543279915] [2022-10-17 17:36:21,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:36:21,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:36:21,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:36:21,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:36:21,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:36:21,676 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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 17:36:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:36:21,810 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-10-17 17:36:21,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:36:21,816 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 17:36:21,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:36:21,825 INFO L225 Difference]: With dead ends: 38 [2022-10-17 17:36:21,826 INFO L226 Difference]: Without dead ends: 21 [2022-10-17 17:36:21,829 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 17:36:21,843 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:36:21,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:36:21,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-17 17:36:21,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-17 17:36:21,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 17:36:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-10-17 17:36:21,889 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6 [2022-10-17 17:36:21,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:36:21,889 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-10-17 17:36:21,890 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 17:36:21,890 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-10-17 17:36:21,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:36:21,892 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:36:21,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:36:21,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:36:21,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:36:21,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:36:21,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1643785969, now seen corresponding path program 1 times [2022-10-17 17:36:21,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:36:21,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135496202] [2022-10-17 17:36:21,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:36:21,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:36:21,914 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:36:21,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707921455] [2022-10-17 17:36:21,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:36:21,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:36:21,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:36:21,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:36:21,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:36:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:36:22,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 17:36:22,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:36:22,618 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 17:36:22,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:36:22,769 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 17:36:22,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:36:22,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135496202] [2022-10-17 17:36:22,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:36:22,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707921455] [2022-10-17 17:36:22,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707921455] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:36:22,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [751616320] [2022-10-17 17:36:22,807 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-10-17 17:36:22,807 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:36:22,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:36:22,819 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:36:22,820 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:36:23,184 INFO L180 IcfgInterpreter]: Interpretation finished [2022-10-17 17:36:23,622 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '159#(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 17:36:23,622 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-10-17 17:36:23,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-17 17:36:23,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2022-10-17 17:36:23,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339256470] [2022-10-17 17:36:23,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-17 17:36:23,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 17:36:23,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:36:23,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 17:36:23,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-10-17 17:36:23,627 INFO L87 Difference]: Start difference. First operand 21 states and 23 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 17:36:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:36:23,920 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-10-17 17:36:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 17:36:23,920 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 17:36:23,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:36:23,921 INFO L225 Difference]: With dead ends: 28 [2022-10-17 17:36:23,922 INFO L226 Difference]: Without dead ends: 23 [2022-10-17 17:36:23,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-10-17 17:36:23,925 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:36:23,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 95 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:36:23,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-17 17:36:23,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-10-17 17:36:23,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 17:36:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-10-17 17:36:23,934 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 7 [2022-10-17 17:36:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:36:23,935 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-10-17 17:36:23,935 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 17:36:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-10-17 17:36:23,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:36:23,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:36:23,936 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-10-17 17:36:23,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:36:24,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:36:24,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:36:24,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:36:24,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1300293201, now seen corresponding path program 2 times [2022-10-17 17:36:24,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:36:24,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410388335] [2022-10-17 17:36:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:36:24,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:36:24,176 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:36:24,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526938886] [2022-10-17 17:36:24,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 17:36:24,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:36:24,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:36:24,181 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:36:24,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ab4fc-e225-4e20-bef5-1e09a2e7d42c/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 17:36:24,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-17 17:36:24,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:36:24,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-17 17:36:24,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:36:33,376 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 109 DAG size of output: 103 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-17 17:36:47,918 WARN L833 $PredicateComparison]: unable to prove that (and (let ((.cse41 (< |c_ULTIMATE.start_main1_~y~0#1| 0)) (.cse40 (* |c_ULTIMATE.start_main1_~y~0#1| 255))) (or (and (let ((.cse4 (mod .cse40 256))) (let ((.cse26 (<= .cse4 127))) (or (and (let ((.cse2 (* .cse4 255))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse3 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (let ((.cse0 (mod .cse3 256))) (let ((.cse1 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse0))) (and (not (<= (mod (+ (* 255 .cse0) .cse1) 256) 127)) (not (<= (mod (+ .cse2 .cse3) 256) 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (<= .cse0 127) (= .cse1 0) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse1 256))))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse6 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4) 256))) (let ((.cse5 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse6)))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= (mod .cse5 256) |c_ULTIMATE.start_gcd_test_~b#1|) (= .cse5 0) (not (<= (mod (+ .cse5 .cse6) 256) 127)))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse9 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (let ((.cse8 (mod (+ .cse2 .cse9) 256))) (let ((.cse7 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse8)))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse7 256)) (not (<= (mod (+ .cse8 .cse7) 256) 127)) (= .cse7 0) (<= (mod .cse9 256) 127) (not (= .cse9 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse10 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4) 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse10)) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (<= .cse10 127))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse13 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (let ((.cse11 (mod .cse13 256))) (let ((.cse12 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse11))) (and (not (<= (mod (+ (* 255 .cse11) .cse12) 256) 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (<= (mod (+ .cse2 .cse13) 256) 127) (= .cse12 0) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse12 256))))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse14 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (let ((.cse15 (mod .cse14 256))) (and (not (<= (mod (+ .cse2 .cse14) 256) 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse15 0)) (<= .cse15 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse15) 256)))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse16 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) (mod (+ .cse2 .cse16) 256))) 256)) (not (<= (mod .cse16 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse17 (mod (+ .cse2 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4)) 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse17) 256)) (not (= .cse17 0)) (<= .cse17 127) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse19 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (let ((.cse18 (mod (+ .cse2 .cse19) 256))) (and (not (<= .cse18 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse18)) 256)) (<= (mod .cse19 256) 127) (not (= .cse19 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse21 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (let ((.cse20 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) (mod (+ .cse2 .cse21) 256))))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse20 256)) (= .cse20 0) (not (<= (mod .cse21 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse23 (mod (+ .cse2 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4)) 256))) (let ((.cse22 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse23))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse22 256)) (not (= .cse23 0)) (= .cse22 0) (<= .cse23 127) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse25 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (let ((.cse24 (mod .cse25 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse24 0)) (<= (mod (+ .cse2 .cse25) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse24) 256)))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) .cse26) (and (let ((.cse33 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (.cse29 (+ .cse4 (- 256)))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse27 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse29))) (and (not (= .cse27 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse28 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) (mod (+ .cse27 .cse4) 256))))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= .cse28 0) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse28 256))))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse30 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse29) 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse30) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (not (= .cse30 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse31 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse29) 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse32 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse31))) (and (= (mod (+ (* 255 .cse31) .cse32) 256) .cse33) (not (= .cse32 0)) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (not (= .cse31 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse34 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse29))) (and (not (= .cse34 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) (mod (+ .cse34 .cse4) 256))) 256)))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse36 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse29) 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse35 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse36))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse35 256)) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= .cse35 0)))) (not (= .cse36 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse37 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse29))) (and (not (= .cse37 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse39 (mod (+ .cse37 .cse4) 256))) (let ((.cse38 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse39)))) (and (= (mod (+ .cse38 .cse39) 256) .cse33) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (not (= .cse38 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (not .cse26))))) .cse41) (and (not .cse41) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse43 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse42 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) (mod (+ .cse43 .cse40) 256))))) (and (= (mod .cse42 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (<= (mod .cse43 256) 127)) (= .cse42 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse44 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse46 (mod (+ .cse44 .cse40) 256))) (let ((.cse45 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse46)))) (and (not (= .cse44 0)) (<= (mod .cse44 256) 127) (= (mod .cse45 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (<= .cse46 127)) (= .cse45 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse48 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (let ((.cse47 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse48)))) (and (= .cse47 0) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse47 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (<= (mod (+ .cse47 .cse48) 256) 127)))))) (<= |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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse49 (mod (+ (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) .cse40) 256))) (let ((.cse50 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse49))) (and (<= .cse49 127) (= .cse50 0) (not (<= (mod (+ (* 255 .cse49) .cse50) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse50 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse51 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) (mod (+ .cse51 .cse40) 256))) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (<= (mod .cse51 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse53 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse52 (mod .cse53 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse52) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= .cse52 127) (not (<= (mod (+ .cse53 .cse40) 256) 127)) (not (= .cse52 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse54 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse54)) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (<= .cse54 127))))) (<= |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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse55 (mod (+ (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) .cse40) 256))) (let ((.cse56 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse55))) (let ((.cse57 (mod .cse56 256))) (and (<= .cse55 127) (not (<= (mod (+ (* 255 .cse55) .cse56) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse57) (<= .cse57 127) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse58 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse59 (mod (+ .cse58 .cse40) 256))) (and (not (= .cse58 0)) (<= (mod .cse58 256) 127) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| (+ (- 256) .cse59)) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (<= .cse59 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse62 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse61 (mod .cse62 256))) (let ((.cse60 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse61))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= (mod .cse60 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= .cse61 127) (not (<= (mod (+ .cse62 .cse40) 256) 127)) (= .cse60 0) (not (= .cse61 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse63 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse64 (mod .cse63 256))) (and (<= (mod (+ .cse63 .cse40) 256) 127) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse64) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (= .cse64 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)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse65 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse67 (mod .cse65 256))) (let ((.cse66 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse67))) (and (<= (mod (+ .cse65 .cse40) 256) 127) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= (mod .cse66 256) |c_ULTIMATE.start_gcd_test_~b#1|) (= .cse66 0) (not (= .cse67 0))))))) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))))))) (<= |c_ULTIMATE.start_main1_~y~0#1| 127)) is different from false