./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_2.c --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_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/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_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/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_8844c40b-1750-4be6-9313-de786b13a1e0/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 7da096d64cf3390a2bb7c442378ab6f697dfdf0fd9d4078975ad6171409858bb --- 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 17:21:35,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:21:35,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:21:35,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:21:35,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:21:35,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:21:35,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:21:35,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:21:35,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:21:35,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:21:35,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:21:35,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:21:35,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:21:35,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:21:35,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:21:35,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:21:35,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:21:35,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:21:35,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:21:35,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:21:35,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:21:35,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:21:35,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:21:35,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:21:35,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:21:35,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:21:35,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:21:35,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:21:35,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:21:35,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:21:35,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:21:35,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:21:35,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:21:35,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:21:35,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:21:35,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:21:35,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:21:35,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:21:35,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:21:35,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:21:35,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:21:35,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:21:35,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:21:35,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:21:35,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:21:35,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:21:35,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:21:35,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:21:35,770 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:21:35,770 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:21:35,771 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:21:35,771 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:21:35,772 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:21:35,772 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:21:35,772 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:21:35,773 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:21:35,773 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:21:35,773 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:21:35,773 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:21:35,773 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:21:35,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:21:35,774 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:21:35,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:21:35,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:21:35,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:21:35,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:21:35,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:21:35,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:21:35,782 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:21:35,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:21:35,782 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:21:35,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:21:35,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:21:35,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:21:35,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:21:35,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:21:35,784 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:21:35,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:21:35,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:21:35,784 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:21:35,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:21:35,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:21:35,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:21:35,785 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_8844c40b-1750-4be6-9313-de786b13a1e0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7da096d64cf3390a2bb7c442378ab6f697dfdf0fd9d4078975ad6171409858bb [2022-10-17 17:21:36,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:21:36,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:21:36,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:21:36,195 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:21:36,195 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:21:36,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/bitvector/gcd_2.c [2022-10-17 17:21:36,269 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/data/f1c3a4c9c/a3fafb09a83a499ca9321f12f2d825a6/FLAG8bd92d11a [2022-10-17 17:21:36,861 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:21:36,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/sv-benchmarks/c/bitvector/gcd_2.c [2022-10-17 17:21:36,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/data/f1c3a4c9c/a3fafb09a83a499ca9321f12f2d825a6/FLAG8bd92d11a [2022-10-17 17:21:37,192 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/data/f1c3a4c9c/a3fafb09a83a499ca9321f12f2d825a6 [2022-10-17 17:21:37,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:21:37,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:21:37,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:21:37,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:21:37,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:21:37,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1767ca28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37, skipping insertion in model container [2022-10-17 17:21:37,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:21:37,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:21:37,409 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_8844c40b-1750-4be6-9313-de786b13a1e0/sv-benchmarks/c/bitvector/gcd_2.c[664,677] [2022-10-17 17:21:37,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:21:37,436 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:21:37,449 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_8844c40b-1750-4be6-9313-de786b13a1e0/sv-benchmarks/c/bitvector/gcd_2.c[664,677] [2022-10-17 17:21:37,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:21:37,471 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:21:37,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37 WrapperNode [2022-10-17 17:21:37,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:21:37,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:21:37,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:21:37,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:21:37,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,513 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2022-10-17 17:21:37,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:21:37,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:21:37,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:21:37,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:21:37,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,537 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:21:37,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:21:37,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:21:37,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:21:37,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:21:37,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:37,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:21:37,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:21:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:21:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:21:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:21:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:21:37,708 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:21:37,710 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:21:37,926 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:21:38,022 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:21:38,023 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:21:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:38 BoogieIcfgContainer [2022-10-17 17:21:38,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:21:38,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:21:38,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:21:38,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:21:38,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:21:37" (1/3) ... [2022-10-17 17:21:38,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276cacf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:21:38, skipping insertion in model container [2022-10-17 17:21:38,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (2/3) ... [2022-10-17 17:21:38,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276cacf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:21:38, skipping insertion in model container [2022-10-17 17:21:38,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:38" (3/3) ... [2022-10-17 17:21:38,053 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2.c [2022-10-17 17:21:38,089 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:21:38,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:21:38,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:21:38,231 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;@13248318, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:21:38,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:21:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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 17:21:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:21:38,257 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:38,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 17:21:38,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:38,269 INFO L85 PathProgramCache]: Analyzing trace with hash 84816067, now seen corresponding path program 1 times [2022-10-17 17:21:38,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:38,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404391196] [2022-10-17 17:21:38,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:38,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:38,778 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 17:21:38,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:38,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404391196] [2022-10-17 17:21:38,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404391196] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:38,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:38,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:21:38,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037016061] [2022-10-17 17:21:38,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:38,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:21:38,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:38,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:21:38,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:21:38,824 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 17:21:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:38,874 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-10-17 17:21:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:21:38,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-10-17 17:21:38,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:38,886 INFO L225 Difference]: With dead ends: 19 [2022-10-17 17:21:38,886 INFO L226 Difference]: Without dead ends: 7 [2022-10-17 17:21:38,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:21:38,894 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:38,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 17:21:38,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-10-17 17:21:38,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-10-17 17:21:38,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 17:21:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-10-17 17:21:38,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-10-17 17:21:38,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:38,933 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-10-17 17:21:38,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 17:21:38,934 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-10-17 17:21:38,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:21:38,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:38,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-17 17:21:38,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:21:38,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:38,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:38,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1696327067, now seen corresponding path program 1 times [2022-10-17 17:21:38,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:38,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390484925] [2022-10-17 17:21:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:38,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:38,962 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:38,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758424190] [2022-10-17 17:21:38,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:38,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:38,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:38,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:38,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:21:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:39,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 17:21:39,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:39,662 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 17:21:39,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:21:39,803 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 17:21:39,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:39,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390484925] [2022-10-17 17:21:39,805 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:21:39,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758424190] [2022-10-17 17:21:39,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758424190] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:21:39,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [745269817] [2022-10-17 17:21:39,838 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-10-17 17:21:39,840 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:21:39,844 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:21:39,850 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:21:39,851 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:21:40,604 INFO L180 IcfgInterpreter]: Interpretation finished [2022-10-17 17:21:40,921 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '90#(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) (< 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 127) (<= |ULTIMATE.start_gcd_test_#in~b#1| 127) (= |ULTIMATE.start_main_~g~0#1| |ULTIMATE.start_gcd_test_#res#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 128)) (<= 0 (+ |ULTIMATE.start_gcd_test_#in~a#1| 128)) (<= |ULTIMATE.start_gcd_test_#res#1| 127) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= (ite (<= |ULTIMATE.start_main_~g~0#1| |ULTIMATE.start_main_~y~0#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_gcd_test_~a#1| |ULTIMATE.start_gcd_test_#res#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-10-17 17:21:40,921 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-10-17 17:21:40,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-17 17:21:40,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-10-17 17:21:40,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110647086] [2022-10-17 17:21:40,923 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-17 17:21:40,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 17:21:40,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:40,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 17:21:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-10-17 17:21:40,925 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 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 17:21:41,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:41,148 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-10-17 17:21:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 17:21:41,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 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 17:21:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:41,149 INFO L225 Difference]: With dead ends: 14 [2022-10-17 17:21:41,149 INFO L226 Difference]: Without dead ends: 9 [2022-10-17 17:21:41,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-10-17 17:21:41,152 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:41,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 13 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:21:41,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-10-17 17:21:41,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-10-17 17:21:41,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:41,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-10-17 17:21:41,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2022-10-17 17:21:41,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:41,158 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-10-17 17:21:41,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 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 17:21:41,159 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-10-17 17:21:41,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:21:41,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:41,159 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2022-10-17 17:21:41,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:41,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:41,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:41,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:41,361 INFO L85 PathProgramCache]: Analyzing trace with hash 936209957, now seen corresponding path program 2 times [2022-10-17 17:21:41,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:41,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090480700] [2022-10-17 17:21:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:41,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:41,388 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:41,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374616278] [2022-10-17 17:21:41,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 17:21:41,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:41,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:41,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:41,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8844c40b-1750-4be6-9313-de786b13a1e0/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 17:21:41,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-17 17:21:41,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:21:41,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-17 17:21:41,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:52,597 WARN L233 SmtUtils]: Spent 9.07s 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 17:22:00,556 WARN L833 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~y~0#1| 127) (let ((.cse40 (* |c_ULTIMATE.start_main_~y~0#1| 255)) (.cse41 (< |c_ULTIMATE.start_main_~y~0#1| 0))) (or (and (let ((.cse4 (mod .cse40 256))) (let ((.cse0 (<= .cse4 127))) (or (and .cse0 (let ((.cse3 (* 255 .cse4))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse2 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4))) (let ((.cse1 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) (mod (+ .cse2 .cse3) 256))))) (and (= .cse1 0) (not (<= (mod .cse2 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse1 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse6 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4))) (let ((.cse5 (mod .cse6 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse5) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (<= (mod (+ .cse6 .cse3) 256) 127) (not (= .cse5 0)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse7 (mod (+ (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4) .cse3) 256))) (and (<= .cse7 127) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse7) 256)) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (not (= .cse7 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse10 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4))) (let ((.cse8 (mod .cse10 256))) (let ((.cse9 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse8))) (and (<= .cse8 127) (= (mod .cse9 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (<= (mod (+ .cse10 .cse3) 256) 127)) (not (= .cse8 0)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= .cse9 0)))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse11 (mod (+ (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4) .cse3) 256))) (let ((.cse12 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse11))) (and (<= .cse11 127) (= .cse12 0) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse12 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (not (= .cse11 0)))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse14 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4))) (let ((.cse15 (mod (+ .cse14 .cse3) 256))) (let ((.cse13 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) .cse15)))) (and (= .cse13 0) (<= (mod .cse14 256) 127) (not (<= .cse15 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse13 256)) (not (= .cse14 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse16 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4))) (let ((.cse18 (mod .cse16 256))) (let ((.cse17 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse18))) (and (<= (mod (+ .cse16 .cse3) 256) 127) (= (mod .cse17 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (= .cse18 0)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= .cse17 0)))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse19 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4) 256))) (and (not (<= .cse19 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ .cse19 (- 256))) 256)) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse21 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4) 256))) (let ((.cse20 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ .cse21 (- 256))))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse20 256)) (not (<= .cse21 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= .cse20 0))))) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse23 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4))) (let ((.cse22 (mod .cse23 256))) (and (<= .cse22 127) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse22) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (not (<= (mod (+ .cse23 .cse3) 256) 127)) (not (= .cse22 0)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse24 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4))) (and (not (<= (mod .cse24 256) 127)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) (mod (+ .cse24 .cse3) 256))) 256)) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse25 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse4))) (let ((.cse26 (mod (+ .cse25 .cse3) 256))) (and (<= (mod .cse25 256) 127) (not (<= .cse26 127)) (not (= .cse25 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) .cse26)) 256)) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_27|))) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))))) (and (let ((.cse31 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (.cse28 (+ (- 256) .cse4))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse27 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse28))) (and (not (= .cse27 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) (mod (+ .cse4 .cse27) 256))) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_27| 0)))) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse29 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse28) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse30 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse29))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_27|)) (< |v_ULTIMATE.start_gcd_test_~a#1_27| 0) (= (mod (+ (* 255 .cse29) .cse30) 256) .cse31) (not (= .cse30 0))))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (= .cse29 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse33 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse28) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse32 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse33))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse32 256)) (= .cse32 0) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_27|))))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (= .cse33 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse34 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse28) 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (= .cse34 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse34) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_27| 0))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse36 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse28))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse35 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) (mod (+ .cse4 .cse36) 256))))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_27|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse35 256)) (= .cse35 0)))) (not (= .cse36 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse39 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse28))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse38 (mod (+ .cse4 .cse39) 256))) (let ((.cse37 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) .cse38)))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_27|)) (< |v_ULTIMATE.start_gcd_test_~a#1_27| 0) (= (mod (+ .cse37 .cse38) 256) .cse31) (not (= .cse37 0)))))) (not (= .cse39 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))) (not .cse0))))) .cse41) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse42 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|))) (and (not (<= (mod .cse42 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse43 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) (mod (+ .cse40 .cse42) 256))))) (and (= (mod .cse43 256) |c_ULTIMATE.start_gcd_test_~b#1|) (= .cse43 0) (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse44 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse45 (mod .cse44 256))) (and (<= (mod (+ .cse40 .cse44) 256) 127) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (= .cse45 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse45) 256)))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse46 (mod (+ .cse40 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|)) 256))) (and (<= .cse46 127) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse46) 256)))) (not (= .cse46 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse48 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse47 (mod .cse48 256))) (and (<= .cse47 127) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (= .cse47 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse47) 256)))) (not (<= (mod (+ .cse40 .cse48) 256) 127)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse49 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|) 256))) (and (not (<= .cse49 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse50 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) .cse49)))) (and (= (mod .cse50 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|) (= .cse50 0))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse51 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|) 256))) (and (not (<= .cse51 127)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) .cse51)) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse53 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse52 (mod (+ .cse40 .cse53) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) .cse52)) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|))) (<= (mod .cse53 256) 127) (not (<= .cse52 127)) (not (= .cse53 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse54 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse55 (mod (+ .cse40 .cse54) 256))) (and (<= (mod .cse54 256) 127) (not (<= .cse55 127)) (not (= .cse54 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse56 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) .cse55)))) (and (= (mod .cse56 256) |c_ULTIMATE.start_gcd_test_~b#1|) (= .cse56 0) (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|)))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse57 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_27| (+ (- 256) (mod (+ .cse40 .cse57) 256))) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|))) (not (<= (mod .cse57 256) 127)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse58 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse59 (mod .cse58 256))) (and (<= (mod (+ .cse40 .cse58) 256) 127) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (= .cse59 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse60 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse59))) (and (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|) (= .cse60 0) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse60 256))))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse63 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse61 (mod .cse63 256))) (and (<= .cse61 127) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (= .cse61 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse62 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse61))) (and (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|) (= .cse62 0) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse62 256))))) (not (<= (mod (+ .cse40 .cse63) 256) 127)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse65 (mod (+ .cse40 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_main_~y~0#1|)) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_27| Int)) (let ((.cse64 (mod |v_ULTIMATE.start_gcd_test_~a#1_27| .cse65))) (and (<= |c_ULTIMATE.start_main_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_27|) (= .cse64 0) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse64 256))))) (<= .cse65 127) (not (= .cse65 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))) (not .cse41))))) is different from false