./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_2_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9 --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 add45819e4621ede17512a8acbf89201f3f4db1ab1bf97afdd66c20e4064e4cd --- 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-6b4ec56 [2022-11-20 21:19:40,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:19:40,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:19:40,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:19:40,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:19:40,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:19:40,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:19:40,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:19:40,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:19:40,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:19:40,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:19:40,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:19:40,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:19:40,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:19:40,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:19:40,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:19:40,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:19:40,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:19:40,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:19:40,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:19:40,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:19:40,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:19:40,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:19:40,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:19:40,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:19:40,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:19:40,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:19:40,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:19:40,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:19:40,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:19:40,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:19:40,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:19:40,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:19:40,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:19:40,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:19:40,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:19:40,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:19:40,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:19:40,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:19:40,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:19:40,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:19:40,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 21:19:40,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:19:40,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:19:40,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:19:40,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:19:40,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:19:40,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:19:40,758 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:19:40,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:19:40,759 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:19:40,759 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:19:40,760 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:19:40,760 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:19:40,761 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:19:40,761 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:19:40,761 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:19:40,761 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:19:40,761 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:19:40,762 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:19:40,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:19:40,763 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:19:40,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:19:40,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:19:40,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:19:40,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:19:40,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:19:40,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:19:40,764 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:19:40,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:19:40,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:19:40,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:19:40,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:19:40,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:19:40,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:19:40,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:19:40,766 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:19:40,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:19:40,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:19:40,767 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:19:40,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:19:40,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:19:40,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:19:40,768 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_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> add45819e4621ede17512a8acbf89201f3f4db1ab1bf97afdd66c20e4064e4cd [2022-11-20 21:19:41,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:19:41,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:19:41,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:19:41,185 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:19:41,185 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:19:41,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/combinations/gcd_2+newton_2_4.i [2022-11-20 21:19:44,391 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:19:44,594 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:19:44,594 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i [2022-11-20 21:19:44,608 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/data/2e2d852aa/11ef9bfda72a42699477768c3f76e47f/FLAG3a8d2a64e [2022-11-20 21:19:44,626 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/data/2e2d852aa/11ef9bfda72a42699477768c3f76e47f [2022-11-20 21:19:44,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:19:44,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:19:44,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:19:44,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:19:44,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:19:44,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:44,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2c6f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44, skipping insertion in model container [2022-11-20 21:19:44,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:44,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:19:44,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:19:44,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i[1226,1239] [2022-11-20 21:19:44,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i[2841,2854] [2022-11-20 21:19:44,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:19:44,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:19:44,892 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i[1226,1239] [2022-11-20 21:19:44,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i[2841,2854] [2022-11-20 21:19:44,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:19:44,925 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:19:44,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44 WrapperNode [2022-11-20 21:19:44,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:19:44,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:19:44,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:19:44,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:19:44,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:44,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:44,977 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2022-11-20 21:19:44,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:19:44,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:19:44,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:19:44,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:19:44,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:44,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:45,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:45,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:45,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:45,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:45,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:45,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:45,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:19:45,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:19:45,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:19:45,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:19:45,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (1/1) ... [2022-11-20 21:19:45,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:19:45,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:19:45,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:19:45,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:19:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:19:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-20 21:19:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-20 21:19:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-20 21:19:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-20 21:19:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:19:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:19:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:19:45,178 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:19:45,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:19:45,451 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:19:45,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:19:45,562 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 21:19:45,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:19:45 BoogieIcfgContainer [2022-11-20 21:19:45,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:19:45,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:19:45,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:19:45,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:19:45,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:19:44" (1/3) ... [2022-11-20 21:19:45,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3740d96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:19:45, skipping insertion in model container [2022-11-20 21:19:45,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:19:44" (2/3) ... [2022-11-20 21:19:45,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3740d96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:19:45, skipping insertion in model container [2022-11-20 21:19:45,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:19:45" (3/3) ... [2022-11-20 21:19:45,579 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_2_4.i [2022-11-20 21:19:45,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:19:45,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 21:19:45,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:19:45,665 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;@57e06663, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:19:45,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 21:19:45,671 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) [2022-11-20 21:19:45,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 21:19:45,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:19:45,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 21:19:45,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:19:45,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:19:45,687 INFO L85 PathProgramCache]: Analyzing trace with hash -499021812, now seen corresponding path program 1 times [2022-11-20 21:19:45,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:19:45,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376291228] [2022-11-20 21:19:45,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:19:45,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:19:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:19:46,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:19:46,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:19:46,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376291228] [2022-11-20 21:19:46,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376291228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:19:46,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:19:46,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:19:46,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84068065] [2022-11-20 21:19:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:19:46,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:19:46,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:19:46,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:19:46,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:19:46,349 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) [2022-11-20 21:19:46,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:19:46,469 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-11-20 21:19:46,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:19:46,472 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 [2022-11-20 21:19:46,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:19:46,481 INFO L225 Difference]: With dead ends: 38 [2022-11-20 21:19:46,481 INFO L226 Difference]: Without dead ends: 21 [2022-11-20 21:19:46,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:19:46,488 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-11-20 21:19:46,490 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] [2022-11-20 21:19:46,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-20 21:19:46,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-20 21:19:46,531 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) [2022-11-20 21:19:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-20 21:19:46,534 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6 [2022-11-20 21:19:46,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:19:46,534 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-20 21:19:46,535 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) [2022-11-20 21:19:46,535 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-20 21:19:46,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 21:19:46,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:19:46,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:19:46,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:19:46,537 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:19:46,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:19:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1643785969, now seen corresponding path program 1 times [2022-11-20 21:19:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:19:46,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267582512] [2022-11-20 21:19:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:19:46,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:19:46,552 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 21:19:46,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184554938] [2022-11-20 21:19:46,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:19:46,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:19:46,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:19:46,557 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:19:46,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 21:19:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:19:46,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 21:19:46,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:19:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:19:47,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:19:47,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:19:47,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:19:47,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267582512] [2022-11-20 21:19:47,361 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 21:19:47,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184554938] [2022-11-20 21:19:47,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184554938] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:19:47,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [178857797] [2022-11-20 21:19:47,403 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-20 21:19:47,404 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:19:47,416 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:19:47,427 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:19:47,428 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:19:47,723 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:19:48,124 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '160#(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 [2022-11-20 21:19:48,124 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 21:19:48,124 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:19:48,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 21:19:48,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143045477] [2022-11-20 21:19:48,125 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 21:19:48,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 21:19:48,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:19:48,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 21:19:48,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-20 21:19:48,127 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:19:48,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:19:48,427 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-20 21:19:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 21:19:48,429 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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 [2022-11-20 21:19:48,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:19:48,430 INFO L225 Difference]: With dead ends: 28 [2022-11-20 21:19:48,430 INFO L226 Difference]: Without dead ends: 23 [2022-11-20 21:19:48,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-20 21:19:48,434 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:19:48,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 96 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:19:48,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-20 21:19:48,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-20 21:19:48,440 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) [2022-11-20 21:19:48,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-20 21:19:48,441 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 7 [2022-11-20 21:19:48,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:19:48,441 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-20 21:19:48,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:19:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-20 21:19:48,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 21:19:48,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:19:48,444 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-11-20 21:19:48,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 21:19:48,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:19:48,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:19:48,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:19:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1300293201, now seen corresponding path program 2 times [2022-11-20 21:19:48,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:19:48,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732302062] [2022-11-20 21:19:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:19:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:19:48,676 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 21:19:48,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267638996] [2022-11-20 21:19:48,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 21:19:48,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:19:48,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:19:48,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:19:48,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 21:19:48,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 21:19:48,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 21:19:48,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-20 21:19:48,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:19:56,744 WARN L837 $PredicateComparison]: unable to prove that (and (let ((.cse20 (* |c_ULTIMATE.start_gcd_test_~a#1| 255)) (.cse6 (< |c_ULTIMATE.start_gcd_test_~a#1| 0)) (.cse11 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256))) (let ((.cse17 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse73 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse74 (mod .cse73 256))) (and (not (<= (mod (+ .cse73 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= .cse11 .cse74) (not (<= .cse74 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))))) (.cse31 (not .cse6)) (.cse24 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse72 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse71 (mod .cse72 256))) (and (= .cse11 .cse71) (not (<= .cse71 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (<= (mod (+ .cse72 .cse20) 256) 127))))))) (.cse53 (< |c_ULTIMATE.start_main1_~y~0#1| 0)) (.cse3 (+ |c_ULTIMATE.start_gcd_test_~a#1| 256)) (.cse2 (* |c_ULTIMATE.start_main1_~y~0#1| 255))) (or (and (let ((.cse4 (mod .cse2 256))) (let ((.cse5 (<= .cse4 127))) (or (and (let ((.cse0 (+ .cse4 (- 256)))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse0) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse1 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse0))) (and (not (= .cse1 0)) (= (mod (+ .cse1 .cse2) 256) .cse3) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (not .cse5) (or (and .cse6 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse8 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse7 (mod .cse8 256))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse7) (<= (mod (+ .cse8 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse7 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse9 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse9 256)) (= .cse9 0) (<= (mod (+ .cse9 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse10 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod (+ .cse10 |c_ULTIMATE.start_gcd_test_~a#1|) 256) .cse11) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (not (= .cse10 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (<= (mod .cse10 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse12 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse12 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse12 256)) (= .cse12 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse13 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse14 (mod .cse13 256))) (and (not (<= (mod (+ .cse13 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse14) (<= .cse14 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse16 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse15 (mod .cse16 256))) (and (= .cse11 .cse15) (not (<= .cse15 127)) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse16 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127))))) .cse17 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse18 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod .cse18 256) 127)) (= (mod (+ .cse18 |c_ULTIMATE.start_gcd_test_~a#1|) 256) .cse11) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse19 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse19 .cse20) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse19 256)) (= .cse19 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse22 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse21 (mod .cse22 256))) (and (= .cse11 .cse21) (not (<= .cse21 127)) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse22 .cse20) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse23 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse23 256)) (= .cse23 0) (not (<= (mod (+ .cse23 .cse20) 256) 127))))) .cse24 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse25 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= (mod (+ .cse25 .cse20) 256) .cse11) (not (= .cse25 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (<= (mod .cse25 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse26 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod .cse26 256) 127)) (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= (mod (+ .cse26 .cse20) 256) .cse11) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse28 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse27 (mod .cse28 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse27) (not (<= (mod (+ .cse28 .cse20) 256) 127)) (<= .cse27 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse29 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse30 (mod .cse29 256))) (and (<= .cse4 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse29 .cse20) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse30) (<= .cse30 127)))))) .cse31))) (and (not (= .cse4 0)) (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse32 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse32 256)) (= .cse32 0) (not (<= (mod (+ .cse32 .cse20) 256) 127)) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse33 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= (mod (+ .cse33 .cse20) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse33 256)) (= .cse33 0) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse35 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse34 (mod .cse35 256))) (and (= .cse11 .cse34) (not (<= .cse34 127)) (not (<= (mod (+ .cse35 .cse20) 256) 127)) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse36 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse37 (mod .cse36 256))) (and (<= (mod (+ .cse36 .cse20) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse37) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse37 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse39 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse38 (mod .cse39 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse38) (not (<= (mod (+ .cse39 .cse20) 256) 127)) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse38 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse41 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse40 (mod .cse41 256))) (and (= .cse11 .cse40) (not (<= .cse40 127)) (<= (mod (+ .cse41 .cse20) 256) 127) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) .cse31) (and .cse6 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse43 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse42 (mod .cse43 256))) (and (= .cse11 .cse42) (not (<= .cse42 127)) (<= (mod (+ .cse43 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse44 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse44 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse44 256)) (= .cse44 0) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse46 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse45 (mod .cse46 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse45) (<= (mod (+ .cse46 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse45 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse47 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse48 (mod .cse47 256))) (and (not (<= (mod (+ .cse47 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse48) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse48 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse49 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse50 (mod .cse49 256))) (and (not (<= (mod (+ .cse49 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= .cse11 .cse50) (not (<= .cse50 127)) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse51 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse51 256)) (= .cse51 0) (<= (mod (+ .cse51 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse4 |v_ULTIMATE.start_gcd_test_~a#1_26|))))))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4) 256)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse52 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse4))) (and (= .cse3 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse52) 256)) (not (= .cse52 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) .cse5)))) .cse53) (and (or (and .cse6 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse55 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse54 (mod .cse55 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse54) (<= (mod (+ .cse55 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse54 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse57 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse56 (mod .cse57 256))) (and (= .cse11 .cse56) (not (<= .cse56 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (<= (mod (+ .cse57 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse58 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse59 (mod .cse58 256))) (and (not (<= (mod (+ .cse58 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse59) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse59 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse60 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse60 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse60 256)) (= .cse60 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) .cse17 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse61 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse61 256)) (= .cse61 0) (<= (mod (+ .cse61 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) (and .cse31 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse62 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= (mod (+ .cse62 .cse20) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse62 256)) (= .cse62 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse64 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse63 (mod .cse64 256))) (and (= .cse11 .cse63) (not (<= .cse63 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (<= (mod (+ .cse64 .cse20) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse65 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse66 (mod .cse65 256))) (and (<= (mod (+ .cse65 .cse20) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse66) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse66 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse68 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse67 (mod .cse68 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse67) (not (<= (mod (+ .cse68 .cse20) 256) 127)) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse67 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse69 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse69 256)) (= .cse69 0) (not (<= (mod (+ .cse69 .cse20) 256) 127)) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) .cse24))) (not (= |c_ULTIMATE.start_main1_~y~0#1| 0)) (not .cse53) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse70 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (and (= .cse3 (mod (+ .cse70 .cse2) 256)) (not (= .cse70 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))))))))) (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (not (= |c_ULTIMATE.start_gcd_test_~a#1| 0))) is different from false [2022-11-20 21:20:54,304 WARN L837 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (let ((.cse10 (* |c_ULTIMATE.start_main1_~y~0#1| 255))) (let ((.cse6 (mod .cse10 256))) (let ((.cse24 (<= .cse6 127)) (.cse13 (< |c_ULTIMATE.start_main1_~y~0#1| 0)) (.cse0 (< |c_ULTIMATE.start_gcd_test_~a#1| 0))) (let ((.cse16 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (.cse33 (not .cse0)) (.cse19 (not (= .cse6 0))) (.cse28 (not (= |c_ULTIMATE.start_main1_~y~0#1| 0))) (.cse32 (not .cse13)) (.cse3 (+ |c_ULTIMATE.start_gcd_test_~a#1| 256)) (.cse7 (+ .cse6 (- 256))) (.cse14 (not .cse24))) (or (and .cse0 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse4 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse2 (mod .cse4 256))) (let ((.cse1 (mod .cse2 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= .cse1 0) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse1 256)) (not (= .cse2 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse5 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse2))) (and (= .cse3 (mod (+ (* .cse4 255) .cse5) 256)) (not (= .cse5 0)) (<= .cse6 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse9 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse11 (+ (mod (+ .cse9 .cse10) 256) (- 256)))) (let ((.cse12 (mod .cse11 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse8 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse11))) (and (not (= .cse8 0)) (<= .cse6 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= .cse3 (mod (+ .cse9 .cse10 .cse8) 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (= (mod .cse12 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (= .cse9 0)) (= .cse12 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))))) .cse13 .cse14) (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse17 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse18 (+ (mod (+ .cse17 .cse10) 256) (- 256)))) (let ((.cse15 (mod .cse18 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod (+ .cse15 |c_ULTIMATE.start_gcd_test_~a#1|) 256) .cse16) (not (= .cse17 0)) (not (= .cse15 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (<= .cse6 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= .cse3 (mod (+ .cse17 .cse10 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse18)) 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse13 .cse14) (and (let ((.cse22 (* |c_ULTIMATE.start_gcd_test_~a#1| 255))) (or (and .cse13 (or (and .cse19 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse23 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse20 (+ (- 256) (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse23) 256)))) (let ((.cse21 (mod .cse20 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse20) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= .cse6 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (= (mod (+ .cse21 .cse22) 256) .cse16) (not (= .cse21 0)) (not (= .cse23 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse24) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse26 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse27 (+ (mod (+ .cse26 .cse10) 256) (- 256)))) (let ((.cse25 (mod .cse27 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= .cse16 (mod (+ .cse25 .cse22) 256)) (not (= .cse26 0)) (not (= .cse25 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse27) 256) |c_ULTIMATE.start_gcd_test_~a#1|))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse14))) (and .cse28 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse30 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse31 (+ (- 256) (mod (+ .cse30 .cse10) 256)))) (let ((.cse29 (mod .cse31 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= .cse16 (mod (+ .cse22 .cse29) 256)) (not (= .cse29 0)) (not (= .cse30 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse31) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse32))) .cse33) (and (or (and .cse28 .cse32 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse34 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse34) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse34 |c_ULTIMATE.start_gcd_test_~a#1|) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse34 0)))))) (and (or (and .cse14 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse35 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse35) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse35 |c_ULTIMATE.start_gcd_test_~a#1|) 256)) (not (= .cse35 0)))))) (and .cse19 .cse24 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse36 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6) 256))) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse36) 256)) (= (mod (mod .cse36 |c_ULTIMATE.start_gcd_test_~a#1|) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse36 0)) (<= .cse6 |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) .cse13)) .cse33) (and .cse33 (or (and .cse13 (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse38 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse39 (+ (mod (+ .cse38 .cse10) 256) (- 256)))) (let ((.cse37 (mod .cse39 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod .cse37 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (= .cse38 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse39) 256) |c_ULTIMATE.start_gcd_test_~a#1|))) (= .cse37 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse41 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7) 256))) (let ((.cse40 (mod .cse41 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= .cse40 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse41) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse40 256)) (not (= .cse41 0))))))) .cse14) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse44 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse42 (+ (- 256) (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse44) 256)))) (let ((.cse43 (mod .cse42 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse42) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= .cse6 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (= .cse43 0) (not (= .cse44 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse43 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse45 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6) 256))) (let ((.cse46 (mod .cse45 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse45) 256)) (= (mod .cse46 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse45 0)) (= .cse46 0) (<= .cse6 |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) .cse19 .cse24))) (and .cse28 .cse32 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse49 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse47 (+ (- 256) (mod (+ .cse49 .cse10) 256)))) (let ((.cse48 (mod .cse47 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse47) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (= .cse48 0) (not (= .cse49 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse48 256)) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse50 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (let ((.cse51 (mod .cse50 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse50) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse51 256)) (= .cse51 0) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse50 0)))))))))) (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse53 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse52 (mod .cse53 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse52 |c_ULTIMATE.start_gcd_test_~a#1|) 256)) (not (= .cse52 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse54 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse52))) (and (= .cse3 (mod (+ (* .cse53 255) .cse54) 256)) (not (= .cse54 0)) (<= .cse6 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))))) .cse13 .cse14)))))) (not (= |c_ULTIMATE.start_gcd_test_~a#1| 0))) is different from false [2022-11-20 21:20:59,896 WARN L837 $PredicateComparison]: unable to prove that (and (let ((.cse3 (* |c_ULTIMATE.start_main1_~y~0#1| 255))) (let ((.cse1 (mod .cse3 256))) (let ((.cse10 (< |c_ULTIMATE.start_main1_~y~0#1| 0)) (.cse19 (<= .cse1 127)) (.cse12 (< |c_ULTIMATE.start_main1_~g~0#1| 0))) (let ((.cse4 (+ 256 |c_ULTIMATE.start_main1_~g~0#1|)) (.cse26 (not .cse12)) (.cse18 (not (= .cse1 0))) (.cse6 (+ .cse1 (- 256))) (.cse11 (not .cse19)) (.cse13 (not (= |c_ULTIMATE.start_main1_~y~0#1| 0))) (.cse14 (not .cse10)) (.cse17 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse32 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (and (= (mod (mod .cse32 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse32) 256) |c_ULTIMATE.start_main1_~g~0#1|) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse32 0))))))) (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse2 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse5 (+ (mod (+ .cse2 .cse3) 256) (- 256)))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse0 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse5))) (and (not (= .cse0 0)) (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= (mod (+ .cse2 .cse3 .cse0) 256) .cse4) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (= (mod .cse5 |c_ULTIMATE.start_main1_~g~0#1|) 0) (not (= .cse2 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse7 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse9 (mod .cse7 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse8 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse9))) (and (= .cse4 (mod (+ (* .cse7 255) .cse8) 256)) (not (= .cse8 0)) (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (= (mod .cse9 |c_ULTIMATE.start_main1_~g~0#1|) 0) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse9 0))))))) .cse10 .cse11 .cse12) (and (or (and .cse13 .cse14 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse16 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse15 (+ (- 256) (mod (+ .cse16 .cse3) 256)))) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse15) 256) |c_ULTIMATE.start_main1_~g~0#1|) (not (= .cse16 0)) (= (mod (mod .cse15 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) .cse17)) (and (or (and .cse18 .cse19 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse20 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse1) 256))) (and (= (mod .cse20 |c_ULTIMATE.start_main1_~g~0#1|) 0) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse20) 256) |c_ULTIMATE.start_main1_~g~0#1|) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse20 0)) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse22 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse1))) (let ((.cse21 (+ (- 256) (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse22) 256)))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse21) 256) |c_ULTIMATE.start_main1_~g~0#1|) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (not (= .cse22 0)) (= (mod .cse21 |c_ULTIMATE.start_main1_~g~0#1|) 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))))) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse23 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6) 256))) (and (= (mod .cse23 |c_ULTIMATE.start_main1_~g~0#1|) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse23) 256) |c_ULTIMATE.start_main1_~g~0#1|))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse23 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse24 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse25 (+ (mod (+ .cse24 .cse3) 256) (- 256)))) (and (not (= .cse24 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse25) 256) |c_ULTIMATE.start_main1_~g~0#1|))) (= (mod (mod .cse25 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse11)) .cse10)) .cse26) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse27 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse29 (mod .cse27 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse28 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse29))) (and (= .cse4 (mod (+ (* .cse27 255) .cse28) 256)) (not (= .cse28 0)) (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse29 0)) (= (mod (mod .cse29 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0))))) .cse10 .cse11 .cse12) (and .cse26 (or (and .cse10 (or (and .cse18 .cse19 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse30 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse1) 256))) (and (= (mod (mod .cse30 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse30) 256) |c_ULTIMATE.start_main1_~g~0#1|) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse30 0)) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse31 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse31) 256) |c_ULTIMATE.start_main1_~g~0#1|))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse31 0)) (= (mod (mod .cse31 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0)))) .cse11))) (and .cse13 .cse14 .cse17)))))))) (not (= |c_ULTIMATE.start_main1_~g~0#1| 0)) (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (<= |c_ULTIMATE.start_main1_~g~0#1| 127)) is different from false [2022-11-20 21:21:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-20 21:21:01,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:23:35,560 WARN L233 SmtUtils]: Spent 2.14m on a formula simplification. DAG size of input: 80 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:27:15,146 WARN L859 $PredicateComparison]: unable to prove that (or (let ((.cse23 (< |c_ULTIMATE.start_gcd_test_~b#1| 0))) (let ((.cse0 (not .cse23)) (.cse4 (* |c_ULTIMATE.start_gcd_test_~b#1| 255))) (and (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse3 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse2 (mod (+ .cse3 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse1 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse2) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse1 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse2 127)) (<= (mod (+ .cse3 .cse4) 256) 127) (<= (mod .cse3 256) 127) (= 0 .cse2) (not (= (mod (mod .cse2 .cse1) 256) 0))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse7 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse8 (mod .cse7 256))) (let ((.cse5 (+ (- 256) .cse8))) (let ((.cse6 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse5) 256))) (or (not (= (mod (mod .cse5 .cse6) 256) 0)) (not (<= (mod (+ .cse7 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse7 .cse4) 256) 127) (<= .cse8 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse6 |c_ULTIMATE.start_main1_~y~0#1|))))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse9 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse12 (mod .cse9 256))) (let ((.cse10 (+ (- 256) .cse12))) (let ((.cse11 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse10) 256))) (or (not (<= (mod (+ .cse9 .cse4) 256) 127)) (not (= (mod (mod .cse10 .cse11) 256) 0)) (<= .cse12 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse11 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse9 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse13 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse16 (mod (+ .cse13 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse15 (+ (- 256) .cse16))) (let ((.cse14 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse15) 256))) (or (not (<= (mod (+ .cse13 .cse4) 256) 127)) (<= .cse14 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse15 .cse14) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod .cse13 256) 127) (<= .cse16 127)))))))))) .cse0) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse17 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse18 (mod .cse17 256))) (let ((.cse19 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse18) 256))) (or (not (<= (mod (+ .cse17 .cse4) 256) 127)) (= .cse18 0) (not (<= (mod (+ .cse17 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse19 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse18 127)) (not (= (mod (mod .cse18 .cse19) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse20 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse22 (mod (+ .cse20 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse21 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse22) 256))) (or (not (<= (mod (+ .cse20 .cse4) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse21 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse22 127)) (= 0 .cse22) (not (<= (mod .cse20 256) 127)) (not (= (mod (mod .cse22 .cse21) 256) 0))))))))))) (or .cse23 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse26 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse27 (mod (+ .cse26 .cse4) 256))) (let ((.cse24 (+ (- 256) .cse27))) (let ((.cse25 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse24) 256))) (or (not (= (mod (mod .cse24 .cse25) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse26 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse27 127) (<= .cse25 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod .cse26 256) 127)) (= .cse26 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse29 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse28 (mod .cse29 256))) (let ((.cse30 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse28) 256))) (or (= .cse28 0) (not (<= (mod (+ .cse29 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse29 .cse4) 256) 127) (<= .cse30 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse28 127)) (not (= (mod (mod .cse28 .cse30) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse31 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse32 (mod .cse31 256))) (let ((.cse33 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse32) 256))) (or (not (<= (mod (+ .cse31 .cse4) 256) 127)) (= .cse32 0) (<= .cse33 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse32 127)) (not (= (mod (mod .cse32 .cse33) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse31 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse34 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse37 (mod (+ .cse34 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse36 (+ (- 256) .cse37))) (let ((.cse35 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse36) 256))) (or (not (<= (mod (+ .cse34 .cse4) 256) 127)) (<= .cse35 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse36 .cse35) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod .cse34 256) 127)) (<= .cse37 127) (= .cse34 0)))))))))) .cse0) (or .cse23 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse40 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse41 (mod .cse40 256))) (let ((.cse38 (+ (- 256) .cse41))) (let ((.cse39 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse38) 256))) (or (not (= (mod (mod .cse38 .cse39) 256) 0)) (not (<= (mod (+ .cse40 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse40 .cse4) 256) 127) (<= .cse41 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse39 |c_ULTIMATE.start_main1_~y~0#1|))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse44 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse45 (mod (+ .cse44 .cse4) 256))) (let ((.cse42 (+ (- 256) .cse45))) (let ((.cse43 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse42) 256))) (or (not (= (mod (mod .cse42 .cse43) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse44 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse45 127) (<= (mod .cse44 256) 127) (<= .cse43 |c_ULTIMATE.start_main1_~y~0#1|))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse23 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse47 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse46 (mod (+ .cse47 .cse4) 256))) (let ((.cse48 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse46) 256))) (or (not (<= .cse46 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (= .cse46 0) (<= (mod .cse47 256) 127) (<= (mod (+ .cse47 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (<= .cse48 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse46 .cse48) 256) 0))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse49 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse52 (mod .cse49 256))) (let ((.cse50 (+ (- 256) .cse52))) (let ((.cse51 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse50) 256))) (or (not (<= (mod (+ .cse49 .cse4) 256) 127)) (not (= (mod (mod .cse50 .cse51) 256) 0)) (<= .cse52 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse51 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse49 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))))) (or .cse23 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse56 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse55 (mod (+ .cse56 .cse4) 256))) (let ((.cse53 (+ (- 256) .cse55))) (let ((.cse54 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse53) 256))) (or (not (= (mod (mod .cse53 .cse54) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse55 127) (<= (mod .cse56 256) 127) (<= .cse54 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse56 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse59 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse60 (mod .cse59 256))) (let ((.cse57 (+ (- 256) .cse60))) (let ((.cse58 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse57) 256))) (or (not (= (mod (mod .cse57 .cse58) 256) 0)) (<= (mod (+ .cse59 .cse4) 256) 127) (<= .cse60 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse58 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse59 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse61 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse64 (mod .cse61 256))) (let ((.cse62 (+ (- 256) .cse64))) (let ((.cse63 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse62) 256))) (or (not (<= (mod (+ .cse61 .cse4) 256) 127)) (not (= (mod (mod .cse62 .cse63) 256) 0)) (not (<= (mod (+ .cse61 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse64 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse63 |c_ULTIMATE.start_main1_~y~0#1|))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse66 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse65 (mod (+ .cse66 .cse4) 256))) (let ((.cse67 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse65) 256))) (or (not (<= .cse65 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse66 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (= .cse65 0) (<= (mod .cse66 256) 127) (<= .cse67 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse65 .cse67) 256) 0)))))))))) .cse23) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse70 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse71 (mod (+ .cse70 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse69 (+ (- 256) .cse71))) (let ((.cse68 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse69) 256))) (or (<= .cse68 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse69 .cse68) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod (+ .cse70 .cse4) 256) 127) (<= (mod .cse70 256) 127) (<= .cse71 127))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse74 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse75 (mod .cse74 256))) (let ((.cse72 (+ (- 256) .cse75))) (let ((.cse73 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse72) 256))) (or (not (= (mod (mod .cse72 .cse73) 256) 0)) (<= (mod (+ .cse74 .cse4) 256) 127) (<= .cse75 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse73 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse74 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse77 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse76 (mod (+ .cse77 .cse4) 256))) (let ((.cse78 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse76) 256))) (or (not (<= .cse76 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (= .cse76 0) (not (<= (mod .cse77 256) 127)) (<= (mod (+ .cse77 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (<= .cse78 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse76 .cse78) 256) 0)) (= .cse77 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse79 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse80 (mod .cse79 256))) (let ((.cse81 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse80) 256))) (or (not (<= (mod (+ .cse79 .cse4) 256) 127)) (= .cse80 0) (<= .cse81 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse80 127)) (not (= (mod (mod .cse80 .cse81) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse79 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse23) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse82 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse84 (mod (+ .cse82 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse83 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse84) 256))) (or (not (<= (mod (+ .cse82 .cse4) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse83 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse84 127)) (<= (mod .cse82 256) 127) (= 0 .cse84) (not (= (mod (mod .cse84 .cse83) 256) 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse85 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse88 (mod .cse85 256))) (let ((.cse86 (+ (- 256) .cse88))) (let ((.cse87 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse86) 256))) (or (not (<= (mod (+ .cse85 .cse4) 256) 127)) (not (= (mod (mod .cse86 .cse87) 256) 0)) (not (<= (mod (+ .cse85 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse88 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse87 |c_ULTIMATE.start_main1_~y~0#1|))))))))))) (or .cse23 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse90 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse89 (mod (+ .cse90 .cse4) 256))) (let ((.cse91 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse89) 256))) (or (not (<= .cse89 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse90 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (= .cse89 0) (not (<= (mod .cse90 256) 127)) (<= .cse91 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse89 .cse91) 256) 0))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse92 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse93 (mod .cse92 256))) (let ((.cse94 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse93) 256))) (or (not (<= (mod (+ .cse92 .cse4) 256) 127)) (= .cse93 0) (not (<= (mod (+ .cse92 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse94 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse93 127)) (not (= (mod (mod .cse93 .cse94) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse97 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse96 (mod (+ .cse97 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse95 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse96) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse95 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse96 127)) (<= (mod (+ .cse97 .cse4) 256) 127) (= 0 .cse96) (not (<= (mod .cse97 256) 127)) (not (= (mod (mod .cse96 .cse95) 256) 0)) (= .cse97 0)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse99 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse98 (mod .cse99 256))) (let ((.cse100 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse98) 256))) (or (= .cse98 0) (not (<= (mod (+ .cse99 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse99 .cse4) 256) 127) (<= .cse100 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse98 127)) (not (= (mod (mod .cse98 .cse100) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse104 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse103 (mod (+ .cse104 .cse4) 256))) (let ((.cse101 (+ (- 256) .cse103))) (let ((.cse102 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse101) 256))) (or (not (= (mod (mod .cse101 .cse102) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse103 127) (<= .cse102 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod .cse104 256) 127)) (<= (mod (+ .cse104 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (= .cse104 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse106 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse105 (mod .cse106 256))) (let ((.cse107 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse105) 256))) (or (= .cse105 0) (<= (mod (+ .cse106 .cse4) 256) 127) (<= .cse107 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse105 127)) (not (= (mod (mod .cse105 .cse107) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse106 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))) .cse23) (or .cse0 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse110 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse111 (mod (+ .cse110 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse109 (+ (- 256) .cse111))) (let ((.cse108 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse109) 256))) (or (<= .cse108 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse109 .cse108) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod (+ .cse110 .cse4) 256) 127) (not (<= (mod .cse110 256) 127)) (<= .cse111 127) (= .cse110 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse113 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse112 (mod .cse113 256))) (let ((.cse114 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse112) 256))) (or (= .cse112 0) (<= (mod (+ .cse113 .cse4) 256) 127) (<= .cse114 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse112 127)) (not (= (mod (mod .cse112 .cse114) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse113 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))))))) (= |c_ULTIMATE.start_gcd_test_~b#1| 0) (not (< 0 |c_ULTIMATE.start_main1_~y~0#1|))) is different from true [2022-11-20 21:27:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-20 21:27:15,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:15,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732302062] [2022-11-20 21:27:15,922 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 21:27:15,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267638996] [2022-11-20 21:27:15,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267638996] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:27:15,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [825944128] [2022-11-20 21:27:15,929 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-20 21:27:15,930 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:27:15,930 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:27:15,930 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:27:15,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:27:16,079 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:27:20,000 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '306#(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 [2022-11-20 21:27:20,001 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 21:27:20,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:27:20,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 21:27:20,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999421163] [2022-11-20 21:27:20,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 21:27:20,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 21:27:20,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:27:20,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 21:27:20,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=167, Unknown=5, NotChecked=116, Total=342 [2022-11-20 21:27:20,003 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:27:22,579 WARN L859 $PredicateComparison]: unable to prove that (and (let ((.cse0 (< |c_ULTIMATE.start_main1_~y~0#1| 0))) (or (and .cse0 (let ((.cse1 (mod (* |c_ULTIMATE.start_main1_~y~0#1| 255) 256))) (let ((.cse2 (<= .cse1 127))) (or (and (= .cse1 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (not .cse2)) (and (= .cse1 |c_ULTIMATE.start_gcd_test_~b#1|) .cse2))))) (and (not .cse0) (= |c_ULTIMATE.start_main1_~y~0#1| |c_ULTIMATE.start_gcd_test_~b#1|)))) (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (or (let ((.cse26 (< |c_ULTIMATE.start_gcd_test_~b#1| 0))) (let ((.cse3 (not .cse26)) (.cse7 (* |c_ULTIMATE.start_gcd_test_~b#1| 255))) (and (or .cse3 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse6 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse5 (mod (+ .cse6 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse4 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse5) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse4 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse5 127)) (<= (mod (+ .cse6 .cse7) 256) 127) (<= (mod .cse6 256) 127) (= 0 .cse5) (not (= (mod (mod .cse5 .cse4) 256) 0))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse10 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse11 (mod .cse10 256))) (let ((.cse8 (+ (- 256) .cse11))) (let ((.cse9 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse8) 256))) (or (not (= (mod (mod .cse8 .cse9) 256) 0)) (not (<= (mod (+ .cse10 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse10 .cse7) 256) 127) (<= .cse11 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse9 |c_ULTIMATE.start_main1_~y~0#1|))))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse12 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse15 (mod .cse12 256))) (let ((.cse13 (+ (- 256) .cse15))) (let ((.cse14 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse13) 256))) (or (not (<= (mod (+ .cse12 .cse7) 256) 127)) (not (= (mod (mod .cse13 .cse14) 256) 0)) (<= .cse15 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse14 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse12 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse16 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse19 (mod (+ .cse16 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse18 (+ (- 256) .cse19))) (let ((.cse17 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse18) 256))) (or (not (<= (mod (+ .cse16 .cse7) 256) 127)) (<= .cse17 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse18 .cse17) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod .cse16 256) 127) (<= .cse19 127)))))))))) .cse3) (or .cse3 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse20 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse21 (mod .cse20 256))) (let ((.cse22 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse21) 256))) (or (not (<= (mod (+ .cse20 .cse7) 256) 127)) (= .cse21 0) (not (<= (mod (+ .cse20 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse22 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse21 127)) (not (= (mod (mod .cse21 .cse22) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse23 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse25 (mod (+ .cse23 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse24 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse25) 256))) (or (not (<= (mod (+ .cse23 .cse7) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse24 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse25 127)) (= 0 .cse25) (not (<= (mod .cse23 256) 127)) (not (= (mod (mod .cse25 .cse24) 256) 0))))))))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse29 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse30 (mod (+ .cse29 .cse7) 256))) (let ((.cse27 (+ (- 256) .cse30))) (let ((.cse28 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse27) 256))) (or (not (= (mod (mod .cse27 .cse28) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse29 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse30 127) (<= .cse28 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod .cse29 256) 127)) (= .cse29 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse32 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse31 (mod .cse32 256))) (let ((.cse33 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse31) 256))) (or (= .cse31 0) (not (<= (mod (+ .cse32 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse32 .cse7) 256) 127) (<= .cse33 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse31 127)) (not (= (mod (mod .cse31 .cse33) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse34 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse35 (mod .cse34 256))) (let ((.cse36 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse35) 256))) (or (not (<= (mod (+ .cse34 .cse7) 256) 127)) (= .cse35 0) (<= .cse36 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse35 127)) (not (= (mod (mod .cse35 .cse36) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse34 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse37 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse40 (mod (+ .cse37 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse39 (+ (- 256) .cse40))) (let ((.cse38 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse39) 256))) (or (not (<= (mod (+ .cse37 .cse7) 256) 127)) (<= .cse38 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse39 .cse38) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod .cse37 256) 127)) (<= .cse40 127) (= .cse37 0)))))))))) .cse3) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse43 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse44 (mod .cse43 256))) (let ((.cse41 (+ (- 256) .cse44))) (let ((.cse42 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse41) 256))) (or (not (= (mod (mod .cse41 .cse42) 256) 0)) (not (<= (mod (+ .cse43 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse43 .cse7) 256) 127) (<= .cse44 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse42 |c_ULTIMATE.start_main1_~y~0#1|))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse47 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse48 (mod (+ .cse47 .cse7) 256))) (let ((.cse45 (+ (- 256) .cse48))) (let ((.cse46 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse45) 256))) (or (not (= (mod (mod .cse45 .cse46) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse47 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse48 127) (<= (mod .cse47 256) 127) (<= .cse46 |c_ULTIMATE.start_main1_~y~0#1|))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse50 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse49 (mod (+ .cse50 .cse7) 256))) (let ((.cse51 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse49) 256))) (or (not (<= .cse49 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (= .cse49 0) (<= (mod .cse50 256) 127) (<= (mod (+ .cse50 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (<= .cse51 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse49 .cse51) 256) 0))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse52 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse55 (mod .cse52 256))) (let ((.cse53 (+ (- 256) .cse55))) (let ((.cse54 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse53) 256))) (or (not (<= (mod (+ .cse52 .cse7) 256) 127)) (not (= (mod (mod .cse53 .cse54) 256) 0)) (<= .cse55 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse54 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse52 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse59 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse58 (mod (+ .cse59 .cse7) 256))) (let ((.cse56 (+ (- 256) .cse58))) (let ((.cse57 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse56) 256))) (or (not (= (mod (mod .cse56 .cse57) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse58 127) (<= (mod .cse59 256) 127) (<= .cse57 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse59 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse62 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse63 (mod .cse62 256))) (let ((.cse60 (+ (- 256) .cse63))) (let ((.cse61 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse60) 256))) (or (not (= (mod (mod .cse60 .cse61) 256) 0)) (<= (mod (+ .cse62 .cse7) 256) 127) (<= .cse63 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse61 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse62 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse64 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse67 (mod .cse64 256))) (let ((.cse65 (+ (- 256) .cse67))) (let ((.cse66 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse65) 256))) (or (not (<= (mod (+ .cse64 .cse7) 256) 127)) (not (= (mod (mod .cse65 .cse66) 256) 0)) (not (<= (mod (+ .cse64 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse67 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse66 |c_ULTIMATE.start_main1_~y~0#1|))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse69 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse68 (mod (+ .cse69 .cse7) 256))) (let ((.cse70 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse68) 256))) (or (not (<= .cse68 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse69 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (= .cse68 0) (<= (mod .cse69 256) 127) (<= .cse70 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse68 .cse70) 256) 0)))))))))) .cse26) (or .cse3 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse73 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse74 (mod (+ .cse73 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse72 (+ (- 256) .cse74))) (let ((.cse71 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse72) 256))) (or (<= .cse71 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse72 .cse71) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod (+ .cse73 .cse7) 256) 127) (<= (mod .cse73 256) 127) (<= .cse74 127))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse77 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse78 (mod .cse77 256))) (let ((.cse75 (+ (- 256) .cse78))) (let ((.cse76 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse75) 256))) (or (not (= (mod (mod .cse75 .cse76) 256) 0)) (<= (mod (+ .cse77 .cse7) 256) 127) (<= .cse78 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse76 |c_ULTIMATE.start_main1_~y~0#1|) (<= (mod (+ .cse77 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse80 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse79 (mod (+ .cse80 .cse7) 256))) (let ((.cse81 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse79) 256))) (or (not (<= .cse79 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (= .cse79 0) (not (<= (mod .cse80 256) 127)) (<= (mod (+ .cse80 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (<= .cse81 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse79 .cse81) 256) 0)) (= .cse80 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse82 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse83 (mod .cse82 256))) (let ((.cse84 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse83) 256))) (or (not (<= (mod (+ .cse82 .cse7) 256) 127)) (= .cse83 0) (<= .cse84 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse83 127)) (not (= (mod (mod .cse83 .cse84) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse82 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|)))) .cse26) (or .cse3 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse85 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse87 (mod (+ .cse85 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse86 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse87) 256))) (or (not (<= (mod (+ .cse85 .cse7) 256) 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse86 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse87 127)) (<= (mod .cse85 256) 127) (= 0 .cse87) (not (= (mod (mod .cse87 .cse86) 256) 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse88 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse91 (mod .cse88 256))) (let ((.cse89 (+ (- 256) .cse91))) (let ((.cse90 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse89) 256))) (or (not (<= (mod (+ .cse88 .cse7) 256) 127)) (not (= (mod (mod .cse89 .cse90) 256) 0)) (not (<= (mod (+ .cse88 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse91 127) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= .cse90 |c_ULTIMATE.start_main1_~y~0#1|))))))))))) (or .cse26 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse93 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse92 (mod (+ .cse93 .cse7) 256))) (let ((.cse94 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse92) 256))) (or (not (<= .cse92 127)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (not (<= (mod (+ .cse93 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (= .cse92 0) (not (<= (mod .cse93 256) 127)) (<= .cse94 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse92 .cse94) 256) 0))))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse95 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse96 (mod .cse95 256))) (let ((.cse97 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse96) 256))) (or (not (<= (mod (+ .cse95 .cse7) 256) 127)) (= .cse96 0) (not (<= (mod (+ .cse95 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= .cse97 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse96 127)) (not (= (mod (mod .cse96 .cse97) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))) (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|))))) (or .cse3 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse100 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse99 (mod (+ .cse100 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse98 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse99) 256))) (or (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse98 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse99 127)) (<= (mod (+ .cse100 .cse7) 256) 127) (= 0 .cse99) (not (<= (mod .cse100 256) 127)) (not (= (mod (mod .cse99 .cse98) 256) 0)) (= .cse100 0)))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse102 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse101 (mod .cse102 256))) (let ((.cse103 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse101) 256))) (or (= .cse101 0) (not (<= (mod (+ .cse102 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (<= (mod (+ .cse102 .cse7) 256) 127) (<= .cse103 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse101 127)) (not (= (mod (mod .cse101 .cse103) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0)))))))))) (or (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse107 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse106 (mod (+ .cse107 .cse7) 256))) (let ((.cse104 (+ (- 256) .cse106))) (let ((.cse105 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse104) 256))) (or (not (= (mod (mod .cse104 .cse105) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= .cse106 127) (<= .cse105 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= (mod .cse107 256) 127)) (<= (mod (+ .cse107 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127) (= .cse107 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| |c_ULTIMATE.start_gcd_test_~b#1|) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse109 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse108 (mod .cse109 256))) (let ((.cse110 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse108) 256))) (or (= .cse108 0) (<= (mod (+ .cse109 .cse7) 256) 127) (<= .cse110 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse108 127)) (not (= (mod (mod .cse108 .cse110) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse109 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))) .cse26) (or .cse3 (and (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse113 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse114 (mod (+ .cse113 |c_ULTIMATE.start_gcd_test_~b#1|) 256))) (let ((.cse112 (+ (- 256) .cse114))) (let ((.cse111 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse112) 256))) (or (<= .cse111 |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod .cse112 .cse111) 256) 0)) (not (< |ULTIMATE.start_gcd_test_~a#1| 0)) (<= (mod (+ .cse113 .cse7) 256) 127) (not (<= (mod .cse113 256) 127)) (<= .cse114 127) (= .cse113 0))))))))) (forall ((|v_ULTIMATE.start_gcd_test_~a#1_30| Int)) (or (< |v_ULTIMATE.start_gcd_test_~a#1_30| 0) (forall ((|ULTIMATE.start_gcd_test_~a#1| Int)) (let ((.cse116 (mod |ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse115 (mod .cse116 256))) (let ((.cse117 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_30| .cse115) 256))) (or (= .cse115 0) (<= (mod (+ .cse116 .cse7) 256) 127) (<= .cse117 |c_ULTIMATE.start_main1_~y~0#1|) (not (<= .cse115 127)) (not (= (mod (mod .cse115 .cse117) 256) 0)) (< |ULTIMATE.start_gcd_test_~a#1| 0) (<= (mod (+ .cse116 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127))))))))))))) (= |c_ULTIMATE.start_gcd_test_~b#1| 0) (not (< 0 |c_ULTIMATE.start_main1_~y~0#1|)))) is different from true [2022-11-20 21:27:27,119 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (not (< 0 |c_ULTIMATE.start_main1_~y~0#1|)))) (and (or (not (= |c_ULTIMATE.start_gcd_test_~b#1| 0)) (not (<= |c_ULTIMATE.start_gcd_test_~a#1| 127)) (<= |c_ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_main1_~y~0#1|) .cse0) (let ((.cse21 (* |c_ULTIMATE.start_gcd_test_~a#1| 255)) (.cse7 (< |c_ULTIMATE.start_gcd_test_~a#1| 0)) (.cse12 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256))) (let ((.cse18 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse74 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse75 (mod .cse74 256))) (and (not (<= (mod (+ .cse74 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= .cse12 .cse75) (not (<= .cse75 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))))) (.cse32 (not .cse7)) (.cse25 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse73 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse72 (mod .cse73 256))) (and (= .cse12 .cse72) (not (<= .cse72 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (not (<= (mod (+ .cse73 .cse21) 256) 127))))))) (.cse54 (< |c_ULTIMATE.start_main1_~y~0#1| 0)) (.cse4 (+ |c_ULTIMATE.start_gcd_test_~a#1| 256)) (.cse3 (* |c_ULTIMATE.start_main1_~y~0#1| 255))) (or (and (let ((.cse5 (mod .cse3 256))) (let ((.cse6 (<= .cse5 127))) (or (and (let ((.cse1 (+ .cse5 (- 256)))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse1) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse2 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse1))) (and (not (= .cse2 0)) (= (mod (+ .cse2 .cse3) 256) .cse4) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (not .cse6) (or (and .cse7 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse9 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse8 (mod .cse9 256))) (and (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse8) (<= (mod (+ .cse9 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse8 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse10 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse10 256)) (= .cse10 0) (<= (mod (+ .cse10 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse11 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod (+ .cse11 |c_ULTIMATE.start_gcd_test_~a#1|) 256) .cse12) (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (not (= .cse11 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (<= (mod .cse11 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse13 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse13 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse13 256)) (= .cse13 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse14 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse15 (mod .cse14 256))) (and (not (<= (mod (+ .cse14 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse15) (<= .cse15 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse17 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse16 (mod .cse17 256))) (and (= .cse12 .cse16) (not (<= .cse16 127)) (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse17 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127))))) .cse18 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse19 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod .cse19 256) 127)) (= (mod (+ .cse19 |c_ULTIMATE.start_gcd_test_~a#1|) 256) .cse12) (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse20 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse20 .cse21) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse20 256)) (= .cse20 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse23 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse22 (mod .cse23 256))) (and (= .cse12 .cse22) (not (<= .cse22 127)) (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse23 .cse21) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse24 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse24 256)) (= .cse24 0) (not (<= (mod (+ .cse24 .cse21) 256) 127))))) .cse25 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse26 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= (mod (+ .cse26 .cse21) 256) .cse12) (not (= .cse26 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0) (<= (mod .cse26 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse27 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod .cse27 256) 127)) (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= (mod (+ .cse27 .cse21) 256) .cse12) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse29 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse28 (mod .cse29 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse28) (not (<= (mod (+ .cse29 .cse21) 256) 127)) (<= .cse28 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse30 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse31 (mod .cse30 256))) (and (<= .cse5 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (<= (mod (+ .cse30 .cse21) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse31) (<= .cse31 127)))))) .cse32))) (and (not (= .cse5 0)) (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse33 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse33 256)) (= .cse33 0) (not (<= (mod (+ .cse33 .cse21) 256) 127)) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse34 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= (mod (+ .cse34 .cse21) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse34 256)) (= .cse34 0) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse36 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse35 (mod .cse36 256))) (and (= .cse12 .cse35) (not (<= .cse35 127)) (not (<= (mod (+ .cse36 .cse21) 256) 127)) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse37 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse38 (mod .cse37 256))) (and (<= (mod (+ .cse37 .cse21) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse38) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse38 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse40 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse39 (mod .cse40 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse39) (not (<= (mod (+ .cse40 .cse21) 256) 127)) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse39 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse42 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse41 (mod .cse42 256))) (and (= .cse12 .cse41) (not (<= .cse41 127)) (<= (mod (+ .cse42 .cse21) 256) 127) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) .cse32) (and .cse7 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse44 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse43 (mod .cse44 256))) (and (= .cse12 .cse43) (not (<= .cse43 127)) (<= (mod (+ .cse44 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse45 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse45 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse45 256)) (= .cse45 0) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse47 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse46 (mod .cse47 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse46) (<= (mod (+ .cse47 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse46 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse48 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse49 (mod .cse48 256))) (and (not (<= (mod (+ .cse48 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse49) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse49 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse50 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse51 (mod .cse50 256))) (and (not (<= (mod (+ .cse50 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= .cse12 .cse51) (not (<= .cse51 127)) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse52 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse52 256)) (= .cse52 0) (<= (mod (+ .cse52 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= .cse5 |v_ULTIMATE.start_gcd_test_~a#1_26|))))))) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse5) 256)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse53 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse5))) (and (= .cse4 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse53) 256)) (not (= .cse53 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) .cse6)))) .cse54) (and (or (and .cse7 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse56 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse55 (mod .cse56 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse55) (<= (mod (+ .cse56 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse55 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse58 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse57 (mod .cse58 256))) (and (= .cse12 .cse57) (not (<= .cse57 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (<= (mod (+ .cse58 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse59 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse60 (mod .cse59 256))) (and (not (<= (mod (+ .cse59 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse60) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse60 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse61 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (not (<= (mod (+ .cse61 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse61 256)) (= .cse61 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) .cse18 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse62 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse62 256)) (= .cse62 0) (<= (mod (+ .cse62 |c_ULTIMATE.start_gcd_test_~a#1|) 256) 127) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) (and .cse32 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse63 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (<= (mod (+ .cse63 .cse21) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse63 256)) (= .cse63 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse65 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse64 (mod .cse65 256))) (and (= .cse12 .cse64) (not (<= .cse64 127)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (<= (mod (+ .cse65 .cse21) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse66 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse67 (mod .cse66 256))) (and (<= (mod (+ .cse66 .cse21) 256) 127) (= |c_ULTIMATE.start_gcd_test_~b#1| .cse67) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse67 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse69 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (let ((.cse68 (mod .cse69 256))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| .cse68) (not (<= (mod (+ .cse69 .cse21) 256) 127)) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (<= .cse68 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse70 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse70 256)) (= .cse70 0) (not (<= (mod (+ .cse70 .cse21) 256) 127)) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|)))) .cse25))) (not (= |c_ULTIMATE.start_main1_~y~0#1| 0)) (not .cse54) (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse71 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (and (= .cse4 (mod (+ .cse71 .cse3) 256)) (not (= .cse71 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))))))))) (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (or (<= |c_ULTIMATE.start_gcd_test_~b#1| |c_ULTIMATE.start_main1_~y~0#1|) (not (= (mod (mod |c_ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|) 256) 0)) (not (<= |c_ULTIMATE.start_gcd_test_~b#1| 127)) .cse0) (not (= |c_ULTIMATE.start_gcd_test_~a#1| 0)))) is different from false [2022-11-20 21:27:29,157 WARN L837 $PredicateComparison]: unable to prove that (and (or (not (= |c_ULTIMATE.start_gcd_test_~b#1| 0)) (not (<= |c_ULTIMATE.start_gcd_test_~a#1| 127)) (<= |c_ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_main1_~y~0#1|) (not (< 0 |c_ULTIMATE.start_main1_~y~0#1|))) (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (let ((.cse10 (* |c_ULTIMATE.start_main1_~y~0#1| 255))) (let ((.cse6 (mod .cse10 256))) (let ((.cse24 (<= .cse6 127)) (.cse13 (< |c_ULTIMATE.start_main1_~y~0#1| 0)) (.cse0 (< |c_ULTIMATE.start_gcd_test_~a#1| 0))) (let ((.cse16 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (.cse33 (not .cse0)) (.cse19 (not (= .cse6 0))) (.cse28 (not (= |c_ULTIMATE.start_main1_~y~0#1| 0))) (.cse32 (not .cse13)) (.cse3 (+ |c_ULTIMATE.start_gcd_test_~a#1| 256)) (.cse7 (+ .cse6 (- 256))) (.cse14 (not .cse24))) (or (and .cse0 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse4 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse2 (mod .cse4 256))) (let ((.cse1 (mod .cse2 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= .cse1 0) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse1 256)) (not (= .cse2 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse5 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse2))) (and (= .cse3 (mod (+ (* .cse4 255) .cse5) 256)) (not (= .cse5 0)) (<= .cse6 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse9 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse11 (+ (mod (+ .cse9 .cse10) 256) (- 256)))) (let ((.cse12 (mod .cse11 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse8 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse11))) (and (not (= .cse8 0)) (<= .cse6 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= .cse3 (mod (+ .cse9 .cse10 .cse8) 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (= (mod .cse12 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (= .cse9 0)) (= .cse12 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))))) .cse13 .cse14) (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse17 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse18 (+ (mod (+ .cse17 .cse10) 256) (- 256)))) (let ((.cse15 (mod .cse18 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod (+ .cse15 |c_ULTIMATE.start_gcd_test_~a#1|) 256) .cse16) (not (= .cse17 0)) (not (= .cse15 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (<= .cse6 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= .cse3 (mod (+ .cse17 .cse10 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse18)) 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse13 .cse14) (and (let ((.cse22 (* |c_ULTIMATE.start_gcd_test_~a#1| 255))) (or (and .cse13 (or (and .cse19 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse23 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse20 (+ (- 256) (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse23) 256)))) (let ((.cse21 (mod .cse20 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse20) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= .cse6 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (= (mod (+ .cse21 .cse22) 256) .cse16) (not (= .cse21 0)) (not (= .cse23 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse24) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse26 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse27 (+ (mod (+ .cse26 .cse10) 256) (- 256)))) (let ((.cse25 (mod .cse27 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= .cse16 (mod (+ .cse25 .cse22) 256)) (not (= .cse26 0)) (not (= .cse25 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse27) 256) |c_ULTIMATE.start_gcd_test_~a#1|))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse14))) (and .cse28 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse30 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse31 (+ (- 256) (mod (+ .cse30 .cse10) 256)))) (let ((.cse29 (mod .cse31 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= .cse16 (mod (+ .cse22 .cse29) 256)) (not (= .cse29 0)) (not (= .cse30 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse31) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse32))) .cse33) (and (or (and .cse28 .cse32 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse34 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse34) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse34 |c_ULTIMATE.start_gcd_test_~a#1|) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse34 0)))))) (and (or (and .cse14 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse35 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse35) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse35 |c_ULTIMATE.start_gcd_test_~a#1|) 256)) (not (= .cse35 0)))))) (and .cse19 .cse24 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse36 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6) 256))) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse36) 256)) (= (mod (mod .cse36 |c_ULTIMATE.start_gcd_test_~a#1|) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse36 0)) (<= .cse6 |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) .cse13)) .cse33) (and .cse33 (or (and .cse13 (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse38 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse39 (+ (mod (+ .cse38 .cse10) 256) (- 256)))) (let ((.cse37 (mod .cse39 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod .cse37 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (= .cse38 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse39) 256) |c_ULTIMATE.start_gcd_test_~a#1|))) (= .cse37 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse41 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7) 256))) (let ((.cse40 (mod .cse41 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= .cse40 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse41) 256)) (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse40 256)) (not (= .cse41 0))))))) .cse14) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse44 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse42 (+ (- 256) (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse44) 256)))) (let ((.cse43 (mod .cse42 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse42) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= .cse6 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (= .cse43 0) (not (= .cse44 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse43 256)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse45 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6) 256))) (let ((.cse46 (mod .cse45 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= |c_ULTIMATE.start_gcd_test_~a#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse45) 256)) (= (mod .cse46 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse45 0)) (= .cse46 0) (<= .cse6 |v_ULTIMATE.start_gcd_test_~a#1_26|)))))) .cse19 .cse24))) (and .cse28 .cse32 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse49 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse47 (+ (- 256) (mod (+ .cse49 .cse10) 256)))) (let ((.cse48 (mod .cse47 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse47) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (= .cse48 0) (not (= .cse49 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse48 256)) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse50 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (let ((.cse51 (mod .cse50 |c_ULTIMATE.start_gcd_test_~a#1|))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse50) 256) |c_ULTIMATE.start_gcd_test_~a#1|) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod .cse51 256)) (= .cse51 0) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse50 0)))))))))) (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse53 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse7))) (let ((.cse52 (mod .cse53 256))) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse52 |c_ULTIMATE.start_gcd_test_~a#1|) 256)) (not (= .cse52 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse54 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse52))) (and (= .cse3 (mod (+ (* .cse53 255) .cse54) 256)) (not (= .cse54 0)) (<= .cse6 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))))))) .cse13 .cse14)))))) (not (= |c_ULTIMATE.start_gcd_test_~a#1| 0))) is different from false [2022-11-20 21:27:31,186 WARN L837 $PredicateComparison]: unable to prove that (and (or (<= |c_ULTIMATE.start_main1_~g~0#1| |c_ULTIMATE.start_main1_~y~0#1|) (not (< 0 |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse3 (* |c_ULTIMATE.start_main1_~y~0#1| 255))) (let ((.cse1 (mod .cse3 256))) (let ((.cse10 (< |c_ULTIMATE.start_main1_~y~0#1| 0)) (.cse19 (<= .cse1 127)) (.cse12 (< |c_ULTIMATE.start_main1_~g~0#1| 0))) (let ((.cse4 (+ 256 |c_ULTIMATE.start_main1_~g~0#1|)) (.cse26 (not .cse12)) (.cse18 (not (= .cse1 0))) (.cse6 (+ .cse1 (- 256))) (.cse11 (not .cse19)) (.cse13 (not (= |c_ULTIMATE.start_main1_~y~0#1| 0))) (.cse14 (not .cse10)) (.cse17 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse32 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|) 256))) (and (= (mod (mod .cse32 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse32) 256) |c_ULTIMATE.start_main1_~g~0#1|) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse32 0))))))) (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse2 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse5 (+ (mod (+ .cse2 .cse3) 256) (- 256)))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse0 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse5))) (and (not (= .cse0 0)) (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (= (mod (+ .cse2 .cse3 .cse0) 256) .cse4) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (= (mod .cse5 |c_ULTIMATE.start_main1_~g~0#1|) 0) (not (= .cse2 0)) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse7 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse9 (mod .cse7 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse8 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse9))) (and (= .cse4 (mod (+ (* .cse7 255) .cse8) 256)) (not (= .cse8 0)) (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (= (mod .cse9 |c_ULTIMATE.start_main1_~g~0#1|) 0) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse9 0))))))) .cse10 .cse11 .cse12) (and (or (and .cse13 .cse14 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse16 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse15 (+ (- 256) (mod (+ .cse16 .cse3) 256)))) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse15) 256) |c_ULTIMATE.start_main1_~g~0#1|) (not (= .cse16 0)) (= (mod (mod .cse15 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_26|) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))) .cse17)) (and (or (and .cse18 .cse19 (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse20 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse1) 256))) (and (= (mod .cse20 |c_ULTIMATE.start_main1_~g~0#1|) 0) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse20) 256) |c_ULTIMATE.start_main1_~g~0#1|) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse20 0)) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_26|)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse22 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse1))) (let ((.cse21 (+ (- 256) (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse22) 256)))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse21) 256) |c_ULTIMATE.start_main1_~g~0#1|) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_26|))) (not (= .cse22 0)) (= (mod .cse21 |c_ULTIMATE.start_main1_~g~0#1|) 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0))))))) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse23 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6) 256))) (and (= (mod .cse23 |c_ULTIMATE.start_main1_~g~0#1|) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse23) 256) |c_ULTIMATE.start_main1_~g~0#1|))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse23 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse24 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse25 (+ (mod (+ .cse24 .cse3) 256) (- 256)))) (and (not (= .cse24 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse25) 256) |c_ULTIMATE.start_main1_~g~0#1|))) (= (mod (mod .cse25 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0) (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)))))) .cse11)) .cse10)) .cse26) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse27 (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6))) (let ((.cse29 (mod .cse27 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (let ((.cse28 (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse29))) (and (= .cse4 (mod (+ (* .cse27 255) .cse28) 256)) (not (= .cse28 0)) (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_26|)) (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse29 0)) (= (mod (mod .cse29 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0))))) .cse10 .cse11 .cse12) (and .cse26 (or (and .cse10 (or (and .cse18 .cse19 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int) (|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse30 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse1) 256))) (and (= (mod (mod .cse30 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse30) 256) |c_ULTIMATE.start_main1_~g~0#1|) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse30 0)) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_26|))))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_25| Int)) (let ((.cse31 (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_25| .cse6) 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_26| Int)) (and (not (< |v_ULTIMATE.start_gcd_test_~a#1_26| 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_26| .cse31) 256) |c_ULTIMATE.start_main1_~g~0#1|))) (not (< |v_ULTIMATE.start_gcd_test_~a#1_25| 0)) (not (= .cse31 0)) (= (mod (mod .cse31 |c_ULTIMATE.start_main1_~g~0#1|) 256) 0)))) .cse11))) (and .cse13 .cse14 .cse17)))))))) (not (= |c_ULTIMATE.start_main1_~g~0#1| 0)) (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (<= |c_ULTIMATE.start_main1_~g~0#1| 127)) is different from false [2022-11-20 21:27:31,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:31,292 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-20 21:27:31,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 21:27:31,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 21:27:31,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:31,293 INFO L225 Difference]: With dead ends: 28 [2022-11-20 21:27:31,293 INFO L226 Difference]: Without dead ends: 24 [2022-11-20 21:27:31,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 155.9s TimeCoverageRelationStatistics Valid=68, Invalid=195, Unknown=9, NotChecked=280, Total=552 [2022-11-20 21:27:31,294 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:31,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 40 Unchecked, 1.5s Time] [2022-11-20 21:27:31,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-20 21:27:31,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-20 21:27:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-20 21:27:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-20 21:27:31,323 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 9 [2022-11-20 21:27:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:31,323 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-20 21:27:31,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:27:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-20 21:27:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 21:27:31,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:31,324 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-11-20 21:27:31,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 21:27:31,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:27:31,529 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:27:31,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1587976524, now seen corresponding path program 3 times [2022-11-20 21:27:31,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:31,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754449235] [2022-11-20 21:27:31,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:31,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:31,538 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 21:27:31,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974187204] [2022-11-20 21:27:31,539 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 21:27:31,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:27:31,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:27:31,540 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:27:31,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 21:27:31,639 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 21:27:31,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 21:27:31,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-20 21:27:31,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:28:15,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 139 [2022-11-20 21:28:15,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:28:15,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754449235] [2022-11-20 21:28:15,379 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 21:28:15,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974187204] [2022-11-20 21:28:15,379 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. [2022-11-20 21:28:15,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1571273175] [2022-11-20 21:28:15,386 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-20 21:28:15,387 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:28:15,387 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:28:15,387 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:28:15,387 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:28:15,390 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:273) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:221) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 44 more [2022-11-20 21:28:15,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:15,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2022-11-20 21:28:15,398 ERROR L170 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2022-11-20 21:28:15,398 INFO L359 BasicCegarLoop]: Counterexample might be feasible [2022-11-20 21:28:15,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 21:28:15,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-20 21:28:15,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 21:28:15,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:28:15,620 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-20 21:28:15,622 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:28:15,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:28:15 BoogieIcfgContainer [2022-11-20 21:28:15,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:28:15,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:28:15,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:28:15,638 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:28:15,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:19:45" (3/4) ... [2022-11-20 21:28:15,644 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 21:28:15,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:28:15,646 INFO L158 Benchmark]: Toolchain (without parser) took 511013.67ms. Allocated memory was 186.6MB in the beginning and 325.1MB in the end (delta: 138.4MB). Free memory was 143.0MB in the beginning and 185.3MB in the end (delta: -42.4MB). Peak memory consumption was 96.8MB. Max. memory is 16.1GB. [2022-11-20 21:28:15,647 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 100.0MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:28:15,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.92ms. Allocated memory is still 186.6MB. Free memory was 143.0MB in the beginning and 131.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 21:28:15,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.50ms. Allocated memory is still 186.6MB. Free memory was 131.8MB in the beginning and 129.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:28:15,654 INFO L158 Benchmark]: Boogie Preprocessor took 46.11ms. Allocated memory is still 186.6MB. Free memory was 129.7MB in the beginning and 128.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:28:15,655 INFO L158 Benchmark]: RCFGBuilder took 542.59ms. Allocated memory is still 186.6MB. Free memory was 128.3MB in the beginning and 112.9MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 21:28:15,655 INFO L158 Benchmark]: TraceAbstraction took 510065.75ms. Allocated memory was 186.6MB in the beginning and 325.1MB in the end (delta: 138.4MB). Free memory was 112.2MB in the beginning and 186.4MB in the end (delta: -74.2MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-11-20 21:28:15,656 INFO L158 Benchmark]: Witness Printer took 6.82ms. Allocated memory is still 325.1MB. Free memory was 186.4MB in the beginning and 185.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:28:15,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 100.0MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.92ms. Allocated memory is still 186.6MB. Free memory was 143.0MB in the beginning and 131.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.50ms. Allocated memory is still 186.6MB. Free memory was 131.8MB in the beginning and 129.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.11ms. Allocated memory is still 186.6MB. Free memory was 129.7MB in the beginning and 128.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.59ms. Allocated memory is still 186.6MB. Free memory was 128.3MB in the beginning and 112.9MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 510065.75ms. Allocated memory was 186.6MB in the beginning and 325.1MB in the end (delta: 138.4MB). Free memory was 112.2MB in the beginning and 186.4MB in the end (delta: -74.2MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * Witness Printer took 6.82ms. Allocated memory is still 325.1MB. Free memory was 186.4MB in the beginning and 185.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L108] COND TRUE __VERIFIER_nondet_int() [L109] CALL main1() [L49] signed char x = __VERIFIER_nondet_char(); [L50] signed char y = __VERIFIER_nondet_char(); [L51] signed char g; [L53] CALL, EXPR gcd_test(x, y) [L33] signed char t; [L35] COND TRUE a < (signed char)0 [L35] a = -a [L36] COND FALSE !(b < (signed char)0) [L38] COND TRUE b != (signed char)0 [L39] t = b [L40] b = a % b [L41] a = t [L38] COND TRUE b != (signed char)0 [L39] t = b [L40] b = a % b [L41] a = t [L38] COND TRUE b != (signed char)0 [L39] t = b [L40] b = a % b [L41] a = t [L38] COND TRUE b != (signed char)0 [L39] t = b [L40] b = a % b [L41] a = t [L38] COND FALSE !(b != (signed char)0) [L43] return a; [L53] RET, EXPR gcd_test(x, y) [L53] g = gcd_test(x, y) [L55] COND TRUE y > (signed char)0 [L56] CALL __VERIFIER_assert(y >= g) [L26] COND TRUE !(cond) [L27] reach_error() - UnprovableResult [Line: 102]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 510.0s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 40 IncrementalHoareTripleChecker+Unchecked, 210 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 46 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 156.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 492.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 5 QuantifiedInterpolants, 7429 SizeOfPredicates, 18 NumberOfNonLiveVariables, 266 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9 --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 add45819e4621ede17512a8acbf89201f3f4db1ab1bf97afdd66c20e4064e4cd --- 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-6b4ec56 [2022-11-20 21:28:17,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:28:17,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:28:17,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:28:17,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:28:17,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:28:17,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:28:17,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:28:17,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:28:17,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:28:17,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:28:17,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:28:17,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:28:17,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:28:17,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:28:17,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:28:17,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:28:17,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:28:17,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:28:17,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:28:17,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:28:17,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:28:17,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:28:17,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:28:17,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:28:17,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:28:17,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:28:17,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:28:17,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:28:17,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:28:17,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:28:17,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:28:17,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:28:17,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:28:17,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:28:17,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:28:17,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:28:17,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:28:17,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:28:17,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:28:17,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:28:17,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-20 21:28:17,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:28:17,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:28:17,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:28:17,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:28:17,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:28:17,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:28:17,939 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:28:17,939 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:28:17,939 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:28:17,940 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:28:17,940 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:28:17,940 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:28:17,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:28:17,941 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:28:17,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:28:17,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:28:17,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:28:17,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:28:17,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:28:17,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 21:28:17,943 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 21:28:17,943 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 21:28:17,943 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:28:17,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:28:17,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:28:17,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:28:17,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:28:17,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 21:28:17,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:28:17,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:28:17,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:28:17,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:28:17,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:28:17,946 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 21:28:17,949 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 21:28:17,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:28:17,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:28:17,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 21:28:17,950 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> add45819e4621ede17512a8acbf89201f3f4db1ab1bf97afdd66c20e4064e4cd [2022-11-20 21:28:18,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:28:18,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:28:18,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:28:18,356 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:28:18,358 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:28:18,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/combinations/gcd_2+newton_2_4.i [2022-11-20 21:28:21,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:28:21,795 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:28:21,795 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i [2022-11-20 21:28:21,803 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/data/6f2027c35/5efc4579e7114e1eb2089e9d6d122e43/FLAGdc5d018e2 [2022-11-20 21:28:21,819 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/data/6f2027c35/5efc4579e7114e1eb2089e9d6d122e43 [2022-11-20 21:28:21,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:28:21,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:28:21,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:28:21,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:28:21,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:28:21,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:21" (1/1) ... [2022-11-20 21:28:21,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20181c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:21, skipping insertion in model container [2022-11-20 21:28:21,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:21" (1/1) ... [2022-11-20 21:28:21,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:28:21,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:28:22,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i[1226,1239] [2022-11-20 21:28:22,121 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i[2841,2854] [2022-11-20 21:28:22,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:28:22,149 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:28:22,174 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i[1226,1239] [2022-11-20 21:28:22,196 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/sv-benchmarks/c/combinations/gcd_2+newton_2_4.i[2841,2854] [2022-11-20 21:28:22,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:28:22,223 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:28:22,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22 WrapperNode [2022-11-20 21:28:22,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:28:22,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:28:22,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:28:22,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:28:22,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,300 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 80 [2022-11-20 21:28:22,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:28:22,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:28:22,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:28:22,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:28:22,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,358 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:28:22,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:28:22,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:28:22,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:28:22,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (1/1) ... [2022-11-20 21:28:22,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:28:22,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:28:22,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:28:22,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:28:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:28:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 21:28:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-20 21:28:22,463 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-20 21:28:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-20 21:28:22,464 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-20 21:28:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:28:22,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:28:22,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:28:22,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:28:31,219 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:28:31,226 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:28:31,226 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 21:28:31,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:31 BoogieIcfgContainer [2022-11-20 21:28:31,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:28:31,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:28:31,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:28:31,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:28:31,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:21" (1/3) ... [2022-11-20 21:28:31,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74af4cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:31, skipping insertion in model container [2022-11-20 21:28:31,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22" (2/3) ... [2022-11-20 21:28:31,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74af4cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:31, skipping insertion in model container [2022-11-20 21:28:31,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:31" (3/3) ... [2022-11-20 21:28:31,239 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_2_4.i [2022-11-20 21:28:31,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:28:31,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 21:28:31,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:28:31,317 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;@65496541, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:28:31,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 21:28:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 30 states have internal predecessors, (39), 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) [2022-11-20 21:28:31,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 21:28:31,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:31,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:28:31,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:28:31,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times [2022-11-20 21:28:31,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:28:31,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033214168] [2022-11-20 21:28:31,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:31,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:31,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:28:31,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 21:28:31,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 21:28:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:31,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 21:28:31,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:28:31,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:28:31,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:28:31,666 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:28:31,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033214168] [2022-11-20 21:28:31,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033214168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:31,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:31,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:28:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844606136] [2022-11-20 21:28:31,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:31,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:28:31,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:28:31,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:28:31,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:28:31,729 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 30 states have internal predecessors, (39), 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 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-20 21:28:31,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:31,768 INFO L93 Difference]: Finished difference Result 68 states and 84 transitions. [2022-11-20 21:28:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:28:31,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 11 [2022-11-20 21:28:31,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:31,777 INFO L225 Difference]: With dead ends: 68 [2022-11-20 21:28:31,778 INFO L226 Difference]: Without dead ends: 30 [2022-11-20 21:28:31,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:28:31,787 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:28:31,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-11-20 21:28:31,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-20 21:28:31,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-20 21:28:31,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 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) [2022-11-20 21:28:31,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-20 21:28:31,842 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 11 [2022-11-20 21:28:31,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:31,843 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-20 21:28:31,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-20 21:28:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-20 21:28:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 21:28:31,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:31,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:28:31,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 21:28:32,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:32,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:28:32,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:32,063 INFO L85 PathProgramCache]: Analyzing trace with hash 65622039, now seen corresponding path program 1 times [2022-11-20 21:28:32,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:28:32,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433244195] [2022-11-20 21:28:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:32,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:32,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:28:32,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 21:28:32,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 21:28:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:32,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 21:28:32,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:28:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:28:32,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:28:32,300 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:28:32,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433244195] [2022-11-20 21:28:32,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433244195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:32,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:32,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:28:32,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657209390] [2022-11-20 21:28:32,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:32,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:28:32,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:28:32,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:28:32,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:32,304 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-11-20 21:28:32,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:32,527 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-20 21:28:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:28:32,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 11 [2022-11-20 21:28:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:32,529 INFO L225 Difference]: With dead ends: 37 [2022-11-20 21:28:32,529 INFO L226 Difference]: Without dead ends: 31 [2022-11-20 21:28:32,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:28:32,531 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:28:32,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 84 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:28:32,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-20 21:28:32,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-20 21:28:32,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 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) [2022-11-20 21:28:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-20 21:28:32,539 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 11 [2022-11-20 21:28:32,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:32,539 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-20 21:28:32,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-11-20 21:28:32,540 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-20 21:28:32,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 21:28:32,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:32,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:28:32,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 21:28:32,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:32,742 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:28:32,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:32,743 INFO L85 PathProgramCache]: Analyzing trace with hash 149955676, now seen corresponding path program 1 times [2022-11-20 21:28:32,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:28:32,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926557336] [2022-11-20 21:28:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:32,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:32,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:28:32,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 21:28:32,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 21:28:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:32,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 21:28:32,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:28:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 21:28:32,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:28:32,981 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:28:32,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926557336] [2022-11-20 21:28:32,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926557336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:32,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:32,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:28:32,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164167078] [2022-11-20 21:28:32,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:32,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:28:32,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:28:32,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:28:32,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:32,985 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:28:33,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:33,123 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-11-20 21:28:33,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:28:33,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-11-20 21:28:33,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:33,126 INFO L225 Difference]: With dead ends: 38 [2022-11-20 21:28:33,126 INFO L226 Difference]: Without dead ends: 30 [2022-11-20 21:28:33,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:33,128 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:28:33,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 84 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:28:33,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-20 21:28:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-20 21:28:33,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 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) [2022-11-20 21:28:33,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-11-20 21:28:33,136 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2022-11-20 21:28:33,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:33,136 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-20 21:28:33,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:28:33,137 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-11-20 21:28:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 21:28:33,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:33,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:28:33,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 21:28:33,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:33,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:28:33,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:33,354 INFO L85 PathProgramCache]: Analyzing trace with hash -659390950, now seen corresponding path program 1 times [2022-11-20 21:28:33,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:28:33,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984508934] [2022-11-20 21:28:33,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:33,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:33,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:28:33,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 21:28:33,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 21:28:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:33,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 21:28:33,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:28:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:28:34,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:28:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:28:34,952 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:28:34,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984508934] [2022-11-20 21:28:34,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984508934] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:28:34,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [76751089] [2022-11-20 21:28:34,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:34,953 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 21:28:34,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 21:28:34,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 21:28:34,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2022-11-20 21:28:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:35,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 21:28:35,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:28:35,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:28:35,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:28:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:28:35,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [76751089] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:28:35,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162146771] [2022-11-20 21:28:35,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:35,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:28:35,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:28:35,642 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:28:35,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 21:28:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:35,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 21:28:35,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:28:35,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:28:35,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:28:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:28:36,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162146771] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:28:36,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-20 21:28:36,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 7] total 18 [2022-11-20 21:28:36,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939556466] [2022-11-20 21:28:36,894 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-20 21:28:36,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 21:28:36,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:28:36,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 21:28:36,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-20 21:28:36,906 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:28:41,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:41,630 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2022-11-20 21:28:41,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 21:28:41,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 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 12 [2022-11-20 21:28:41,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:41,632 INFO L225 Difference]: With dead ends: 43 [2022-11-20 21:28:41,632 INFO L226 Difference]: Without dead ends: 20 [2022-11-20 21:28:41,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2022-11-20 21:28:41,635 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 65 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 21:28:41,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 159 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 21:28:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-20 21:28:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-20 21:28:41,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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) [2022-11-20 21:28:41,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-20 21:28:41,641 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2022-11-20 21:28:41,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:41,642 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-20 21:28:41,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:28:41,642 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-20 21:28:41,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 21:28:41,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:41,644 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:28:41,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2022-11-20 21:28:41,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 21:28:42,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 21:28:42,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:42,248 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:28:42,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:42,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1535073882, now seen corresponding path program 1 times [2022-11-20 21:28:42,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:28:42,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136017411] [2022-11-20 21:28:42,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:42,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:28:42,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:28:42,251 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 21:28:42,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e629df25-ee2c-4755-9b18-8a9be27e866f/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process