./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/count_up_down-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/count_up_down-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba --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 5879e48447fc7f125bd26345b332bcb57cae00365c3de30b5785162154970826 --- 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-b5237d8 [2022-11-22 00:25:14,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:25:14,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:25:14,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:25:14,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:25:14,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:25:14,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:25:14,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:25:14,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:25:14,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:25:14,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:25:14,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:25:14,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:25:14,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:25:14,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:25:14,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:25:14,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:25:14,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:25:14,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:25:14,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:25:14,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:25:14,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:25:14,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:25:14,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:25:14,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:25:14,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:25:14,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:25:14,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:25:14,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:25:14,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:25:14,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:25:14,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:25:14,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:25:14,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:25:14,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:25:14,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:25:14,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:25:14,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:25:14,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:25:14,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:25:14,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:25:14,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 00:25:15,019 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:25:15,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:25:15,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:25:15,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:25:15,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:25:15,027 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:25:15,027 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:25:15,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:25:15,027 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:25:15,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:25:15,029 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:25:15,029 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:25:15,029 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:25:15,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:25:15,030 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:25:15,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:25:15,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:25:15,030 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:25:15,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:25:15,031 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:25:15,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:25:15,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:25:15,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:25:15,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:25:15,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:25:15,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:25:15,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:25:15,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:25:15,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:25:15,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:25:15,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:25:15,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:25:15,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:25:15,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:25:15,035 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:25:15,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:25:15,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:25:15,036 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:25:15,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:25:15,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:25:15,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:25:15,037 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_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5879e48447fc7f125bd26345b332bcb57cae00365c3de30b5785162154970826 [2022-11-22 00:25:15,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:25:15,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:25:15,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:25:15,380 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:25:15,381 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:25:15,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/loops/count_up_down-1.c [2022-11-22 00:25:18,356 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:25:18,524 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:25:18,524 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/sv-benchmarks/c/loops/count_up_down-1.c [2022-11-22 00:25:18,530 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/data/8320a6a44/3719b389e1b64935b0a2952ae4508a84/FLAGb4133dec3 [2022-11-22 00:25:18,548 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/data/8320a6a44/3719b389e1b64935b0a2952ae4508a84 [2022-11-22 00:25:18,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:25:18,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:25:18,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:25:18,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:25:18,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:25:18,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9a0196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18, skipping insertion in model container [2022-11-22 00:25:18,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:25:18,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:25:18,715 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_53b213b7-6e0b-408b-8351-2e075b63bbea/sv-benchmarks/c/loops/count_up_down-1.c[327,340] [2022-11-22 00:25:18,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:25:18,735 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:25:18,758 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_53b213b7-6e0b-408b-8351-2e075b63bbea/sv-benchmarks/c/loops/count_up_down-1.c[327,340] [2022-11-22 00:25:18,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:25:18,777 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:25:18,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18 WrapperNode [2022-11-22 00:25:18,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:25:18,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:25:18,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:25:18,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:25:18,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,846 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-11-22 00:25:18,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:25:18,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:25:18,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:25:18,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:25:18,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,865 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:25:18,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:25:18,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:25:18,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:25:18,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (1/1) ... [2022-11-22 00:25:18,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:25:18,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:25:18,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:25:18,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:25:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:25:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:25:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:25:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:25:19,022 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:25:19,026 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:25:19,209 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:25:19,241 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:25:19,241 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:25:19,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:25:19 BoogieIcfgContainer [2022-11-22 00:25:19,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:25:19,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:25:19,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:25:19,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:25:19,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:25:18" (1/3) ... [2022-11-22 00:25:19,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54831ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:25:19, skipping insertion in model container [2022-11-22 00:25:19,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:25:18" (2/3) ... [2022-11-22 00:25:19,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54831ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:25:19, skipping insertion in model container [2022-11-22 00:25:19,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:25:19" (3/3) ... [2022-11-22 00:25:19,269 INFO L112 eAbstractionObserver]: Analyzing ICFG count_up_down-1.c [2022-11-22 00:25:19,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:25:19,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:25:19,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:25:19,401 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;@73d230f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:25:19,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:25:19,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-22 00:25:19,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:25:19,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:19,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:25:19,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:25:19,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:19,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1880294, now seen corresponding path program 1 times [2022-11-22 00:25:19,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:19,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152060148] [2022-11-22 00:25:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:19,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:19,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:19,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152060148] [2022-11-22 00:25:19,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152060148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:25:19,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:25:19,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:25:19,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303714062] [2022-11-22 00:25:19,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:25:19,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:25:19,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:20,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:25:20,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:25:20,039 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 00:25:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:25:20,112 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-22 00:25:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:25:20,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-22 00:25:20,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:25:20,122 INFO L225 Difference]: With dead ends: 15 [2022-11-22 00:25:20,122 INFO L226 Difference]: Without dead ends: 6 [2022-11-22 00:25:20,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:25:20,134 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:25:20,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:25:20,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-22 00:25:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-22 00:25:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-11-22 00:25:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-22 00:25:20,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2022-11-22 00:25:20,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:25:20,174 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-22 00:25:20,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 00:25:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-22 00:25:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:25:20,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:20,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:25:20,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:25:20,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:25:20,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:20,179 INFO L85 PathProgramCache]: Analyzing trace with hash 57619255, now seen corresponding path program 1 times [2022-11-22 00:25:20,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:20,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77848769] [2022-11-22 00:25:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:20,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:20,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:20,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77848769] [2022-11-22 00:25:20,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77848769] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:25:20,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183378659] [2022-11-22 00:25:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:20,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:25:20,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:25:20,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:25:20,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:25:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:20,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-22 00:25:20,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:25:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:20,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:25:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:21,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183378659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:25:21,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1350257944] [2022-11-22 00:25:21,036 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-22 00:25:21,036 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:25:21,040 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:25:21,046 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:25:21,047 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:25:21,162 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:25:21,335 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '77#(and (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod |ULTIMATE.start_main_~y~0#1| 4294967296) (mod |ULTIMATE.start_main_~n~0#1| 4294967296)) 1 0)) (= |#NULL.offset| 0) (not (< 0 (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:25:21,335 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:25:21,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:25:21,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-11-22 00:25:21,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919880432] [2022-11-22 00:25:21,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:25:21,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:25:21,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:21,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:25:21,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-22 00:25:21,339 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:25:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:25:21,467 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-22 00:25:21,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:25:21,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 00:25:21,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:25:21,468 INFO L225 Difference]: With dead ends: 13 [2022-11-22 00:25:21,468 INFO L226 Difference]: Without dead ends: 9 [2022-11-22 00:25:21,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2022-11-22 00:25:21,470 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:25:21,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:25:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-22 00:25:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-22 00:25:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:25:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 00:25:21,474 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 00:25:21,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:25:21,474 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 00:25:21,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:25:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 00:25:21,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:25:21,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:21,475 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-11-22 00:25:21,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 00:25:21,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-22 00:25:21,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:25:21,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:21,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2116862682, now seen corresponding path program 2 times [2022-11-22 00:25:21,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:21,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003986016] [2022-11-22 00:25:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:21,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:22,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:22,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003986016] [2022-11-22 00:25:22,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003986016] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:25:22,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058517586] [2022-11-22 00:25:22,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:25:22,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:25:22,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:25:22,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:25:22,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:25:22,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 00:25:22,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:25:22,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-22 00:25:22,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:25:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:22,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:25:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:22,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058517586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:25:22,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2144680852] [2022-11-22 00:25:22,962 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-22 00:25:22,962 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:25:22,962 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:25:22,963 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:25:22,963 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:25:23,058 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:25:23,266 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '178#(and (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod |ULTIMATE.start_main_~y~0#1| 4294967296) (mod |ULTIMATE.start_main_~n~0#1| 4294967296)) 1 0)) (= |#NULL.offset| 0) (not (< 0 (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:25:23,266 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:25:23,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:25:23,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-11-22 00:25:23,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143812611] [2022-11-22 00:25:23,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:25:23,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 00:25:23,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:23,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 00:25:23,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-11-22 00:25:23,269 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 18 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-11-22 00:25:26,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:25:26,749 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2022-11-22 00:25:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 00:25:26,750 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 17 states have internal predecessors, (20), 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 8 [2022-11-22 00:25:26,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:25:26,751 INFO L225 Difference]: With dead ends: 20 [2022-11-22 00:25:26,751 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 00:25:26,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=242, Invalid=628, Unknown=0, NotChecked=0, Total=870 [2022-11-22 00:25:26,753 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 31 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:25:26,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 10 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:25:26,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 00:25:26,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 00:25:26,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-22 00:25:26,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-22 00:25:26,770 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-22 00:25:26,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:25:26,772 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-22 00:25:26,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-11-22 00:25:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-22 00:25:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 00:25:26,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:26,774 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2022-11-22 00:25:26,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 00:25:26,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:25:26,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:25:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1541264262, now seen corresponding path program 3 times [2022-11-22 00:25:26,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:26,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084386258] [2022-11-22 00:25:26,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:26,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:28,173 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:28,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:28,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084386258] [2022-11-22 00:25:28,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084386258] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:25:28,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918989694] [2022-11-22 00:25:28,174 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:25:28,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:25:28,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:25:28,176 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:25:28,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:25:28,573 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:25:28,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:25:28,575 WARN L261 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-22 00:25:28,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:25:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:29,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:25:31,598 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:31,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918989694] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:25:31,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [686775665] [2022-11-22 00:25:31,601 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-22 00:25:31,601 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:25:31,601 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:25:31,602 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:25:31,602 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:25:31,656 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:25:31,921 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '369#(and (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod |ULTIMATE.start_main_~y~0#1| 4294967296) (mod |ULTIMATE.start_main_~n~0#1| 4294967296)) 1 0)) (= |#NULL.offset| 0) (not (< 0 (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:25:31,921 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:25:31,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:25:31,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 34 [2022-11-22 00:25:31,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641964749] [2022-11-22 00:25:31,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:25:31,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-22 00:25:31,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:31,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-22 00:25:31,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 00:25:31,924 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 35 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 34 states have internal predecessors, (37), 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) [2022-11-22 00:26:04,357 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:26:16,792 WARN L233 SmtUtils]: Spent 7.43s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:27:54,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:54,957 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-11-22 00:27:54,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-22 00:27:54,958 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 34 states have internal predecessors, (37), 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 14 [2022-11-22 00:27:54,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:54,958 INFO L225 Difference]: With dead ends: 32 [2022-11-22 00:27:54,959 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 00:27:54,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 144.4s TimeCoverageRelationStatistics Valid=787, Invalid=1958, Unknown=11, NotChecked=0, Total=2756 [2022-11-22 00:27:54,961 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 95 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:54,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 24 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 00:27:54,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 00:27:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-22 00:27:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2022-11-22 00:27:54,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-22 00:27:54,981 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-11-22 00:27:54,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:54,981 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-22 00:27:54,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 34 states have internal predecessors, (37), 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) [2022-11-22 00:27:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-22 00:27:54,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 00:27:54,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:54,983 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1] [2022-11-22 00:27:54,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 00:27:55,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:27:55,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:27:55,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash 359802950, now seen corresponding path program 4 times [2022-11-22 00:27:55,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:55,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686136003] [2022-11-22 00:27:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:55,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:27:59,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:59,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686136003] [2022-11-22 00:27:59,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686136003] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:27:59,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482930365] [2022-11-22 00:27:59,837 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 00:27:59,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:27:59,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:27:59,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:27:59,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b213b7-6e0b-408b-8351-2e075b63bbea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:28:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:28:03,562 WARN L261 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 100 conjunts are in the unsatisfiable core [2022-11-22 00:28:03,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:28:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:28:05,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:28:15,356 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:28:15,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482930365] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:28:15,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1278739718] [2022-11-22 00:28:15,359 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-22 00:28:15,359 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:28:15,360 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:28:15,360 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:28:15,360 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:28:15,420 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:28:15,834 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '728#(and (<= 0 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (mod |ULTIMATE.start_main_~y~0#1| 4294967296) (mod |ULTIMATE.start_main_~n~0#1| 4294967296)) 1 0)) (= |#NULL.offset| 0) (not (< 0 (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:28:15,834 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:28:15,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:28:15,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 70 [2022-11-22 00:28:15,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498618763] [2022-11-22 00:28:15,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:28:15,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-11-22 00:28:15,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:28:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-11-22 00:28:15,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1244, Invalid=4157, Unknown=1, NotChecked=0, Total=5402 [2022-11-22 00:28:15,840 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 71 states, 71 states have (on average 1.028169014084507) internal successors, (73), 70 states have internal predecessors, (73), 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) [2022-11-22 00:32:21,431 WARN L233 SmtUtils]: Spent 1.75m on a formula simplification that was a NOOP. DAG size: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:32:26,852 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (div |c_ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse5 (* .cse6 4294967296)) (.cse2 (* (div |c_ULTIMATE.start_main_~n~0#1| 4294967296) 4294967296))) (let ((.cse3 (* (div |c_ULTIMATE.start_main_~x~0#1| 4294967296) 4294967296)) (.cse4 (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1| .cse2)) (.cse1 (+ |c_ULTIMATE.start_main_~n~0#1| .cse5)) (.cse0 (mod |c_ULTIMATE.start_main_~n~0#1| 4294967296))) (and (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 14) 4294967296) .cse0) (< 0 (mod (+ 4294967282 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967278) 4294967296)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 18) 4294967296) .cse0)) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 3) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967293) 4294967296))) (or (< .cse1 (+ |c_ULTIMATE.start_main_~y~0#1| .cse2 1)) (<= (+ |c_ULTIMATE.start_main_~n~0#1| .cse3) .cse4)) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 2) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967294) 4294967296))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 8) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967288) 4294967296))) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 16) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967280) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 9) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967287) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 19) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967277) 4294967296))) (or (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967281) 4294967296)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 15) 4294967296) .cse0)) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 22) 4294967296) .cse0) (< 0 (mod (+ 4294967274 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 20) 4294967296) .cse0) (< 0 (mod (+ 4294967276 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 7) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967289) 4294967296))) (or (<= (+ |c_ULTIMATE.start_main_~n~0#1| .cse5 .cse3 4294967296) .cse4) (<= (+ |c_ULTIMATE.start_main_~y~0#1| .cse2) .cse1)) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 6) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967290) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 10) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967286) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 11) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967285) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 21) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967275) 4294967296))) (or (< 0 (mod (+ 4294967292 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 4) 4294967296) .cse0)) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 13) 4294967296) .cse0) (< 0 (mod (+ 4294967283 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 5) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967291) 4294967296))) (or (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967295) 4294967296)) (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 1) 4294967296))) (<= .cse6 0) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 12) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967284) 4294967296))) (or (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967279) 4294967296)) (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 17) 4294967296))))))) is different from false [2022-11-22 00:32:28,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 00:36:32,372 WARN L233 SmtUtils]: Spent 1.67m on a formula simplification that was a NOOP. DAG size: 201 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:36:34,434 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_main_~n~0#1| 4294967296))) (and (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 14) 4294967296) .cse0) (< 0 (mod (+ 4294967282 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967278) 4294967296)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 18) 4294967296) .cse0)) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 3) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967293) 4294967296))) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 2) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967294) 4294967296))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 8) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967288) 4294967296))) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 16) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967280) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 9) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967287) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 19) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967277) 4294967296))) (or (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967281) 4294967296)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 15) 4294967296) .cse0)) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 22) 4294967296) .cse0) (< 0 (mod (+ 4294967274 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 20) 4294967296) .cse0) (< 0 (mod (+ 4294967276 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 7) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967289) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 6) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967290) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 10) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967286) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 11) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967285) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 21) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967275) 4294967296))) (or (< 0 (mod (+ 4294967292 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 4) 4294967296) .cse0)) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 13) 4294967296) .cse0) (< 0 (mod (+ 4294967283 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| 5) 4294967296) .cse0) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967291) 4294967296))) (or (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967295) 4294967296)) (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 1) 4294967296))) (or (= (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296) .cse0) (< 0 (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296))) (or (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 12) 4294967296)) (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967284) 4294967296))) (or (< 0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4294967279) 4294967296)) (= .cse0 (mod (+ |c_ULTIMATE.start_main_~y~0#1| 17) 4294967296))))) is different from false [2022-11-22 00:39:49,679 WARN L233 SmtUtils]: Spent 1.32m on a formula simplification that was a NOOP. DAG size: 192 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:39:51,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []