./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/interleave_bits.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7 --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 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:08:22,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:08:22,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:08:22,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:08:22,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:08:22,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:08:22,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:08:22,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:08:22,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:08:22,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:08:22,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:08:22,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:08:22,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:08:22,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:08:22,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:08:22,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:08:22,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:08:22,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:08:22,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:08:22,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:08:22,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:08:22,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:08:22,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:08:22,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:08:22,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:08:22,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:08:22,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:08:22,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:08:22,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:08:22,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:08:22,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:08:22,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:08:22,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:08:22,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:08:22,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:08:22,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:08:22,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:08:22,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:08:22,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:08:22,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:08:22,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:08:22,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:08:22,951 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:08:22,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:08:22,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:08:22,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:08:22,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:08:22,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:08:22,953 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:08:22,953 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:08:22,953 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:08:22,954 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:08:22,954 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:08:22,954 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:08:22,954 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:08:22,955 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:08:22,955 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:08:22,955 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:08:22,955 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:08:22,956 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:08:22,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:08:22,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:08:22,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:08:22,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:08:22,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:08:22,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:08:22,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:08:22,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:08:22,958 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:08:22,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:08:22,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:08:22,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:08:22,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:08:22,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:08:22,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:08:22,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:08:22,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:08:22,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:08:22,960 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:08:22,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:08:22,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:08:22,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:08:22,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:08:22,961 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb [2021-11-25 19:08:23,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:08:23,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:08:23,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:08:23,223 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:08:23,224 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:08:23,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/bitvector/interleave_bits.i [2021-11-25 19:08:23,303 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data/68df14045/15587eaf75ef4a8483b8fd456287174e/FLAG86710c338 [2021-11-25 19:08:23,793 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:08:23,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/sv-benchmarks/c/bitvector/interleave_bits.i [2021-11-25 19:08:23,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data/68df14045/15587eaf75ef4a8483b8fd456287174e/FLAG86710c338 [2021-11-25 19:08:24,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data/68df14045/15587eaf75ef4a8483b8fd456287174e [2021-11-25 19:08:24,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:08:24,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:08:24,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:08:24,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:08:24,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:08:24,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e111657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24, skipping insertion in model container [2021-11-25 19:08:24,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:08:24,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:08:24,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2021-11-25 19:08:24,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:08:24,401 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:08:24,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2021-11-25 19:08:24,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:08:24,432 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:08:24,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24 WrapperNode [2021-11-25 19:08:24,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:08:24,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:08:24,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:08:24,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:08:24,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,466 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2021-11-25 19:08:24,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:08:24,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:08:24,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:08:24,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:08:24,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:08:24,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:08:24,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:08:24,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:08:24,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (1/1) ... [2021-11-25 19:08:24,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:08:24,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:24,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:08:24,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:08:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:08:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:08:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:08:24,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:08:24,611 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:08:24,613 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:08:24,690 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:08:24,705 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:08:24,706 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:08:24,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:08:24 BoogieIcfgContainer [2021-11-25 19:08:24,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:08:24,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:08:24,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:08:24,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:08:24,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:08:24" (1/3) ... [2021-11-25 19:08:24,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752e0f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:08:24, skipping insertion in model container [2021-11-25 19:08:24,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:24" (2/3) ... [2021-11-25 19:08:24,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752e0f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:08:24, skipping insertion in model container [2021-11-25 19:08:24,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:08:24" (3/3) ... [2021-11-25 19:08:24,716 INFO L111 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2021-11-25 19:08:24,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:08:24,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:08:24,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:08:24,768 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:08:24,768 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:08:24,782 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) [2021-11-25 19:08:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 19:08:24,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:24,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 19:08:24,788 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:24,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:24,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1850503, now seen corresponding path program 1 times [2021-11-25 19:08:24,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:08:24,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539982036] [2021-11-25 19:08:24,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:24,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:08:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:24,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:24,959 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:08:24,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539982036] [2021-11-25 19:08:24,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539982036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:08:24,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:08:24,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:08:24,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335414575] [2021-11-25 19:08:24,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:08:24,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:08:24,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:08:24,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:08:24,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:08:24,998 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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) [2021-11-25 19:08:25,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:25,024 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-11-25 19:08:25,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:08:25,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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 [2021-11-25 19:08:25,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:25,035 INFO L225 Difference]: With dead ends: 13 [2021-11-25 19:08:25,035 INFO L226 Difference]: Without dead ends: 6 [2021-11-25 19:08:25,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:08:25,056 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:25,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:08:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-11-25 19:08:25,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-11-25 19:08:25,118 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) [2021-11-25 19:08:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-25 19:08:25,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-11-25 19:08:25,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:25,121 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-11-25 19:08:25,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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) [2021-11-25 19:08:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-25 19:08:25,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 19:08:25,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:25,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 19:08:25,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:08:25,122 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:25,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash 56695734, now seen corresponding path program 1 times [2021-11-25 19:08:25,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:08:25,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488861329] [2021-11-25 19:08:25,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:25,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:08:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:25,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:25,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:08:25,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488861329] [2021-11-25 19:08:25,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488861329] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:08:25,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976827081] [2021-11-25 19:08:25,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:25,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:25,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:25,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:08:25,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:08:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:25,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:08:25,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:25,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:25,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:25,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976827081] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:25,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1672664064] [2021-11-25 19:08:25,423 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-25 19:08:25,423 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:08:25,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:08:25,447 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:08:25,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:08:25,636 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:08:25,717 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69#(and (= (ite (= (mod |ULTIMATE.start_main_~zz~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 16 (mod |ULTIMATE.start_main_~i~0#1| 4294967296)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 19:08:25,717 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:08:25,717 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:08:25,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-25 19:08:25,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338736972] [2021-11-25 19:08:25,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 19:08:25,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:08:25,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:08:25,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:08:25,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:08:25,721 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:08:25,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:25,756 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-11-25 19:08:25,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:08:25,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 19:08:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:25,758 INFO L225 Difference]: With dead ends: 12 [2021-11-25 19:08:25,758 INFO L226 Difference]: Without dead ends: 9 [2021-11-25 19:08:25,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-25 19:08:25,760 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:25,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:08:25,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-25 19:08:25,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-25 19:08:25,764 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) [2021-11-25 19:08:25,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-25 19:08:25,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-11-25 19:08:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:25,765 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-25 19:08:25,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:08:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-25 19:08:25,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:08:25,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:25,767 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2021-11-25 19:08:25,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:25,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:25,983 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:25,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:25,984 INFO L85 PathProgramCache]: Analyzing trace with hash 435294279, now seen corresponding path program 2 times [2021-11-25 19:08:25,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:08:25,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952447610] [2021-11-25 19:08:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:25,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:08:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:26,085 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:08:26,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952447610] [2021-11-25 19:08:26,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952447610] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:08:26,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349072235] [2021-11-25 19:08:26,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:08:26,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:26,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:26,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:08:26,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:08:26,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 19:08:26,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:26,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 19:08:26,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:26,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:26,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349072235] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:26,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1391935220] [2021-11-25 19:08:26,335 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-25 19:08:26,335 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:08:26,336 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:08:26,336 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:08:26,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:08:26,421 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:08:26,528 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '160#(and (= (ite (= (mod |ULTIMATE.start_main_~zz~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 16 (mod |ULTIMATE.start_main_~i~0#1| 4294967296)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 19:08:26,529 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:08:26,529 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:08:26,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-25 19:08:26,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741747437] [2021-11-25 19:08:26,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 19:08:26,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 19:08:26,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:08:26,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 19:08:26,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-11-25 19:08:26,532 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 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) [2021-11-25 19:08:26,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:26,892 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-11-25 19:08:26,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:08:26,893 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 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 8 [2021-11-25 19:08:26,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:26,894 INFO L225 Difference]: With dead ends: 18 [2021-11-25 19:08:26,894 INFO L226 Difference]: Without dead ends: 15 [2021-11-25 19:08:26,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:08:26,896 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:26,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:08:26,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-25 19:08:26,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-25 19:08:26,903 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) [2021-11-25 19:08:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-25 19:08:26,903 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-11-25 19:08:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:26,904 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-25 19:08:26,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 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) [2021-11-25 19:08:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-25 19:08:26,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 19:08:26,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:26,905 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2021-11-25 19:08:26,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:27,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-25 19:08:27,119 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:27,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2046822887, now seen corresponding path program 3 times [2021-11-25 19:08:27,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:08:27,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223839140] [2021-11-25 19:08:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:27,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:08:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:27,360 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:08:27,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223839140] [2021-11-25 19:08:27,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223839140] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:08:27,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478061153] [2021-11-25 19:08:27,361 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:08:27,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:27,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:27,363 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:08:27,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:08:27,426 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:08:27,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:27,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 19:08:27,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:27,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:27,850 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:27,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478061153] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:27,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1834306189] [2021-11-25 19:08:27,853 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-25 19:08:27,853 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:08:27,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:08:27,853 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:08:27,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:08:27,916 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:08:28,072 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '329#(and (= (ite (= (mod |ULTIMATE.start_main_~zz~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 16 (mod |ULTIMATE.start_main_~i~0#1| 4294967296)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 19:08:28,072 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:08:28,072 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:08:28,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2021-11-25 19:08:28,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503819253] [2021-11-25 19:08:28,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 19:08:28,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-25 19:08:28,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:08:28,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-25 19:08:28,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2021-11-25 19:08:28,081 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 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) [2021-11-25 19:08:28,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:28,609 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2021-11-25 19:08:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 19:08:28,610 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 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 [2021-11-25 19:08:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:28,611 INFO L225 Difference]: With dead ends: 24 [2021-11-25 19:08:28,611 INFO L226 Difference]: Without dead ends: 21 [2021-11-25 19:08:28,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2021-11-25 19:08:28,613 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:28,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:08:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-25 19:08:28,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-25 19:08:28,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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) [2021-11-25 19:08:28,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-25 19:08:28,624 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2021-11-25 19:08:28,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:28,625 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-25 19:08:28,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 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) [2021-11-25 19:08:28,625 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-25 19:08:28,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 19:08:28,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:28,626 INFO L514 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1] [2021-11-25 19:08:28,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:28,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:28,847 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:28,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:28,847 INFO L85 PathProgramCache]: Analyzing trace with hash -606844025, now seen corresponding path program 4 times [2021-11-25 19:08:28,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:08:28,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065036322] [2021-11-25 19:08:28,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:28,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:08:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:08:28,903 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:08:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:08:28,958 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:08:28,958 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:08:28,959 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:08:28,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:08:28,963 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1] [2021-11-25 19:08:28,967 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:08:29,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:08:29 BoogieIcfgContainer [2021-11-25 19:08:29,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:08:29,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:08:29,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:08:29,014 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:08:29,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:08:24" (3/4) ... [2021-11-25 19:08:29,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 19:08:29,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:08:29,018 INFO L158 Benchmark]: Toolchain (without parser) took 4847.68ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 89.9MB in the beginning and 96.5MB in the end (delta: -6.6MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-11-25 19:08:29,019 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:08:29,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.28ms. Allocated memory is still 121.6MB. Free memory was 89.6MB in the beginning and 97.6MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 19:08:29,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 121.6MB. Free memory was 97.6MB in the beginning and 96.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:08:29,022 INFO L158 Benchmark]: Boogie Preprocessor took 18.67ms. Allocated memory is still 121.6MB. Free memory was 96.1MB in the beginning and 95.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:08:29,022 INFO L158 Benchmark]: RCFGBuilder took 221.80ms. Allocated memory is still 121.6MB. Free memory was 95.0MB in the beginning and 85.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 19:08:29,023 INFO L158 Benchmark]: TraceAbstraction took 4303.27ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 85.1MB in the beginning and 96.5MB in the end (delta: -11.4MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-11-25 19:08:29,023 INFO L158 Benchmark]: Witness Printer took 3.79ms. Allocated memory is still 146.8MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:08:29,026 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.28ms. Allocated memory is still 121.6MB. Free memory was 89.6MB in the beginning and 97.6MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 121.6MB. Free memory was 97.6MB in the beginning and 96.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.67ms. Allocated memory is still 121.6MB. Free memory was 96.1MB in the beginning and 95.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 221.80ms. Allocated memory is still 121.6MB. Free memory was 95.0MB in the beginning and 85.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4303.27ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 85.1MB in the beginning and 96.5MB in the end (delta: -11.4MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Witness Printer took 3.79ms. Allocated memory is still 146.8MB. Free memory is still 96.5MB. 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: 25]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 64, overapproximation of bitwiseAnd at line 55. Possible FailurePath: [L42] unsigned short x = __VERIFIER_nondet_ushort(); [L43] unsigned short y = __VERIFIER_nondet_ushort(); [L44] unsigned int xx; [L45] unsigned int yy; [L46] unsigned int zz; [L47] unsigned int z = 0; [L48] unsigned int i = 0; VAL [i=0, z=0] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=1] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=2] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=3] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=5] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=6] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=7] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=8] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=9] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=10] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=11] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=12] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=13] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=14] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=15] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=16] [L49] COND FALSE !(i < sizeof(x) * 8) [L53] xx = x [L54] yy = y [L55] xx = (xx | (xx << 8u)) & 16711935U [L56] xx = (xx | (xx << 4u)) & 252645135U [L57] xx = (xx | (xx << 2u)) & 858993459U [L58] xx = (xx | (xx << 1u)) & 1431655765U [L59] yy = (yy | (yy << 8u)) & 16711935U [L60] yy = (yy | (yy << 4u)) & 252645135U [L61] yy = (yy | (yy << 2u)) & 858993459U [L62] yy = (yy | (yy << 1u)) & 1431655765U [L64] zz = xx | (yy << 1U) [L66] CALL __VERIFIER_assert(z == zz) [L24] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L25] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 9 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=4, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 379 SizeOfPredicates, 3 NumberOfNonLiveVariables, 144 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 0/198 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 [2021-11-25 19:08:29,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7 --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 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:08:31,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:08:31,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:08:31,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:08:31,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:08:31,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:08:31,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:08:31,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:08:31,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:08:31,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:08:31,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:08:31,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:08:31,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:08:31,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:08:31,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:08:31,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:08:31,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:08:31,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:08:31,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:08:31,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:08:31,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:08:31,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:08:31,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:08:31,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:08:31,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:08:31,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:08:31,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:08:31,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:08:31,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:08:31,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:08:31,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:08:31,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:08:31,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:08:31,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:08:31,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:08:31,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:08:31,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:08:31,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:08:31,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:08:31,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:08:31,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:08:31,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 19:08:31,567 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:08:31,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:08:31,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:08:31,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:08:31,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:08:31,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:08:31,569 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:08:31,569 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:08:31,570 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:08:31,570 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:08:31,571 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:08:31,571 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:08:31,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:08:31,573 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:08:31,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:08:31,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:08:31,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:08:31,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:08:31,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:08:31,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 19:08:31,574 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 19:08:31,574 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 19:08:31,575 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:08:31,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:08:31,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:08:31,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:08:31,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:08:31,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 19:08:31,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:08:31,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:08:31,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:08:31,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:08:31,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:08:31,578 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 19:08:31,578 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 19:08:31,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:08:31,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:08:31,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:08:31,579 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_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb [2021-11-25 19:08:31,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:08:31,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:08:31,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:08:31,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:08:31,987 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:08:31,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/bitvector/interleave_bits.i [2021-11-25 19:08:32,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data/44fe8c112/adffa7ae95094de99b89574e7204ca19/FLAG4971e26d8 [2021-11-25 19:08:32,634 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:08:32,635 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/sv-benchmarks/c/bitvector/interleave_bits.i [2021-11-25 19:08:32,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data/44fe8c112/adffa7ae95094de99b89574e7204ca19/FLAG4971e26d8 [2021-11-25 19:08:32,972 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/data/44fe8c112/adffa7ae95094de99b89574e7204ca19 [2021-11-25 19:08:32,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:08:32,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:08:32,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:08:32,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:08:32,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:08:32,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:08:32" (1/1) ... [2021-11-25 19:08:32,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e93cd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:32, skipping insertion in model container [2021-11-25 19:08:32,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:08:32" (1/1) ... [2021-11-25 19:08:33,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:08:33,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:08:33,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2021-11-25 19:08:33,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:08:33,254 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:08:33,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2021-11-25 19:08:33,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:08:33,312 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:08:33,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33 WrapperNode [2021-11-25 19:08:33,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:08:33,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:08:33,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:08:33,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:08:33,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,352 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2021-11-25 19:08:33,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:08:33,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:08:33,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:08:33,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:08:33,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:08:33,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:08:33,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:08:33,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:08:33,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (1/1) ... [2021-11-25 19:08:33,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:08:33,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:33,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:08:33,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:08:33,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:08:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 19:08:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:08:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:08:33,542 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:08:33,543 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:08:33,708 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:08:33,713 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:08:33,713 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:08:33,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:08:33 BoogieIcfgContainer [2021-11-25 19:08:33,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:08:33,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:08:33,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:08:33,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:08:33,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:08:32" (1/3) ... [2021-11-25 19:08:33,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3809176d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:08:33, skipping insertion in model container [2021-11-25 19:08:33,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:33" (2/3) ... [2021-11-25 19:08:33,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3809176d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:08:33, skipping insertion in model container [2021-11-25 19:08:33,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:08:33" (3/3) ... [2021-11-25 19:08:33,723 INFO L111 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2021-11-25 19:08:33,728 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:08:33,728 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:08:33,774 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:08:33,781 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:08:33,781 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:08:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-11-25 19:08:33,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 19:08:33,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:33,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 19:08:33,799 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:33,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:33,804 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-25 19:08:33,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:08:33,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736253073] [2021-11-25 19:08:33,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:33,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:08:33,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:08:33,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:08:33,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 19:08:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:33,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 19:08:33,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:34,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:08:34,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:08:34,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736253073] [2021-11-25 19:08:34,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736253073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:08:34,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:08:34,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:08:34,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120351246] [2021-11-25 19:08:34,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:08:34,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:08:34,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:08:34,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:08:34,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:08:34,049 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-11-25 19:08:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:34,071 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-11-25 19:08:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:08:34,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2021-11-25 19:08:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:34,081 INFO L225 Difference]: With dead ends: 20 [2021-11-25 19:08:34,081 INFO L226 Difference]: Without dead ends: 8 [2021-11-25 19:08:34,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:08:34,088 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:34,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:08:34,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-25 19:08:34,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-25 19:08:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2021-11-25 19:08:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-25 19:08:34,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-11-25 19:08:34,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:34,121 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-25 19:08:34,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-11-25 19:08:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-25 19:08:34,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 19:08:34,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:34,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:08:34,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:34,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:08:34,333 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:34,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:34,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2021-11-25 19:08:34,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:08:34,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021238280] [2021-11-25 19:08:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:34,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:08:34,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:08:34,340 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:08:34,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 19:08:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:34,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 19:08:34,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:34,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:34,454 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:08:34,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021238280] [2021-11-25 19:08:34,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021238280] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:34,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1547088941] [2021-11-25 19:08:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:34,455 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 19:08:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 19:08:34,458 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 19:08:34,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-25 19:08:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:34,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 19:08:34,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:34,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:34,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:34,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1547088941] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:34,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273343651] [2021-11-25 19:08:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:34,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:34,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:34,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:08:34,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:08:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:34,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 19:08:34,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:34,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:34,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273343651] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:34,741 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 19:08:34,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 7 [2021-11-25 19:08:34,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845155351] [2021-11-25 19:08:34,749 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 19:08:34,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:08:34,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:08:34,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:08:34,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:08:34,751 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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) [2021-11-25 19:08:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:34,819 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-25 19:08:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:08:34,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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 [2021-11-25 19:08:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:34,821 INFO L225 Difference]: With dead ends: 15 [2021-11-25 19:08:34,821 INFO L226 Difference]: Without dead ends: 11 [2021-11-25 19:08:34,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:08:34,823 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:34,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:08:34,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-25 19:08:34,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-25 19:08:34,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 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) [2021-11-25 19:08:34,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-11-25 19:08:34,828 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2021-11-25 19:08:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:34,829 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-11-25 19:08:34,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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) [2021-11-25 19:08:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-11-25 19:08:34,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 19:08:34,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:34,830 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2021-11-25 19:08:34,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:35,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:35,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:35,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:35,441 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:35,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:35,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1922847381, now seen corresponding path program 2 times [2021-11-25 19:08:35,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:08:35,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831695383] [2021-11-25 19:08:35,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 19:08:35,443 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:08:35,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:08:35,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:08:35,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 19:08:35,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 19:08:35,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:35,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 19:08:35,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:35,562 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:35,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:35,662 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:08:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831695383] [2021-11-25 19:08:35,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831695383] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2031391810] [2021-11-25 19:08:35,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 19:08:35,664 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 19:08:35,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 19:08:35,667 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 19:08:35,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-25 19:08:35,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 19:08:35,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:35,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 19:08:35,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:35,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:35,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2031391810] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:35,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912896849] [2021-11-25 19:08:35,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 19:08:35,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:35,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:35,878 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:08:35,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 19:08:35,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 19:08:35,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:35,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 19:08:35,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:35,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:36,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912896849] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:36,128 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 19:08:36,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 16 [2021-11-25 19:08:36,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619942740] [2021-11-25 19:08:36,128 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 19:08:36,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 19:08:36,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:08:36,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 19:08:36,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2021-11-25 19:08:36,132 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 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) [2021-11-25 19:08:36,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:36,383 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2021-11-25 19:08:36,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 19:08:36,383 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 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 10 [2021-11-25 19:08:36,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:36,384 INFO L225 Difference]: With dead ends: 21 [2021-11-25 19:08:36,384 INFO L226 Difference]: Without dead ends: 17 [2021-11-25 19:08:36,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=265, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:08:36,390 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:36,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 28 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:08:36,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-25 19:08:36,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-25 19:08:36,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2021-11-25 19:08:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-11-25 19:08:36,405 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2021-11-25 19:08:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:36,406 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-11-25 19:08:36,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 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) [2021-11-25 19:08:36,407 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-11-25 19:08:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 19:08:36,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:36,408 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2021-11-25 19:08:36,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:36,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:36,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-25 19:08:37,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:08:37,011 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:37,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:37,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1628318539, now seen corresponding path program 3 times [2021-11-25 19:08:37,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:08:37,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432811808] [2021-11-25 19:08:37,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:08:37,013 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:08:37,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:08:37,020 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:08:37,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-25 19:08:37,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-25 19:08:37,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:37,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-25 19:08:37,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:37,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:37,848 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:08:37,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432811808] [2021-11-25 19:08:37,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432811808] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:37,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1796485486] [2021-11-25 19:08:37,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:08:37,849 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 19:08:37,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 19:08:37,860 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 19:08:37,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-25 19:08:38,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-25 19:08:38,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:38,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-25 19:08:38,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:38,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:38,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1796485486] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:38,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839550177] [2021-11-25 19:08:38,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:08:38,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:38,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:38,167 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:08:38,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 19:08:38,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-25 19:08:38,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:38,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-25 19:08:38,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:38,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:38,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839550177] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:38,405 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 19:08:38,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13, 13, 13] total 24 [2021-11-25 19:08:38,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109321627] [2021-11-25 19:08:38,411 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 19:08:38,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-25 19:08:38,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:08:38,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-25 19:08:38,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2021-11-25 19:08:38,414 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 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) [2021-11-25 19:08:39,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:39,664 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-11-25 19:08:39,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-25 19:08:39,665 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 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 16 [2021-11-25 19:08:39,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:39,666 INFO L225 Difference]: With dead ends: 33 [2021-11-25 19:08:39,666 INFO L226 Difference]: Without dead ends: 29 [2021-11-25 19:08:39,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=370, Invalid=820, Unknown=0, NotChecked=0, Total=1190 [2021-11-25 19:08:39,668 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 35 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:39,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 32 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:08:39,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-25 19:08:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-25 19:08:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 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) [2021-11-25 19:08:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-11-25 19:08:39,676 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 16 [2021-11-25 19:08:39,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:39,677 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-11-25 19:08:39,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 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) [2021-11-25 19:08:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-11-25 19:08:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 19:08:39,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:39,684 INFO L514 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1] [2021-11-25 19:08:39,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:39,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:40,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:40,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 19:08:40,299 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:40,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash 26919211, now seen corresponding path program 4 times [2021-11-25 19:08:40,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:08:40,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002684788] [2021-11-25 19:08:40,300 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:08:40,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:08:40,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:08:40,302 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:08:40,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-25 19:08:40,410 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:08:40,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:40,418 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-25 19:08:40,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:42,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:09:29,839 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1| (_ BitVec 16)) (|ULTIMATE.start_main_~y~0#1| (_ BitVec 16))) (let ((.cse0 ((_ zero_extend 16) |ULTIMATE.start_main_~x~0#1|)) (.cse1 ((_ zero_extend 16) |ULTIMATE.start_main_~y~0#1|))) (= (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (_ bv0 32) (bvor (bvshl (bvand .cse0 (_ bv1 32)) (_ bv0 32)) (bvshl (bvand .cse1 (_ bv1 32)) (_ bv1 32)))) (bvor (bvshl (bvand .cse0 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse1 (_ bv2 32)) (_ bv2 32)))) (bvor (bvshl (bvand .cse0 (_ bv4 32)) (_ bv2 32)) (bvshl (bvand .cse1 (_ bv4 32)) (_ bv3 32)))) (bvor (bvshl (bvand .cse0 (_ bv8 32)) (_ bv3 32)) (bvshl (bvand .cse1 (_ bv8 32)) (_ bv4 32)))) (bvor (bvshl (bvand .cse0 (_ bv16 32)) (_ bv4 32)) (bvshl (bvand .cse1 (_ bv16 32)) (_ bv5 32)))) (bvor (bvshl (bvand .cse0 (_ bv32 32)) (_ bv5 32)) (bvshl (bvand .cse1 (_ bv32 32)) (_ bv6 32)))) (bvor (bvshl (bvand .cse0 (_ bv64 32)) (_ bv6 32)) (bvshl (bvand .cse1 (_ bv64 32)) (_ bv7 32)))) (bvor (bvshl (bvand .cse0 (_ bv128 32)) (_ bv7 32)) (bvshl (bvand .cse1 (_ bv128 32)) (_ bv8 32)))) (bvor (bvshl (bvand .cse0 (_ bv256 32)) (_ bv8 32)) (bvshl (bvand .cse1 (_ bv256 32)) (_ bv9 32)))) (bvor (bvshl (bvand .cse0 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse1 (_ bv512 32)) (_ bv10 32)))) (bvor (bvshl (bvand .cse0 (_ bv1024 32)) (_ bv10 32)) (bvshl (bvand .cse1 (_ bv1024 32)) (_ bv11 32)))) (bvor (bvshl (bvand .cse0 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse1 (_ bv2048 32)) (_ bv12 32)))) (bvor (bvshl (bvand .cse0 (_ bv4096 32)) (_ bv12 32)) (bvshl (bvand .cse1 (_ bv4096 32)) (_ bv13 32)))) (bvor (bvshl (bvand .cse0 (_ bv8192 32)) (_ bv13 32)) (bvshl (bvand .cse1 (_ bv8192 32)) (_ bv14 32)))) (bvor (bvshl (bvand .cse0 (_ bv16384 32)) (_ bv14 32)) (bvshl (bvand .cse1 (_ bv16384 32)) (_ bv15 32)))) (bvor (bvshl (bvand .cse0 (_ bv32768 32)) (_ bv15 32)) (bvshl (bvand .cse1 (_ bv32768 32)) (_ bv16 32)))) (let ((.cse31 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv15 32)))) (bvor (let ((.cse29 (bvadd (_ bv14 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse27 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv13 32)))) (bvor (let ((.cse25 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv12 32)))) (bvor (let ((.cse23 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv11 32)))) (bvor (let ((.cse21 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv10 32)))) (bvor (let ((.cse19 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv9 32)))) (bvor (let ((.cse17 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv8 32)))) (bvor (let ((.cse15 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv7 32)))) (bvor (let ((.cse13 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv6 32)))) (bvor (let ((.cse11 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv5 32)))) (bvor (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse7 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv3 32)))) (bvor (let ((.cse5 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv2 32)))) (bvor (let ((.cse3 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv1 32)))) (bvor (bvor |c_ULTIMATE.start_main_~z~0#1| (let ((.cse2 (bvshl (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (bvshl (bvand .cse0 .cse2) |c_ULTIMATE.start_main_~i~0#1|) (bvshl (bvand .cse1 .cse2) .cse3)))) (let ((.cse4 (bvshl (_ bv1 32) .cse3))) (bvor (bvshl (bvand .cse0 .cse4) .cse3) (bvshl (bvand .cse1 .cse4) .cse5))))) (let ((.cse6 (bvshl (_ bv1 32) .cse5))) (bvor (bvshl (bvand .cse0 .cse6) .cse5) (bvshl (bvand .cse1 .cse6) .cse7))))) (let ((.cse8 (bvshl (_ bv1 32) .cse7))) (bvor (bvshl (bvand .cse0 .cse8) .cse7) (bvshl (bvand .cse1 .cse8) .cse9))))) (let ((.cse10 (bvshl (_ bv1 32) .cse9))) (bvor (bvshl (bvand .cse0 .cse10) .cse9) (bvshl (bvand .cse1 .cse10) .cse11))))) (let ((.cse12 (bvshl (_ bv1 32) .cse11))) (bvor (bvshl (bvand .cse0 .cse12) .cse11) (bvshl (bvand .cse1 .cse12) .cse13))))) (let ((.cse14 (bvshl (_ bv1 32) .cse13))) (bvor (bvshl (bvand .cse0 .cse14) .cse13) (bvshl (bvand .cse1 .cse14) .cse15))))) (let ((.cse16 (bvshl (_ bv1 32) .cse15))) (bvor (bvshl (bvand .cse0 .cse16) .cse15) (bvshl (bvand .cse1 .cse16) .cse17))))) (let ((.cse18 (bvshl (_ bv1 32) .cse17))) (bvor (bvshl (bvand .cse0 .cse18) .cse17) (bvshl (bvand .cse1 .cse18) .cse19))))) (let ((.cse20 (bvshl (_ bv1 32) .cse19))) (bvor (bvshl (bvand .cse0 .cse20) .cse19) (bvshl (bvand .cse1 .cse20) .cse21))))) (let ((.cse22 (bvshl (_ bv1 32) .cse21))) (bvor (bvshl (bvand .cse0 .cse22) .cse21) (bvshl (bvand .cse1 .cse22) .cse23))))) (let ((.cse24 (bvshl (_ bv1 32) .cse23))) (bvor (bvshl (bvand .cse0 .cse24) .cse23) (bvshl (bvand .cse1 .cse24) .cse25))))) (let ((.cse26 (bvshl (_ bv1 32) .cse25))) (bvor (bvshl (bvand .cse0 .cse26) .cse25) (bvshl (bvand .cse1 .cse26) .cse27))))) (let ((.cse28 (bvshl (_ bv1 32) .cse27))) (bvor (bvshl (bvand .cse0 .cse28) .cse27) (bvshl (bvand .cse1 .cse28) .cse29))))) (let ((.cse30 (bvshl (_ bv1 32) .cse29))) (bvor (bvshl (bvand .cse0 .cse30) .cse29) (bvshl (bvand .cse1 .cse30) .cse31))))) (let ((.cse32 (bvshl (_ bv1 32) .cse31))) (bvor (bvshl (bvand .cse0 .cse32) .cse31) (bvshl (bvand .cse1 .cse32) (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~i~0#1|))))))))) is different from false [2021-11-25 19:09:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-25 19:09:29,914 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:09:29,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002684788] [2021-11-25 19:09:29,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002684788] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:09:29,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1054683668] [2021-11-25 19:09:29,915 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:09:29,915 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 19:09:29,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 19:09:29,927 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 19:09:29,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-25 19:09:30,215 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:09:30,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:09:30,218 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-25 19:09:30,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:09:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:09:31,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:09:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-25 19:09:32,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1054683668] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:09:32,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941431604] [2021-11-25 19:09:32,485 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:09:32,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:09:32,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:09:32,491 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:09:32,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 19:09:32,597 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:09:32,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:09:32,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-25 19:09:32,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:09:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:09:33,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:10:30,599 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:10:30,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941431604] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:10:30,600 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 19:10:30,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20, 20, 21, 21] total 55 [2021-11-25 19:10:30,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115656502] [2021-11-25 19:10:30,604 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 19:10:30,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-25 19:10:30,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:10:30,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-25 19:10:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=895, Invalid=1970, Unknown=1, NotChecked=104, Total=2970 [2021-11-25 19:10:30,616 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 55 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 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) [2021-11-25 19:10:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:10:32,485 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-11-25 19:10:32,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 19:10:32,485 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 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 22 [2021-11-25 19:10:32,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:10:32,485 INFO L225 Difference]: With dead ends: 31 [2021-11-25 19:10:32,485 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 19:10:32,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 49 SyntacticMatches, 25 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 104.9s TimeCoverageRelationStatistics Valid=933, Invalid=2040, Unknown=1, NotChecked=106, Total=3080 [2021-11-25 19:10:32,488 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:10:32,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 266 Invalid, 0 Unknown, 34 Unchecked, 1.6s Time] [2021-11-25 19:10:32,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 19:10:32,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 19:10:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-25 19:10:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 19:10:32,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-11-25 19:10:32,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:10:32,490 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 19:10:32,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 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) [2021-11-25 19:10:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 19:10:32,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 19:10:32,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:10:32,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-25 19:10:32,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-25 19:10:32,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-11-25 19:10:33,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 19:10:33,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 19:10:34,561 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 19:10:34,562 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-25 19:10:34,562 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 67) no Hoare annotation was computed. [2021-11-25 19:10:34,562 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-25 19:10:34,562 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 19:10:34,562 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-25 19:10:34,562 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 26) no Hoare annotation was computed. [2021-11-25 19:10:34,563 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2021-11-25 19:10:34,563 INFO L861 garLoopResultBuilder]: At program point L24-2(lines 23 28) the Hoare annotation is: true [2021-11-25 19:10:34,563 INFO L854 garLoopResultBuilder]: At program point L49-2(lines 49 52) the Hoare annotation is: (let ((.cse7 ((_ zero_extend 16) |ULTIMATE.start_main_~x~0#1|)) (.cse10 ((_ zero_extend 16) |ULTIMATE.start_main_~y~0#1|))) (let ((.cse1 (bvor (bvor (bvor (_ bv0 32) (bvor (bvshl (bvand .cse7 (_ bv1 32)) (_ bv0 32)) (bvshl (bvand .cse10 (_ bv1 32)) (_ bv1 32)))) (bvor (bvshl (bvand .cse7 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse10 (_ bv2 32)) (_ bv2 32)))) (bvor (bvshl (bvand .cse7 (_ bv4 32)) (_ bv2 32)) (bvshl (bvand .cse10 (_ bv4 32)) (_ bv3 32)))))) (let ((.cse2 (bvor .cse1 (bvor (bvshl (bvand .cse7 (_ bv8 32)) (_ bv3 32)) (bvshl (bvand .cse10 (_ bv8 32)) (_ bv4 32)))))) (let ((.cse14 (bvadd (_ bv4294967295 32) |ULTIMATE.start_main_~i~0#1|)) (.cse6 (bvor (bvor (bvor .cse2 (bvor (bvshl (bvand .cse7 (_ bv16 32)) (_ bv4 32)) (bvshl (bvand .cse10 (_ bv16 32)) (_ bv5 32)))) (bvor (bvshl (bvand .cse7 (_ bv32 32)) (_ bv5 32)) (bvshl (bvand .cse10 (_ bv32 32)) (_ bv6 32)))) (bvor (bvshl (bvand .cse7 (_ bv64 32)) (_ bv6 32)) (bvshl (bvand .cse10 (_ bv64 32)) (_ bv7 32))))) (.cse16 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv4294967294 32))) (.cse18 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv4294967293 32))) (.cse11 (bvadd (_ bv4294967292 32) |ULTIMATE.start_main_~i~0#1|))) (let ((.cse12 (let ((.cse19 (bvshl (_ bv1 32) .cse11))) (bvor (bvshl (bvand .cse7 .cse19) .cse11) (bvshl (bvand .cse10 .cse19) .cse18)))) (.cse5 (let ((.cse17 (bvshl (_ bv1 32) .cse18))) (bvor (bvshl (bvand .cse7 .cse17) .cse18) (bvshl (bvand .cse10 .cse17) .cse16)))) (.cse4 (bvor (bvor (bvor (bvor .cse6 (bvor (bvshl (bvand .cse7 (_ bv128 32)) (_ bv7 32)) (bvshl (bvand .cse10 (_ bv128 32)) (_ bv8 32)))) (bvor (bvshl (bvand .cse7 (_ bv256 32)) (_ bv8 32)) (bvshl (bvand .cse10 (_ bv256 32)) (_ bv9 32)))) (bvor (bvshl (bvand .cse7 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse10 (_ bv512 32)) (_ bv10 32)))) (bvor (bvshl (bvand .cse7 (_ bv1024 32)) (_ bv10 32)) (bvshl (bvand .cse10 (_ bv1024 32)) (_ bv11 32))))) (.cse3 (let ((.cse15 (bvshl (_ bv1 32) .cse16))) (bvor (bvshl (bvand .cse7 .cse15) .cse16) (bvshl (bvand .cse10 .cse15) .cse14)))) (.cse0 (let ((.cse13 (bvshl (_ bv1 32) .cse14))) (bvor (bvshl (bvand .cse7 .cse13) .cse14) (bvshl (bvand .cse10 .cse13) |ULTIMATE.start_main_~i~0#1|))))) (or (and (= |ULTIMATE.start_main_~i~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor (_ bv0 32) .cse0))) (and (= |ULTIMATE.start_main_~z~0#1| .cse1) (= |ULTIMATE.start_main_~i~0#1| (_ bv3 32))) (and (= |ULTIMATE.start_main_~z~0#1| (bvor .cse2 .cse0)) (= |ULTIMATE.start_main_~i~0#1| (_ bv5 32))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv2 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor (bvor (_ bv0 32) .cse3) .cse0))) (and (= (_ bv14 32) |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~z~0#1| (bvor (bvor (bvor .cse4 .cse5) .cse3) .cse0))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv9 32)) (= (bvor (bvor .cse6 .cse3) .cse0) |ULTIMATE.start_main_~z~0#1|)) (and (= |ULTIMATE.start_main_~z~0#1| (bvor (bvor (bvor (bvor (bvor .cse4 (let ((.cse9 (bvadd (_ bv4294967291 32) |ULTIMATE.start_main_~i~0#1|))) (let ((.cse8 (bvshl (_ bv1 32) .cse9))) (bvor (bvshl (bvand .cse7 .cse8) .cse9) (bvshl (bvand .cse10 .cse8) .cse11))))) .cse12) .cse5) .cse3) .cse0)) (= (_ bv16 32) |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv15 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor (bvor (bvor (bvor .cse4 .cse12) .cse5) .cse3) .cse0))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv13 32)) (= (bvor (bvor .cse4 .cse3) .cse0) |ULTIMATE.start_main_~z~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv10 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor (bvor (bvor .cse6 .cse5) .cse3) .cse0))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv7 32)) (= |ULTIMATE.start_main_~z~0#1| .cse6)) (and (= |ULTIMATE.start_main_~z~0#1| .cse2) (= (_ bv4 32) |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~z~0#1| .cse4) (= |ULTIMATE.start_main_~i~0#1| (_ bv11 32))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv12 32)) (= (bvor .cse4 .cse0) |ULTIMATE.start_main_~z~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~z~0#1| (_ bv0 32))) (and (= (bvor (bvor .cse2 .cse3) .cse0) |ULTIMATE.start_main_~z~0#1|) (= |ULTIMATE.start_main_~i~0#1| (_ bv6 32))) (and (= |ULTIMATE.start_main_~z~0#1| (bvor .cse6 .cse0)) (= |ULTIMATE.start_main_~i~0#1| (_ bv8 32))))))))) [2021-11-25 19:10:34,564 INFO L858 garLoopResultBuilder]: For program point L49-3(lines 49 52) no Hoare annotation was computed. [2021-11-25 19:10:34,567 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1] [2021-11-25 19:10:34,569 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:10:34,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:10:34 BoogieIcfgContainer [2021-11-25 19:10:34,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:10:34,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:10:34,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:10:34,643 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:10:34,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:08:33" (3/4) ... [2021-11-25 19:10:34,646 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 19:10:34,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-25 19:10:34,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-25 19:10:34,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 19:10:34,658 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 19:10:34,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:10:34,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:10:34,718 INFO L158 Benchmark]: Toolchain (without parser) took 121741.95ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 40.7MB in the beginning and 36.2MB in the end (delta: 4.5MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2021-11-25 19:10:34,718 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 60.8MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:10:34,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.00ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 43.1MB in the end (delta: -2.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 19:10:34,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.01ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:10:34,719 INFO L158 Benchmark]: Boogie Preprocessor took 46.86ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 40.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:10:34,720 INFO L158 Benchmark]: RCFGBuilder took 314.87ms. Allocated memory is still 60.8MB. Free memory was 40.2MB in the beginning and 30.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 19:10:34,720 INFO L158 Benchmark]: TraceAbstraction took 120924.85ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 30.3MB in the beginning and 42.7MB in the end (delta: -12.4MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2021-11-25 19:10:34,721 INFO L158 Benchmark]: Witness Printer took 74.67ms. Allocated memory is still 73.4MB. Free memory was 42.7MB in the beginning and 36.2MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 19:10:34,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 60.8MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.00ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 43.1MB in the end (delta: -2.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.01ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.86ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 40.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 314.87ms. Allocated memory is still 60.8MB. Free memory was 40.2MB in the beginning and 30.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 120924.85ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 30.3MB in the beginning and 42.7MB in the end (delta: -12.4MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Witness Printer took 74.67ms. Allocated memory is still 73.4MB. Free memory was 42.7MB in the beginning and 36.2MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 25]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 120.8s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 34 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 29 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 192 SyntacticMatches, 25 SemanticMatches, 113 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 106.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=4, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 20 NumberOfFragments, 2325 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 439 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 111.5s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 311 ConstructedInterpolants, 3 QuantifiedInterpolants, 31061 SizeOfPredicates, 38 NumberOfNonLiveVariables, 565 ConjunctsInSsa, 205 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 240/1212 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((((((((((((((i == 1bv32 && z == ~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)))) || (z == ~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))) && i == 3bv32)) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) && i == 5bv32)) || (i == 2bv32 && z == ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))))) || (14bv32 == i && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967293bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967294bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))))) || (i == 9bv32 && ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) == z)) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967291bv32, i))), ~bvadd64(4294967291bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967291bv32, i))), ~bvadd64(4294967292bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967292bv32, i))), ~bvadd64(4294967292bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967292bv32, i))), ~bvadd64(i, 4294967293bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967293bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967294bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) && 16bv32 == i)) || (i == 15bv32 && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967292bv32, i))), ~bvadd64(4294967292bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967292bv32, i))), ~bvadd64(i, 4294967293bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967293bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967294bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))))) || (i == 13bv32 && ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) == z)) || (i == 10bv32 && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967293bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967294bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))))) || (i == 7bv32 && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))))) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))) && 4bv32 == i)) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))) && i == 11bv32)) || (i == 12bv32 && ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) == z)) || (i == 0bv32 && z == 0bv32)) || (~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) == z && i == 6bv32)) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) && i == 8bv32) RESULT: Ultimate proved your program to be correct! [2021-11-25 19:10:34,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33ee3eb-3232-4132-a678-7bd59df5c8a0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE