./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur --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 64bit --witnessprinter.graph.data.programhash cb96b9db29eb9339445c5d18c4526e95cdc940db6fcccba6ff8e2a771f6f2248 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:34:25,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:34:25,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:34:25,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:34:25,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:34:25,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:34:25,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:34:25,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:34:25,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:34:25,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:34:25,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:34:25,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:34:25,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:34:25,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:34:25,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:34:25,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:34:25,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:34:25,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:34:25,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:34:25,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:34:25,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:34:25,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:34:25,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:34:25,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:34:25,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:34:25,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:34:25,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:34:25,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:34:25,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:34:25,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:34:25,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:34:25,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:34:25,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:34:25,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:34:25,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:34:25,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:34:25,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:34:25,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:34:25,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:34:25,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:34:25,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:34:25,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:34:25,543 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:34:25,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:34:25,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:34:25,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:34:25,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:34:25,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:34:25,545 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:34:25,546 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:34:25,546 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:34:25,546 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:34:25,547 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:34:25,548 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:34:25,548 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:34:25,548 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:34:25,548 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:34:25,549 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:34:25,549 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:34:25,549 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:34:25,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:34:25,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:34:25,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:34:25,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:34:25,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:34:25,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:34:25,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:34:25,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:34:25,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:34:25,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:34:25,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:34:25,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:34:25,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:34:25,554 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:34:25,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:34:25,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:34:25,554 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:34:25,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:34:25,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:34:25,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:34:25,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb96b9db29eb9339445c5d18c4526e95cdc940db6fcccba6ff8e2a771f6f2248 [2022-11-25 22:34:25,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:34:25,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:34:25,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:34:25,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:34:25,951 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:34:25,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c [2022-11-25 22:34:29,257 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:34:29,622 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:34:29,623 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c [2022-11-25 22:34:29,638 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/data/d69e1b2f6/1b5a30ab3d33463a9a694921c3de4b11/FLAGb84226891 [2022-11-25 22:34:29,655 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/data/d69e1b2f6/1b5a30ab3d33463a9a694921c3de4b11 [2022-11-25 22:34:29,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:34:29,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:34:29,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:34:29,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:34:29,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:34:29,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:34:29" (1/1) ... [2022-11-25 22:34:29,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d506a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:29, skipping insertion in model container [2022-11-25 22:34:29,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:34:29" (1/1) ... [2022-11-25 22:34:29,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:34:29,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:34:30,040 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c[1014,1027] [2022-11-25 22:34:30,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:30,494 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:34:30,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c[1014,1027] [2022-11-25 22:34:30,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:30,688 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:34:30,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30 WrapperNode [2022-11-25 22:34:30,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:34:30,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:34:30,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:34:30,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:34:30,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:30,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:30,893 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1888 [2022-11-25 22:34:30,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:34:30,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:34:30,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:34:30,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:34:30,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:30,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:30,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:30,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:30,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:31,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:31,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:31,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:31,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:34:31,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:34:31,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:34:31,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:34:31,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (1/1) ... [2022-11-25 22:34:31,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:34:31,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:31,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:34:31,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:34:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:34:31,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:34:31,716 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:34:31,718 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:38:27,977 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:38:28,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:38:28,020 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:38:28,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:38:28 BoogieIcfgContainer [2022-11-25 22:38:28,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:38:28,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:38:28,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:38:28,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:38:28,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:34:29" (1/3) ... [2022-11-25 22:38:28,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50142a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:38:28, skipping insertion in model container [2022-11-25 22:38:28,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:30" (2/3) ... [2022-11-25 22:38:28,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50142a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:38:28, skipping insertion in model container [2022-11-25 22:38:28,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:38:28" (3/3) ... [2022-11-25 22:38:28,034 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.krebs.4.prop1-func-interl.c [2022-11-25 22:38:28,055 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:38:28,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:38:28,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:38:28,122 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a2c5e53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:38:28,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:38:28,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:38:28,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:38:28,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:28,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:38:28,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-25 22:38:28,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:28,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759577515] [2022-11-25 22:38:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:28,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:38:28,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:38:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:38:28,816 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:38:28,828 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:38:28,829 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:38:28,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:38:28,836 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:38:28,842 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:38:28,884 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 22:38:28,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:38:28 BoogieIcfgContainer [2022-11-25 22:38:28,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:38:28,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:38:28,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:38:28,899 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:38:28,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:38:28" (3/4) ... [2022-11-25 22:38:28,903 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:38:28,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:38:28,904 INFO L158 Benchmark]: Toolchain (without parser) took 239245.17ms. Allocated memory was 165.7MB in the beginning and 903.9MB in the end (delta: 738.2MB). Free memory was 125.7MB in the beginning and 438.9MB in the end (delta: -313.2MB). Peak memory consumption was 426.1MB. Max. memory is 16.1GB. [2022-11-25 22:38:28,905 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:38:28,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1028.45ms. Allocated memory is still 165.7MB. Free memory was 125.7MB in the beginning and 90.3MB in the end (delta: 35.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 22:38:28,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 203.57ms. Allocated memory is still 165.7MB. Free memory was 90.3MB in the beginning and 68.3MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 22:38:28,907 INFO L158 Benchmark]: Boogie Preprocessor took 170.41ms. Allocated memory is still 165.7MB. Free memory was 68.3MB in the beginning and 57.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 22:38:28,907 INFO L158 Benchmark]: RCFGBuilder took 236957.44ms. Allocated memory was 165.7MB in the beginning and 903.9MB in the end (delta: 738.2MB). Free memory was 57.4MB in the beginning and 491.3MB in the end (delta: -433.9MB). Peak memory consumption was 495.5MB. Max. memory is 16.1GB. [2022-11-25 22:38:28,908 INFO L158 Benchmark]: TraceAbstraction took 873.20ms. Allocated memory is still 903.9MB. Free memory was 490.3MB in the beginning and 439.9MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-25 22:38:28,909 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 903.9MB. Free memory was 439.9MB in the beginning and 438.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:38:28,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1028.45ms. Allocated memory is still 165.7MB. Free memory was 125.7MB in the beginning and 90.3MB in the end (delta: 35.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 203.57ms. Allocated memory is still 165.7MB. Free memory was 90.3MB in the beginning and 68.3MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 170.41ms. Allocated memory is still 165.7MB. Free memory was 68.3MB in the beginning and 57.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 236957.44ms. Allocated memory was 165.7MB in the beginning and 903.9MB in the end (delta: 738.2MB). Free memory was 57.4MB in the beginning and 491.3MB in the end (delta: -433.9MB). Peak memory consumption was 495.5MB. Max. memory is 16.1GB. * TraceAbstraction took 873.20ms. Allocated memory is still 903.9MB. Free memory was 490.3MB in the beginning and 439.9MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 903.9MB. Free memory was 439.9MB in the beginning and 438.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 251, overapproximation of bitwiseOr at line 246, overapproximation of bitwiseAnd at line 202. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_30 = 0; [L39] const SORT_3 var_91 = 0; [L40] const SORT_4 var_93 = 80; [L41] const SORT_2 var_97 = 15; [L42] const SORT_4 var_101 = 1; [L43] const SORT_2 var_107 = 4; [L44] const SORT_4 var_109 = 2; [L45] const SORT_2 var_133 = 12; [L46] const SORT_2 var_160 = 2; [L47] const SORT_2 var_225 = 10; [L49] SORT_1 input_98; [L50] SORT_1 input_108; [L51] SORT_1 input_114; [L52] SORT_1 input_138; [L53] SORT_1 input_141; [L54] SORT_1 input_142; [L55] SORT_1 input_143; [L56] SORT_1 input_144; [L57] SORT_1 input_145; [L58] SORT_1 input_146; [L59] SORT_1 input_167; [L60] SORT_1 input_168; [L61] SORT_1 input_169; [L62] SORT_1 input_194; [L63] SORT_1 input_198; [L64] SORT_1 input_199; [L65] SORT_1 input_245; [L66] SORT_1 input_248; [L67] SORT_1 input_249; [L68] SORT_1 input_272; [L69] SORT_1 input_293; [L70] SORT_1 input_314; [L72] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L75] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L76] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_2 init_7_arg_1 = var_5; [L116] state_6 = init_7_arg_1 [L117] SORT_2 init_9_arg_1 = var_5; [L118] state_8 = init_9_arg_1 [L119] SORT_2 init_11_arg_1 = var_5; [L120] state_10 = init_11_arg_1 [L121] SORT_2 init_13_arg_1 = var_5; [L122] state_12 = init_13_arg_1 [L123] SORT_2 init_15_arg_1 = var_5; [L124] state_14 = init_15_arg_1 [L125] SORT_2 init_17_arg_1 = var_5; [L126] state_16 = init_17_arg_1 [L127] SORT_2 init_19_arg_1 = var_5; [L128] state_18 = init_19_arg_1 [L129] SORT_2 init_21_arg_1 = var_5; [L130] state_20 = init_21_arg_1 [L131] SORT_2 init_23_arg_1 = var_5; [L132] state_22 = init_23_arg_1 [L133] SORT_2 init_25_arg_1 = var_5; [L134] state_24 = init_25_arg_1 [L135] SORT_2 init_27_arg_1 = var_5; [L136] state_26 = init_27_arg_1 [L137] SORT_2 init_29_arg_1 = var_5; [L138] state_28 = init_29_arg_1 [L139] SORT_1 init_32_arg_1 = var_30; [L140] state_31 = init_32_arg_1 [L141] SORT_1 init_34_arg_1 = var_30; [L142] state_33 = init_34_arg_1 [L143] SORT_1 init_36_arg_1 = var_30; [L144] state_35 = init_36_arg_1 [L145] SORT_1 init_38_arg_1 = var_30; [L146] state_37 = init_38_arg_1 [L147] SORT_1 init_40_arg_1 = var_30; [L148] state_39 = init_40_arg_1 [L149] SORT_1 init_42_arg_1 = var_30; [L150] state_41 = init_42_arg_1 [L151] SORT_1 init_44_arg_1 = var_30; [L152] state_43 = init_44_arg_1 [L153] SORT_1 init_46_arg_1 = var_30; [L154] state_45 = init_46_arg_1 [L155] SORT_1 init_48_arg_1 = var_30; [L156] state_47 = init_48_arg_1 [L157] SORT_1 init_50_arg_1 = var_30; [L158] state_49 = init_50_arg_1 [L159] SORT_1 init_52_arg_1 = var_30; [L160] state_51 = init_52_arg_1 [L161] SORT_1 init_54_arg_1 = var_30; [L162] state_53 = init_54_arg_1 [L163] SORT_1 init_56_arg_1 = var_30; [L164] state_55 = init_56_arg_1 [L165] SORT_1 init_58_arg_1 = var_30; [L166] state_57 = init_58_arg_1 [L167] SORT_1 init_60_arg_1 = var_30; [L168] state_59 = init_60_arg_1 [L169] SORT_1 init_62_arg_1 = var_30; [L170] state_61 = init_62_arg_1 [L171] SORT_1 init_64_arg_1 = var_30; [L172] state_63 = init_64_arg_1 [L173] SORT_1 init_66_arg_1 = var_30; [L174] state_65 = init_66_arg_1 [L175] SORT_1 init_68_arg_1 = var_30; [L176] state_67 = init_68_arg_1 [L177] SORT_1 init_70_arg_1 = var_30; [L178] state_69 = init_70_arg_1 [L179] SORT_1 init_72_arg_1 = var_30; [L180] state_71 = init_72_arg_1 [L181] SORT_1 init_74_arg_1 = var_30; [L182] state_73 = init_74_arg_1 [L183] SORT_1 init_76_arg_1 = var_30; [L184] state_75 = init_76_arg_1 [L185] SORT_1 init_78_arg_1 = var_30; [L186] state_77 = init_78_arg_1 [L187] SORT_1 init_80_arg_1 = var_30; [L188] state_79 = init_80_arg_1 [L189] SORT_1 init_82_arg_1 = var_30; [L190] state_81 = init_82_arg_1 [L191] SORT_1 init_84_arg_1 = var_30; [L192] state_83 = init_84_arg_1 [L193] SORT_1 init_86_arg_1 = var_30; [L194] state_85 = init_86_arg_1 [L195] SORT_1 init_88_arg_1 = var_30; [L196] state_87 = init_88_arg_1 [L197] SORT_1 init_90_arg_1 = var_30; [L198] state_89 = init_90_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, var_101=1, var_107=4, var_109=2, var_133=12, var_160=2, var_225=10, var_30=0, var_5=0, var_91=0, var_93=80, var_97=15] [L201] input_98 = __VERIFIER_nondet_uchar() [L202] input_98 = input_98 & mask_SORT_1 [L203] input_108 = __VERIFIER_nondet_uchar() [L204] input_108 = input_108 & mask_SORT_1 [L205] input_114 = __VERIFIER_nondet_uchar() [L206] input_114 = input_114 & mask_SORT_1 [L207] input_138 = __VERIFIER_nondet_uchar() [L208] input_138 = input_138 & mask_SORT_1 [L209] input_141 = __VERIFIER_nondet_uchar() [L210] input_141 = input_141 & mask_SORT_1 [L211] input_142 = __VERIFIER_nondet_uchar() [L212] input_142 = input_142 & mask_SORT_1 [L213] input_143 = __VERIFIER_nondet_uchar() [L214] input_143 = input_143 & mask_SORT_1 [L215] input_144 = __VERIFIER_nondet_uchar() [L216] input_144 = input_144 & mask_SORT_1 [L217] input_145 = __VERIFIER_nondet_uchar() [L218] input_145 = input_145 & mask_SORT_1 [L219] input_146 = __VERIFIER_nondet_uchar() [L220] input_146 = input_146 & mask_SORT_1 [L221] input_167 = __VERIFIER_nondet_uchar() [L222] input_167 = input_167 & mask_SORT_1 [L223] input_168 = __VERIFIER_nondet_uchar() [L224] input_168 = input_168 & mask_SORT_1 [L225] input_169 = __VERIFIER_nondet_uchar() [L226] input_169 = input_169 & mask_SORT_1 [L227] input_194 = __VERIFIER_nondet_uchar() [L228] input_194 = input_194 & mask_SORT_1 [L229] input_198 = __VERIFIER_nondet_uchar() [L230] input_198 = input_198 & mask_SORT_1 [L231] input_199 = __VERIFIER_nondet_uchar() [L232] input_199 = input_199 & mask_SORT_1 [L233] input_245 = __VERIFIER_nondet_uchar() [L234] input_245 = input_245 & mask_SORT_1 [L235] input_248 = __VERIFIER_nondet_uchar() [L236] input_248 = input_248 & mask_SORT_1 [L237] input_249 = __VERIFIER_nondet_uchar() [L238] input_249 = input_249 & mask_SORT_1 [L239] input_272 = __VERIFIER_nondet_uchar() [L240] input_293 = __VERIFIER_nondet_uchar() [L241] input_314 = __VERIFIER_nondet_uchar() [L244] SORT_3 var_92_arg_0 = var_91; [L245] SORT_2 var_92_arg_1 = state_28; [L246] SORT_4 var_92 = ((SORT_4)var_92_arg_0 << 8) | var_92_arg_1; [L247] var_92 = var_92 & mask_SORT_4 [L248] SORT_4 var_94_arg_0 = var_92; [L249] SORT_4 var_94_arg_1 = var_93; [L250] SORT_1 var_94 = var_94_arg_0 <= var_94_arg_1; [L251] SORT_1 var_95_arg_0 = ~state_89; [L252] var_95_arg_0 = var_95_arg_0 & mask_SORT_1 [L253] SORT_1 var_95_arg_1 = ~var_94; [L254] var_95_arg_1 = var_95_arg_1 & mask_SORT_1 [L255] SORT_1 var_95 = var_95_arg_0 & var_95_arg_1; [L256] var_95 = var_95 & mask_SORT_1 [L257] SORT_1 bad_96_arg_0 = var_95; [L258] CALL __VERIFIER_assert(!(bad_96_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2022-11-25 22:38:28,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur --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 64bit --witnessprinter.graph.data.programhash cb96b9db29eb9339445c5d18c4526e95cdc940db6fcccba6ff8e2a771f6f2248 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:38:31,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:38:31,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:38:31,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:38:31,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:38:31,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:38:31,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:38:31,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:38:31,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:38:31,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:38:31,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:38:31,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:38:31,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:38:31,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:38:31,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:38:31,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:38:31,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:38:31,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:38:31,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:38:31,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:38:31,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:38:31,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:38:31,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:38:31,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:38:31,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:38:31,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:38:31,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:38:31,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:38:31,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:38:31,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:38:31,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:38:31,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:38:31,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:38:31,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:38:31,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:38:31,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:38:31,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:38:31,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:38:31,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:38:31,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:38:31,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:38:31,549 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 22:38:31,591 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:38:31,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:38:31,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:38:31,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:38:31,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:38:31,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:38:31,595 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:38:31,596 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:38:31,596 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:38:31,596 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:38:31,597 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:38:31,598 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:38:31,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:38:31,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:38:31,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:38:31,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:38:31,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:38:31,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:38:31,601 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:38:31,601 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:38:31,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:38:31,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:38:31,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:38:31,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:38:31,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:38:31,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:38:31,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:38:31,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:38:31,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:38:31,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:38:31,604 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:38:31,605 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:38:31,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:38:31,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:38:31,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:38:31,606 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_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb96b9db29eb9339445c5d18c4526e95cdc940db6fcccba6ff8e2a771f6f2248 [2022-11-25 22:38:32,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:38:32,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:38:32,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:38:32,058 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:38:32,059 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:38:32,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c [2022-11-25 22:38:35,226 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:38:35,631 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:38:35,632 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c [2022-11-25 22:38:35,648 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/data/51378758a/96451e2619fd494eb8391377cd73f18b/FLAG539eeaf0f [2022-11-25 22:38:35,674 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/data/51378758a/96451e2619fd494eb8391377cd73f18b [2022-11-25 22:38:35,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:38:35,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:38:35,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:38:35,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:38:35,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:38:35,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:38:35" (1/1) ... [2022-11-25 22:38:35,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7d6301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:35, skipping insertion in model container [2022-11-25 22:38:35,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:38:35" (1/1) ... [2022-11-25 22:38:35,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:38:35,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:38:35,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c[1014,1027] [2022-11-25 22:38:36,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:38:36,379 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:38:36,390 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c[1014,1027] [2022-11-25 22:38:36,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:38:36,548 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:38:36,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36 WrapperNode [2022-11-25 22:38:36,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:38:36,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:38:36,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:38:36,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:38:36,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,716 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1888 [2022-11-25 22:38:36,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:38:36,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:38:36,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:38:36,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:38:36,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,831 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:38:36,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:38:36,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:38:36,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:38:36,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (1/1) ... [2022-11-25 22:38:36,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:38:36,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:36,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:38:36,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:38:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:38:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:38:37,526 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:38:37,528 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:38:40,930 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:38:40,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:38:40,937 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:38:40,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:38:40 BoogieIcfgContainer [2022-11-25 22:38:40,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:38:40,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:38:40,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:38:40,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:38:40,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:38:35" (1/3) ... [2022-11-25 22:38:40,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0e787f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:38:40, skipping insertion in model container [2022-11-25 22:38:40,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:36" (2/3) ... [2022-11-25 22:38:40,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0e787f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:38:40, skipping insertion in model container [2022-11-25 22:38:40,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:38:40" (3/3) ... [2022-11-25 22:38:40,949 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.krebs.4.prop1-func-interl.c [2022-11-25 22:38:40,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:38:40,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:38:41,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:38:41,021 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4437bfe4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:38:41,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:38:41,026 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) [2022-11-25 22:38:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:38:41,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:41,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:38:41,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:41,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:41,039 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 22:38:41,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:38:41,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809566415] [2022-11-25 22:38:41,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:41,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:38:41,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:38:41,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:38:41,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:38:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:41,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 22:38:41,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:41,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:41,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:38:41,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809566415] [2022-11-25 22:38:41,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809566415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:41,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:41,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:38:41,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637496207] [2022-11-25 22:38:41,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:41,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:38:41,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:38:41,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:38:41,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:38:41,806 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:38:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:42,132 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 22:38:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:38:42,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 22:38:42,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:42,142 INFO L225 Difference]: With dead ends: 20 [2022-11-25 22:38:42,142 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 22:38:42,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:42,148 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:42,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:38:42,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 22:38:42,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 22:38:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:38:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 22:38:42,181 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 22:38:42,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:42,181 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 22:38:42,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:38:42,182 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 22:38:42,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:38:42,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:42,182 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:42,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:42,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:38:42,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:42,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:42,384 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 22:38:42,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:38:42,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833383368] [2022-11-25 22:38:42,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:42,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:38:42,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:38:42,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:38:42,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:38:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:43,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-25 22:38:43,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:43,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:38:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:45,370 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:38:45,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833383368] [2022-11-25 22:38:45,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833383368] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:38:45,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2068552520] [2022-11-25 22:38:45,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:45,371 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:38:45,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:38:45,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:38:45,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-25 22:38:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:47,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-25 22:38:47,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:47,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:38:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:48,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2068552520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:38:48,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032577715] [2022-11-25 22:38:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:48,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:48,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:48,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:48,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:38:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:49,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 22:38:49,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:49,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:38:50,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:50,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032577715] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:38:50,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:38:50,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 12 [2022-11-25 22:38:50,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581766690] [2022-11-25 22:38:50,284 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:38:50,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:38:50,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:38:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:38:50,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:38:50,287 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:38:53,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:53,055 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-25 22:38:53,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:38:53,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 22:38:53,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:53,056 INFO L225 Difference]: With dead ends: 19 [2022-11-25 22:38:53,056 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 22:38:53,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:38:53,058 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:53,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 18 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:38:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 22:38:53,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 22:38:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:38:53,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 22:38:53,064 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-25 22:38:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:53,064 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 22:38:53,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:38:53,064 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 22:38:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 22:38:53,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:53,065 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 22:38:53,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:53,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:53,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:53,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:38:53,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:53,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:53,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-11-25 22:38:53,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:38:53,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347455655] [2022-11-25 22:38:53,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:38:53,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:38:53,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:38:53,692 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:38:53,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 22:38:55,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:38:55,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:38:55,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 4708 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-25 22:38:55,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:56,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:00,416 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:00,417 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:39:00,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347455655] [2022-11-25 22:39:00,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347455655] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:00,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [893458048] [2022-11-25 22:39:00,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:39:00,418 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:39:00,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:39:00,423 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:39:00,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-25 22:39:04,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:39:04,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:39:04,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 4708 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-25 22:39:04,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:05,910 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:05,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:50,578 WARN L233 SmtUtils]: Spent 30.41s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:39:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:50,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [893458048] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:50,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756393065] [2022-11-25 22:39:50,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:39:50,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:50,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:50,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:50,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:39:52,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:39:52,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:39:52,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 4708 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-25 22:39:52,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:54,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:41:02,333 WARN L233 SmtUtils]: Spent 50.92s on a formula simplification. DAG size of input: 226 DAG size of output: 204 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:41:43,716 WARN L233 SmtUtils]: Spent 26.52s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:41:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:43,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756393065] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:41:43,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:41:43,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 11, 11] total 43 [2022-11-25 22:41:43,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551594857] [2022-11-25 22:41:43,761 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:41:43,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-25 22:41:43,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:41:43,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-25 22:41:43,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=1290, Unknown=15, NotChecked=0, Total=1806 [2022-11-25 22:41:43,765 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 43 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:49,725 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_28~0#1|))) (let ((.cse8 ((_ zero_extend 24) ((_ extract 7 0) .cse1))) (.cse6 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_2~0#1|)) (.cse16 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse15 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 (_ bv254 32))))) (.cse41 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 (_ bv255 32))))) (.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse6))))) (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| |c_ULTIMATE.start_main_~var_92~0#1|)))))) (.cse14 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse5)) .cse6)))) (.cse3 (forall ((|v_ULTIMATE.start_main_~var_95_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_95_arg_0~0#1_13|) .cse41))))) (_ bv0 8)))) (.cse2 (bvshl |c_ULTIMATE.start_main_~var_91~0#1| (_ bv8 32))) (.cse11 (forall ((|ULTIMATE.start_main_~state_89~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_623_arg_0~0#1_17| (_ BitVec 8))) (let ((.cse40 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~state_89~0#1|)))) .cse16))))) (or (= ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_623_arg_0~0#1_17|) .cse40))))))))))))))) .cse41))))) (_ bv0 8)) (not (= ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse15 .cse40))))) (_ bv0 8)))))))) (and (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_23| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_4~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (bvule (bvand |ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_23| (_ bv8 32)) .cse1) |ULTIMATE.start_main_~mask_SORT_4~0#1|)))))))))))))))) .cse0)))) .cse2)) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_23| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_4~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse4 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_23| (_ bv8 32)) .cse1) |ULTIMATE.start_main_~mask_SORT_4~0#1|))))))))) (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32))))))))) .cse4)))) |ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_101~0#1|))))) .cse4)))) .cse2) |ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse5 (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32))))))))) .cse6)))))))))) .cse6))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32))) (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse7 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse7))))))))))))))) |c_ULTIMATE.start_main_~var_101~0#1|))))))))) .cse2)) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (= (bvadd |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (_ bv1 32)) (_ bv0 32)) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (let ((.cse10 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse10))))) .cse10))))) (or (not (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse9 (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ bv8 32)))) |c_ULTIMATE.start_main_~var_93~0#1|)) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) .cse9))))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))))) .cse11) (or (forall ((|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse12 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand .cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 .cse13)))))))))))))) .cse2)) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_18| (_ BitVec 32))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_18| (_ bv8 32)) .cse1))))))) .cse6)))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)))))) .cse6))))) .cse6))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))) (or (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse14)) .cse6))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|) .cse3) (forall ((|v_ULTIMATE.start_main_~var_95_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse15 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_95_arg_0~0#1_13|)))) .cse16)) (_ bv0 8))) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_28| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (let ((.cse18 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (let ((.cse17 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse18 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse18 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_28| (_ bv8 32)) .cse1) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)))))))))))))))) (or (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse17)) .cse18))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|) (not (bvule (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ bv8 32)) .cse17) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|)))))) .cse11) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse19 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse19))))))))))))))) .cse19)))) .cse2)) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (or (forall ((|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse20 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 .cse13))))))))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_101~0#1|))))))))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse21 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand .cse21 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse13))) (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)))))))))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)))))))))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))) (let ((.cse22 (exists ((|v_ULTIMATE.start_main_~state_89~0#1_21| (_ BitVec 8)) (|ULTIMATE.start_main_~var_623_arg_0~0#1| (_ BitVec 8))) (= |c_ULTIMATE.start_main_~state_89~0#1| ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~var_623_arg_0~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |v_ULTIMATE.start_main_~state_89~0#1_21|))))))))))))))))))) (or (and .cse22 (exists ((v_subst_6 (_ BitVec 32)) (v_subst_5 (_ BitVec 32)) (|ULTIMATE.start_main_~var_92_arg_0~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (let ((.cse23 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (let ((.cse24 (bvand (bvor (bvshl |ULTIMATE.start_main_~var_92_arg_0~0#1| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl v_subst_6 (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse23 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv1 32) (bvand (bvor (bvshl v_subst_5 (_ bv8 32)) (_ bv0 32)) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))))))))))) (_ bv1 32)))))) .cse23)))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))) (and (= |c_ULTIMATE.start_main_~state_28~0#1| ((_ extract 7 0) (bvand .cse23 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse24 (_ bv1 32))))))))) (bvule .cse24 |c_ULTIMATE.start_main_~var_93~0#1|)))))) (and (exists ((v_subst_5 (_ BitVec 32)) (|ULTIMATE.start_main_~var_92_arg_0~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (let ((.cse26 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (let ((.cse25 (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse26 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv1 32) (bvand (bvor (bvshl v_subst_5 (_ bv8 32)) (_ bv0 32)) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))))))))))) .cse26))) (bvshl |ULTIMATE.start_main_~var_92_arg_0~0#1| (_ bv8 32))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))) (and (bvule .cse25 |c_ULTIMATE.start_main_~var_93~0#1|) (= |c_ULTIMATE.start_main_~state_28~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv1 32) .cse25))))) .cse26))))))) .cse22))) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_23| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_4~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse27 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse27 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse27 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_23| (_ bv8 32)) .cse1) |ULTIMATE.start_main_~mask_SORT_4~0#1|))))))))))))))))))))) .cse27)))) .cse2) |ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_4~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse28 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand .cse28 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse28)))) |ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_101~0#1|))))) .cse28)))) |ULTIMATE.start_main_~mask_SORT_4~0#1|)))))))))) .cse2) |ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_18| (_ BitVec 32))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_18| (_ bv8 32)) .cse1))))))) .cse6)))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)))))) .cse6)))))))))) .cse6))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ BitVec 32))) (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_16| (_ bv8 32)) .cse14) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)))))) .cse6))))) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= (_ bv1 8) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|) (or .cse11 (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_27| (_ BitVec 32))) (let ((.cse30 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (let ((.cse29 (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse30 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_27| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse30))))))))))))) (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ bv8 32))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))) (or (not (bvule .cse29 |c_ULTIMATE.start_main_~var_93~0#1|)) (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| .cse29))))) .cse30))) .cse2)) |c_ULTIMATE.start_main_~var_93~0#1|)))))) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_28| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_27| (_ BitVec 32))) (let ((.cse32 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (let ((.cse31 (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_28| (_ bv8 32)) .cse1) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))))))))) (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_27| (_ bv8 32))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))))))))) (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ bv8 32)))))) (or (not (bvule .cse31 |c_ULTIMATE.start_main_~var_93~0#1|)) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| .cse31))))) .cse32))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))))) .cse11) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_4~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse33 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand .cse33 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_17| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse33)))) |ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_101~0#1|))))) .cse33))))))))) .cse2) |ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))) (or .cse3 (forall ((|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse34 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand .cse34 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse34))))) .cse34))))))))) .cse2) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|))) (or (forall ((|ULTIMATE.start_main_~mask_SORT_4~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (bvule (bvand (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse35 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (bvand .cse35 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse35))))) .cse35))))))))) .cse2) |ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_93~0#1|)) .cse3) (= |c_ULTIMATE.start_main_~var_93~0#1| (_ bv80 32)) (= |c_ULTIMATE.start_main_~var_91~0#1| (_ bv0 32)) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (let ((.cse37 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (let ((.cse36 (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 .cse37))))) .cse37))) (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ bv8 32)))))) (or (not (bvule .cse36 |c_ULTIMATE.start_main_~var_93~0#1|)) (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse37 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| .cse36)))))))) .cse2)) |c_ULTIMATE.start_main_~var_93~0#1|))))) .cse11) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_18| (_ BitVec 32))) (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_18| (_ bv8 32)) .cse1))))))) .cse6))))) .cse6))))) .cse6))) .cse2)) |c_ULTIMATE.start_main_~var_93~0#1|))) (or (forall ((|v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_28| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_2~0#1| (_ BitVec 8))) (let ((.cse39 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_2~0#1|))) (let ((.cse38 (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_26| (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse39 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse39 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| (bvand (bvor (bvshl |v_ULTIMATE.start_main_~var_92_arg_0~0#1_28| (_ bv8 32)) .cse1) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))))))))))))))) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|))) (or (bvule (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd |c_ULTIMATE.start_main_~var_101~0#1| .cse38))))) .cse39))) .cse2)) |c_ULTIMATE.start_main_~var_93~0#1|) (not (bvule .cse38 |c_ULTIMATE.start_main_~var_93~0#1|)))))) .cse11)))))) is different from false [2022-11-25 22:41:59,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:02,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:05,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:08,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:10,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:13,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:15,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:17,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-11-25 22:42:20,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:22,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-11-25 22:42:24,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:26,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-11-25 22:42:28,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:31,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:33,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:35,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:42:55,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:55,548 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-11-25 22:42:55,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 22:42:55,550 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 22:42:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:55,550 INFO L225 Difference]: With dead ends: 31 [2022-11-25 22:42:55,550 INFO L226 Difference]: Without dead ends: 29 [2022-11-25 22:42:55,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 184.6s TimeCoverageRelationStatistics Valid=835, Invalid=2229, Unknown=20, NotChecked=108, Total=3192 [2022-11-25 22:42:55,553 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 24 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 44.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:55,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 57 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 77 Invalid, 16 Unknown, 1 Unchecked, 44.4s Time] [2022-11-25 22:42:55,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-25 22:42:55,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-11-25 22:42:55,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:42:55,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-25 22:42:55,570 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-11-25 22:42:55,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:55,571 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-25 22:42:55,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:42:55,571 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-25 22:42:55,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 22:42:55,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:55,572 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2022-11-25 22:42:55,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:55,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:55,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:56,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:42:56,174 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:42:56,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:56,174 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 3 times [2022-11-25 22:42:56,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:56,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693524158] [2022-11-25 22:42:56,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:42:56,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:56,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:56,182 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:56,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-25 22:43:00,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-25 22:43:00,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:43:00,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 10796 conjuncts, 136 conjunts are in the unsatisfiable core [2022-11-25 22:43:00,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:43:11,356 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:43:11,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:43:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:43:55,976 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:43:55,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693524158] [2022-11-25 22:43:55,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693524158] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:43:55,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [82444941] [2022-11-25 22:43:55,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:43:55,977 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:43:55,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:43:55,978 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:43:55,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-25 22:47:49,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-25 22:47:49,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:47:50,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 10796 conjuncts, 121 conjunts are in the unsatisfiable core [2022-11-25 22:47:50,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:47:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:47:58,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:48:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:48:48,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [82444941] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:48:48,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145817722] [2022-11-25 22:48:48,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:48:48,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:48:48,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:48:48,297 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:48:48,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df6bc1fd-b2bc-48e1-86e2-687318323749/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 22:48:53,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-25 22:48:53,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:48:53,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 10796 conjuncts, 331 conjunts are in the unsatisfiable core [2022-11-25 22:48:53,831 INFO L286 TraceCheckSpWp]: Computing forward predicates...