./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/interleave_bits.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:47:02,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:47:02,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:47:02,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:47:02,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:47:02,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:47:02,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:47:02,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:47:02,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:47:02,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:47:02,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:47:02,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:47:02,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:47:02,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:47:02,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:47:02,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:47:02,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:47:02,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:47:02,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:47:02,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:47:02,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:47:02,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:47:02,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:47:02,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:47:02,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:47:02,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:47:02,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:47:02,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:47:02,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:47:02,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:47:02,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:47:02,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:47:02,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:47:02,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:47:02,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:47:02,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:47:02,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:47:02,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:47:02,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:47:02,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:47:02,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:47:02,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:47:02,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:47:02,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:47:02,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:47:02,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:47:02,518 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:47:02,519 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:47:02,519 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:47:02,519 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:47:02,519 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:47:02,520 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:47:02,521 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:47:02,521 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:47:02,521 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:47:02,522 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:47:02,522 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:47:02,522 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:47:02,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:47:02,523 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:47:02,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:47:02,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:47:02,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:47:02,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:47:02,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:47:02,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:47:02,525 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:47:02,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:47:02,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:47:02,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:47:02,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:47:02,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:47:02,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:47:02,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:02,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:47:02,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:47:02,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:47:02,542 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:47:02,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:47:02,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:47:02,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:47:02,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:47:02,544 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb [2021-11-19 14:47:02,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:47:02,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:47:02,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:47:02,844 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:47:02,845 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:47:02,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/bitvector/interleave_bits.i [2021-11-19 14:47:02,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data/f8430dcbf/b47f22da258c4dc5a1d0ad1946d0fc05/FLAGabd8e39b1 [2021-11-19 14:47:03,388 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:47:03,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/sv-benchmarks/c/bitvector/interleave_bits.i [2021-11-19 14:47:03,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data/f8430dcbf/b47f22da258c4dc5a1d0ad1946d0fc05/FLAGabd8e39b1 [2021-11-19 14:47:03,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data/f8430dcbf/b47f22da258c4dc5a1d0ad1946d0fc05 [2021-11-19 14:47:03,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:47:03,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:47:03,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:03,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:47:03,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:47:03,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:03" (1/1) ... [2021-11-19 14:47:03,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a91735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:03, skipping insertion in model container [2021-11-19 14:47:03,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:03" (1/1) ... [2021-11-19 14:47:03,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:47:03,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:47:04,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2021-11-19 14:47:04,025 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:04,034 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:47:04,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2021-11-19 14:47:04,055 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:04,069 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:47:04,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04 WrapperNode [2021-11-19 14:47:04,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:04,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:47:04,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:47:04,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:47:04,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,106 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2021-11-19 14:47:04,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:47:04,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:47:04,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:47:04,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:47:04,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:47:04,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:47:04,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:47:04,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:47:04,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (1/1) ... [2021-11-19 14:47:04,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:04,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:04,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:47:04,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:47:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:47:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:47:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:47:04,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:47:04,306 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:47:04,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:47:04,444 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:47:04,464 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:47:04,468 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:47:04,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:04 BoogieIcfgContainer [2021-11-19 14:47:04,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:47:04,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:47:04,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:47:04,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:47:04,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:47:03" (1/3) ... [2021-11-19 14:47:04,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26268f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:47:04, skipping insertion in model container [2021-11-19 14:47:04,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:04" (2/3) ... [2021-11-19 14:47:04,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26268f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:47:04, skipping insertion in model container [2021-11-19 14:47:04,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:04" (3/3) ... [2021-11-19 14:47:04,485 INFO L111 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2021-11-19 14:47:04,491 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:47:04,491 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:47:04,563 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:47:04,572 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:47:04,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:47:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:04,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-19 14:47:04,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:04,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-19 14:47:04,608 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:04,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:04,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1850503, now seen corresponding path program 1 times [2021-11-19 14:47:04,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:04,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172742351] [2021-11-19 14:47:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:04,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:04,858 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:47:04,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172742351] [2021-11-19 14:47:04,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172742351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:47:04,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:47:04,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:47:04,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184029798] [2021-11-19 14:47:04,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:47:04,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:47:04,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:47:04,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:47:04,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:47:04,895 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:04,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:04,959 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-11-19 14:47:04,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:47:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-19 14:47:04,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:04,970 INFO L225 Difference]: With dead ends: 13 [2021-11-19 14:47:04,971 INFO L226 Difference]: Without dead ends: 6 [2021-11-19 14:47:04,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:47:04,976 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:04,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:47:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-11-19 14:47:05,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-11-19 14:47:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:05,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-19 14:47:05,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-11-19 14:47:05,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:05,009 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-11-19 14:47:05,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:05,010 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-19 14:47:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:47:05,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:05,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:47:05,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:47:05,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:05,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash 56695734, now seen corresponding path program 1 times [2021-11-19 14:47:05,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:05,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441079904] [2021-11-19 14:47:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:05,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:05,105 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:47:05,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441079904] [2021-11-19 14:47:05,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441079904] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:05,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780579353] [2021-11-19 14:47:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:05,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:05,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:05,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:05,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 14:47:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:05,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:47:05,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:05,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:05,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780579353] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:05,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [598719819] [2021-11-19 14:47:05,318 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-19 14:47:05,318 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:47:05,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:47:05,329 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:47:05,330 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:47:05,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:47:05,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-19 14:47:05,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:47:05,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-19 14:47:05,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:05,580 INFO L180 QuantifierPusher]: treesize reduction 12, result has 66.7 percent of original size [2021-11-19 14:47:05,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 14:47:05,590 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:47:05,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:47:05,768 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:47:05,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-19 14:47:05,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240043362] [2021-11-19 14:47:05,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:47:05,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:47:05,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:47:05,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:47:05,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:47:05,775 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:05,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:05,831 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-11-19 14:47:05,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:47:05,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-19 14:47:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:05,832 INFO L225 Difference]: With dead ends: 12 [2021-11-19 14:47:05,833 INFO L226 Difference]: Without dead ends: 9 [2021-11-19 14:47:05,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:47:05,835 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:05,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:47:05,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-19 14:47:05,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-19 14:47:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-19 14:47:05,839 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-11-19 14:47:05,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:05,839 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-19 14:47:05,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-19 14:47:05,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:47:05,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:05,843 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2021-11-19 14:47:05,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:06,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:06,044 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:06,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:06,044 INFO L85 PathProgramCache]: Analyzing trace with hash 435294279, now seen corresponding path program 2 times [2021-11-19 14:47:06,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:06,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059305707] [2021-11-19 14:47:06,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:06,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:06,141 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:47:06,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059305707] [2021-11-19 14:47:06,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059305707] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:06,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663886510] [2021-11-19 14:47:06,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:47:06,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:06,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:06,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:06,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 14:47:06,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-19 14:47:06,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:06,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:47:06,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:06,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:06,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:06,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663886510] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:06,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1893585368] [2021-11-19 14:47:06,459 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-19 14:47:06,459 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:47:06,460 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:47:06,460 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:47:06,460 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:47:06,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:47:06,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:47:06,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:47:06,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-19 14:47:06,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:06,580 INFO L180 QuantifierPusher]: treesize reduction 12, result has 66.7 percent of original size [2021-11-19 14:47:06,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 14:47:06,587 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:47:06,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:47:06,737 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:47:06,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-19 14:47:06,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401544294] [2021-11-19 14:47:06,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:47:06,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 14:47:06,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:47:06,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 14:47:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:47:06,740 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:07,046 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-11-19 14:47:07,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:47:07,048 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-19 14:47:07,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:07,049 INFO L225 Difference]: With dead ends: 18 [2021-11-19 14:47:07,049 INFO L226 Difference]: Without dead ends: 15 [2021-11-19 14:47:07,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:47:07,051 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:07,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:47:07,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-19 14:47:07,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-19 14:47:07,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:07,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-19 14:47:07,060 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-11-19 14:47:07,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:07,061 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-19 14:47:07,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-19 14:47:07,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 14:47:07,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:07,064 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2021-11-19 14:47:07,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:07,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-19 14:47:07,265 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:07,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:07,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2046822887, now seen corresponding path program 3 times [2021-11-19 14:47:07,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:07,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335669834] [2021-11-19 14:47:07,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:07,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:07,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:47:07,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335669834] [2021-11-19 14:47:07,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335669834] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:07,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749249898] [2021-11-19 14:47:07,488 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 14:47:07,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:07,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:07,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:07,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 14:47:07,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 14:47:07,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:07,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:47:07,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:07,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:08,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749249898] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:08,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1769948075] [2021-11-19 14:47:08,075 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-19 14:47:08,075 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:47:08,075 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:47:08,075 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:47:08,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:47:08,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:47:08,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-19 14:47:08,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:47:08,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-19 14:47:08,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:47:08,144 INFO L180 QuantifierPusher]: treesize reduction 12, result has 66.7 percent of original size [2021-11-19 14:47:08,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 14:47:08,150 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:47:08,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:47:08,353 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:47:08,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2021-11-19 14:47:08,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118534880] [2021-11-19 14:47:08,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:47:08,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 14:47:08,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:47:08,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 14:47:08,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:47:08,356 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:08,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:08,950 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2021-11-19 14:47:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 14:47:08,951 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-19 14:47:08,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:08,952 INFO L225 Difference]: With dead ends: 24 [2021-11-19 14:47:08,952 INFO L226 Difference]: Without dead ends: 21 [2021-11-19 14:47:08,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2021-11-19 14:47:08,954 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:08,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:47:08,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-19 14:47:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-19 14:47:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:08,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-19 14:47:08,960 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2021-11-19 14:47:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:08,960 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-19 14:47:08,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-19 14:47:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 14:47:08,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:08,962 INFO L514 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1] [2021-11-19 14:47:08,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:09,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:09,172 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:09,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash -606844025, now seen corresponding path program 4 times [2021-11-19 14:47:09,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:09,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395829828] [2021-11-19 14:47:09,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:09,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:47:09,202 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:47:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:47:09,249 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:47:09,249 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:47:09,250 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:47:09,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-19 14:47:09,264 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1] [2021-11-19 14:47:09,268 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:47:09,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:47:09 BoogieIcfgContainer [2021-11-19 14:47:09,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:47:09,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:47:09,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:47:09,308 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:47:09,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:04" (3/4) ... [2021-11-19 14:47:09,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:47:09,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:47:09,312 INFO L158 Benchmark]: Toolchain (without parser) took 5528.09ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 54.6MB in the beginning and 73.3MB in the end (delta: -18.7MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-19 14:47:09,312 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:47:09,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.76ms. Allocated memory is still 98.6MB. Free memory was 54.4MB in the beginning and 71.6MB in the end (delta: -17.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:47:09,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.39ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:47:09,314 INFO L158 Benchmark]: Boogie Preprocessor took 21.26ms. Allocated memory is still 98.6MB. Free memory was 69.9MB in the beginning and 68.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:47:09,314 INFO L158 Benchmark]: RCFGBuilder took 344.13ms. Allocated memory is still 98.6MB. Free memory was 68.7MB in the beginning and 59.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:47:09,314 INFO L158 Benchmark]: TraceAbstraction took 4831.55ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 59.1MB in the beginning and 74.4MB in the end (delta: -15.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-11-19 14:47:09,315 INFO L158 Benchmark]: Witness Printer took 3.25ms. Allocated memory is still 125.8MB. Free memory was 74.4MB in the beginning and 73.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:47:09,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.76ms. Allocated memory is still 98.6MB. Free memory was 54.4MB in the beginning and 71.6MB in the end (delta: -17.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.39ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.26ms. Allocated memory is still 98.6MB. Free memory was 69.9MB in the beginning and 68.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 344.13ms. Allocated memory is still 98.6MB. Free memory was 68.7MB in the beginning and 59.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4831.55ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 59.1MB in the beginning and 74.4MB in the end (delta: -15.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Witness Printer took 3.25ms. Allocated memory is still 125.8MB. Free memory was 74.4MB in the beginning and 73.3MB 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: 25]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 64, overapproximation of bitwiseAnd at line 55. Possible FailurePath: [L42] unsigned short x = __VERIFIER_nondet_ushort(); [L43] unsigned short y = __VERIFIER_nondet_ushort(); [L44] unsigned int xx; [L45] unsigned int yy; [L46] unsigned int zz; [L47] unsigned int z = 0; [L48] unsigned int i = 0; VAL [i=0, z=0] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=1] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=2] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=3] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=5] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=6] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=7] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=8] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=9] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=10] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=11] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=12] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=13] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=14] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=15] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=16] [L49] COND FALSE !(i < sizeof(x) * 8) [L53] xx = x [L54] yy = y [L55] xx = (xx | (xx << 8u)) & 16711935U [L56] xx = (xx | (xx << 4u)) & 252645135U [L57] xx = (xx | (xx << 2u)) & 858993459U [L58] xx = (xx | (xx << 1u)) & 1431655765U [L59] yy = (yy | (yy << 8u)) & 16711935U [L60] yy = (yy | (yy << 4u)) & 252645135U [L61] yy = (yy | (yy << 2u)) & 858993459U [L62] yy = (yy | (yy << 1u)) & 1431655765U [L64] zz = xx | (yy << 1U) [L66] CALL __VERIFIER_assert(z == zz) [L24] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L25] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 9 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=4, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 379 SizeOfPredicates, 3 NumberOfNonLiveVariables, 144 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 0/198 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 14:47:09,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:47:11,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:47:11,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:47:11,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:47:11,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:47:11,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:47:11,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:47:11,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:47:11,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:47:11,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:47:11,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:47:11,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:47:11,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:47:11,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:47:11,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:47:11,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:47:12,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:47:12,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:47:12,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:47:12,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:47:12,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:47:12,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:47:12,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:47:12,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:47:12,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:47:12,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:47:12,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:47:12,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:47:12,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:47:12,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:47:12,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:47:12,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:47:12,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:47:12,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:47:12,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:47:12,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:47:12,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:47:12,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:47:12,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:47:12,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:47:12,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:47:12,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:47:12,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:47:12,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:47:12,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:47:12,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:47:12,090 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:47:12,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:47:12,091 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:47:12,091 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:47:12,091 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:47:12,091 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:47:12,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:47:12,094 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:47:12,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:47:12,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:47:12,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:47:12,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:47:12,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:47:12,095 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:47:12,095 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:47:12,095 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:47:12,095 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:47:12,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:47:12,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:47:12,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:47:12,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:47:12,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:47:12,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:47:12,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:12,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:47:12,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:47:12,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:47:12,097 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:47:12,098 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:47:12,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:47:12,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:47:12,099 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:47:12,099 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_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb [2021-11-19 14:47:12,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:47:12,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:47:12,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:47:12,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:47:12,507 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:47:12,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/bitvector/interleave_bits.i [2021-11-19 14:47:12,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data/04937d3f8/048e66642f244aedad654930025dfcc7/FLAGef512f101 [2021-11-19 14:47:13,179 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:47:13,180 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/sv-benchmarks/c/bitvector/interleave_bits.i [2021-11-19 14:47:13,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data/04937d3f8/048e66642f244aedad654930025dfcc7/FLAGef512f101 [2021-11-19 14:47:13,530 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/data/04937d3f8/048e66642f244aedad654930025dfcc7 [2021-11-19 14:47:13,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:47:13,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:47:13,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:13,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:47:13,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:47:13,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488fc05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13, skipping insertion in model container [2021-11-19 14:47:13,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:47:13,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:47:13,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2021-11-19 14:47:13,725 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:13,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:47:13,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2021-11-19 14:47:13,790 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:13,809 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:47:13,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13 WrapperNode [2021-11-19 14:47:13,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:13,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:47:13,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:47:13,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:47:13,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,870 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2021-11-19 14:47:13,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:47:13,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:47:13,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:47:13,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:47:13,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:47:13,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:47:13,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:47:13,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:47:13,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2021-11-19 14:47:13,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:13,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:13,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:47:13,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:47:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:47:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:47:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:47:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:47:14,093 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:47:14,094 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:47:14,276 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:47:14,281 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:47:14,282 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:47:14,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:14 BoogieIcfgContainer [2021-11-19 14:47:14,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:47:14,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:47:14,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:47:14,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:47:14,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:47:13" (1/3) ... [2021-11-19 14:47:14,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6567abd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:47:14, skipping insertion in model container [2021-11-19 14:47:14,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (2/3) ... [2021-11-19 14:47:14,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6567abd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:47:14, skipping insertion in model container [2021-11-19 14:47:14,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:14" (3/3) ... [2021-11-19 14:47:14,306 INFO L111 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2021-11-19 14:47:14,311 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:47:14,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:47:14,374 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:47:14,381 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:47:14,381 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:47:14,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:14,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 14:47:14,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:14,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 14:47:14,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:14,405 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-19 14:47:14,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:47:14,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011130017] [2021-11-19 14:47:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:14,417 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:47:14,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:47:14,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:47:14,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:47:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:14,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:47:14,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:14,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:14,637 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:47:14,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011130017] [2021-11-19 14:47:14,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011130017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:47:14,639 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:47:14,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:47:14,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626775429] [2021-11-19 14:47:14,642 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:47:14,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:47:14,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:47:14,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:47:14,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:47:14,684 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 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:14,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:14,715 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-11-19 14:47:14,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:47:14,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Word has length 6 [2021-11-19 14:47:14,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:14,725 INFO L225 Difference]: With dead ends: 21 [2021-11-19 14:47:14,726 INFO L226 Difference]: Without dead ends: 9 [2021-11-19 14:47:14,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:47:14,736 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:14,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:47:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-19 14:47:14,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-19 14:47:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-19 14:47:14,779 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2021-11-19 14:47:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:14,780 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-19 14:47:14,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-19 14:47:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:47:14,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:14,781 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:14,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:14,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:47:14,993 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:14,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:14,994 INFO L85 PathProgramCache]: Analyzing trace with hash 292915403, now seen corresponding path program 1 times [2021-11-19 14:47:14,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:47:14,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731218436] [2021-11-19 14:47:14,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:14,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:47:14,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:47:14,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:47:15,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:47:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:15,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:47:15,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:15,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:15,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:15,145 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:47:15,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731218436] [2021-11-19 14:47:15,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731218436] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:15,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [430965631] [2021-11-19 14:47:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:15,146 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:47:15,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:47:15,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:47:15,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-19 14:47:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:15,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:47:15,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:15,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:15,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:15,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [430965631] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:15,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345003164] [2021-11-19 14:47:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:15,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:15,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:15,306 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:15,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 14:47:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:15,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:47:15,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:15,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:15,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345003164] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:15,468 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:47:15,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2021-11-19 14:47:15,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024838951] [2021-11-19 14:47:15,470 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:47:15,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:47:15,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:47:15,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:47:15,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:47:15,477 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:15,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:15,623 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-11-19 14:47:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:47:15,623 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 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) Word has length 8 [2021-11-19 14:47:15,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:15,624 INFO L225 Difference]: With dead ends: 17 [2021-11-19 14:47:15,624 INFO L226 Difference]: Without dead ends: 13 [2021-11-19 14:47:15,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:47:15,626 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:15,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:47:15,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-19 14:47:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-19 14:47:15,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:15,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-19 14:47:15,632 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2021-11-19 14:47:15,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:15,633 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-19 14:47:15,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:15,633 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-19 14:47:15,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 14:47:15,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:15,634 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:15,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:15,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-11-19 14:47:16,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:16,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:47:16,235 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:16,236 INFO L85 PathProgramCache]: Analyzing trace with hash -967103989, now seen corresponding path program 2 times [2021-11-19 14:47:16,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:47:16,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831042863] [2021-11-19 14:47:16,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:47:16,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:47:16,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:47:16,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:47:16,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:47:16,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:47:16,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:16,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:47:16,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:16,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:16,694 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:47:16,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831042863] [2021-11-19 14:47:16,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831042863] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:16,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1733821915] [2021-11-19 14:47:16,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:47:16,695 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:47:16,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:47:16,704 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:47:16,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-19 14:47:16,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:47:16,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:16,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:47:16,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:16,863 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:16,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:16,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1733821915] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:16,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058113434] [2021-11-19 14:47:16,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:47:16,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:16,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:16,904 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:16,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 14:47:16,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:47:16,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:16,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:47:16,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:17,002 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:17,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:17,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058113434] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:17,324 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:47:17,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 22 [2021-11-19 14:47:17,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612215478] [2021-11-19 14:47:17,325 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:47:17,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-19 14:47:17,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:47:17,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-19 14:47:17,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:47:17,332 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 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) [2021-11-19 14:47:17,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:17,789 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-11-19 14:47:17,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 14:47:17,789 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 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) Word has length 12 [2021-11-19 14:47:17,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:17,790 INFO L225 Difference]: With dead ends: 25 [2021-11-19 14:47:17,790 INFO L226 Difference]: Without dead ends: 21 [2021-11-19 14:47:17,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=525, Unknown=0, NotChecked=0, Total=812 [2021-11-19 14:47:17,793 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 18 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:17,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 37 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:47:17,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-19 14:47:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-19 14:47:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-19 14:47:17,799 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2021-11-19 14:47:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:17,799 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-19 14:47:17,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 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) [2021-11-19 14:47:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-19 14:47:17,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 14:47:17,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:17,801 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:17,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:18,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:18,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:18,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:47:18,420 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:18,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:18,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2078182539, now seen corresponding path program 3 times [2021-11-19 14:47:18,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:47:18,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200764566] [2021-11-19 14:47:18,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:47:18,422 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:47:18,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:47:18,423 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:47:18,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:47:18,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-19 14:47:18,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:18,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:47:18,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:18,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:19,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:47:19,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200764566] [2021-11-19 14:47:19,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200764566] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:19,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [350344648] [2021-11-19 14:47:19,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:47:19,479 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:47:19,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:47:19,481 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:47:19,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-19 14:47:19,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-19 14:47:19,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:19,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:47:19,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:19,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:19,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [350344648] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:19,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987738287] [2021-11-19 14:47:19,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:47:19,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:19,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:19,847 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:19,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 14:47:19,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-19 14:47:19,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:19,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:47:19,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:20,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:20,147 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:20,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987738287] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:47:20,148 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:47:20,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17, 17, 17, 17] total 32 [2021-11-19 14:47:20,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592589520] [2021-11-19 14:47:20,154 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:47:20,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-19 14:47:20,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:47:20,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-19 14:47:20,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2021-11-19 14:47:20,158 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 32 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:21,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:21,934 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2021-11-19 14:47:21,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-19 14:47:21,936 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 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 20 [2021-11-19 14:47:21,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:21,938 INFO L225 Difference]: With dead ends: 41 [2021-11-19 14:47:21,938 INFO L226 Difference]: Without dead ends: 37 [2021-11-19 14:47:21,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=622, Invalid=1540, Unknown=0, NotChecked=0, Total=2162 [2021-11-19 14:47:21,940 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 55 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:21,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 42 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:47:21,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-19 14:47:21,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-19 14:47:21,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:21,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2021-11-19 14:47:21,950 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 20 [2021-11-19 14:47:21,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:21,950 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2021-11-19 14:47:21,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:47:21,951 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-11-19 14:47:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-19 14:47:21,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:21,952 INFO L514 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:21,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2021-11-19 14:47:22,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-19 14:47:22,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:22,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:47:22,555 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:22,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:22,555 INFO L85 PathProgramCache]: Analyzing trace with hash 26919211, now seen corresponding path program 4 times [2021-11-19 14:47:22,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:47:22,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780211110] [2021-11-19 14:47:22,556 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 14:47:22,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:47:22,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:47:22,557 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:47:22,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:47:22,697 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 14:47:22,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:47:22,705 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-19 14:47:22,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:47:24,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:14,246 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1| (_ BitVec 16)) (|ULTIMATE.start_main_~y~0#1| (_ BitVec 16))) (let ((.cse0 ((_ zero_extend 16) |ULTIMATE.start_main_~x~0#1|)) (.cse1 ((_ zero_extend 16) |ULTIMATE.start_main_~y~0#1|))) (= (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (_ bv0 32) (bvor (bvshl (bvand .cse0 (_ bv1 32)) (_ bv0 32)) (bvshl (bvand .cse1 (_ bv1 32)) (_ bv1 32)))) (bvor (bvshl (bvand .cse0 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse1 (_ bv2 32)) (_ bv2 32)))) (bvor (bvshl (bvand .cse0 (_ bv4 32)) (_ bv2 32)) (bvshl (bvand .cse1 (_ bv4 32)) (_ bv3 32)))) (bvor (bvshl (bvand .cse0 (_ bv8 32)) (_ bv3 32)) (bvshl (bvand .cse1 (_ bv8 32)) (_ bv4 32)))) (bvor (bvshl (bvand .cse0 (_ bv16 32)) (_ bv4 32)) (bvshl (bvand .cse1 (_ bv16 32)) (_ bv5 32)))) (bvor (bvshl (bvand .cse0 (_ bv32 32)) (_ bv5 32)) (bvshl (bvand .cse1 (_ bv32 32)) (_ bv6 32)))) (bvor (bvshl (bvand .cse0 (_ bv64 32)) (_ bv6 32)) (bvshl (bvand .cse1 (_ bv64 32)) (_ bv7 32)))) (bvor (bvshl (bvand .cse0 (_ bv128 32)) (_ bv7 32)) (bvshl (bvand .cse1 (_ bv128 32)) (_ bv8 32)))) (bvor (bvshl (bvand .cse0 (_ bv256 32)) (_ bv8 32)) (bvshl (bvand .cse1 (_ bv256 32)) (_ bv9 32)))) (bvor (bvshl (bvand .cse0 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse1 (_ bv512 32)) (_ bv10 32)))) (bvor (bvshl (bvand .cse0 (_ bv1024 32)) (_ bv10 32)) (bvshl (bvand .cse1 (_ bv1024 32)) (_ bv11 32)))) (bvor (bvshl (bvand .cse0 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse1 (_ bv2048 32)) (_ bv12 32)))) (bvor (bvshl (bvand .cse0 (_ bv4096 32)) (_ bv12 32)) (bvshl (bvand .cse1 (_ bv4096 32)) (_ bv13 32)))) (bvor (bvshl (bvand .cse0 (_ bv8192 32)) (_ bv13 32)) (bvshl (bvand .cse1 (_ bv8192 32)) (_ bv14 32)))) (bvor (bvshl (bvand .cse0 (_ bv16384 32)) (_ bv14 32)) (bvshl (bvand .cse1 (_ bv16384 32)) (_ bv15 32)))) (bvor (bvshl (bvand .cse0 (_ bv32768 32)) (_ bv15 32)) (bvshl (bvand .cse1 (_ bv32768 32)) (_ bv16 32)))) (let ((.cse31 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv15 32)))) (bvor (let ((.cse29 (bvadd (_ bv14 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse27 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv13 32)))) (bvor (let ((.cse25 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv12 32)))) (bvor (let ((.cse23 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv11 32)))) (bvor (let ((.cse21 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv10 32)))) (bvor (let ((.cse19 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv9 32)))) (bvor (let ((.cse17 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv8 32)))) (bvor (let ((.cse15 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv7 32)))) (bvor (let ((.cse13 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv6 32)))) (bvor (let ((.cse11 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv5 32)))) (bvor (let ((.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse7 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv3 32)))) (bvor (let ((.cse5 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv2 32)))) (bvor (let ((.cse3 (bvadd |c_ULTIMATE.start_main_~i~0#1| (_ bv1 32)))) (bvor (bvor |c_ULTIMATE.start_main_~z~0#1| (let ((.cse2 (bvshl (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (bvshl (bvand .cse0 .cse2) |c_ULTIMATE.start_main_~i~0#1|) (bvshl (bvand .cse1 .cse2) .cse3)))) (let ((.cse4 (bvshl (_ bv1 32) .cse3))) (bvor (bvshl (bvand .cse0 .cse4) .cse3) (bvshl (bvand .cse1 .cse4) .cse5))))) (let ((.cse6 (bvshl (_ bv1 32) .cse5))) (bvor (bvshl (bvand .cse0 .cse6) .cse5) (bvshl (bvand .cse1 .cse6) .cse7))))) (let ((.cse8 (bvshl (_ bv1 32) .cse7))) (bvor (bvshl (bvand .cse0 .cse8) .cse7) (bvshl (bvand .cse1 .cse8) .cse9))))) (let ((.cse10 (bvshl (_ bv1 32) .cse9))) (bvor (bvshl (bvand .cse0 .cse10) .cse9) (bvshl (bvand .cse1 .cse10) .cse11))))) (let ((.cse12 (bvshl (_ bv1 32) .cse11))) (bvor (bvshl (bvand .cse0 .cse12) .cse11) (bvshl (bvand .cse1 .cse12) .cse13))))) (let ((.cse14 (bvshl (_ bv1 32) .cse13))) (bvor (bvshl (bvand .cse0 .cse14) .cse13) (bvshl (bvand .cse1 .cse14) .cse15))))) (let ((.cse16 (bvshl (_ bv1 32) .cse15))) (bvor (bvshl (bvand .cse0 .cse16) .cse15) (bvshl (bvand .cse1 .cse16) .cse17))))) (let ((.cse18 (bvshl (_ bv1 32) .cse17))) (bvor (bvshl (bvand .cse0 .cse18) .cse17) (bvshl (bvand .cse1 .cse18) .cse19))))) (let ((.cse20 (bvshl (_ bv1 32) .cse19))) (bvor (bvshl (bvand .cse0 .cse20) .cse19) (bvshl (bvand .cse1 .cse20) .cse21))))) (let ((.cse22 (bvshl (_ bv1 32) .cse21))) (bvor (bvshl (bvand .cse0 .cse22) .cse21) (bvshl (bvand .cse1 .cse22) .cse23))))) (let ((.cse24 (bvshl (_ bv1 32) .cse23))) (bvor (bvshl (bvand .cse0 .cse24) .cse23) (bvshl (bvand .cse1 .cse24) .cse25))))) (let ((.cse26 (bvshl (_ bv1 32) .cse25))) (bvor (bvshl (bvand .cse0 .cse26) .cse25) (bvshl (bvand .cse1 .cse26) .cse27))))) (let ((.cse28 (bvshl (_ bv1 32) .cse27))) (bvor (bvshl (bvand .cse0 .cse28) .cse27) (bvshl (bvand .cse1 .cse28) .cse29))))) (let ((.cse30 (bvshl (_ bv1 32) .cse29))) (bvor (bvshl (bvand .cse0 .cse30) .cse29) (bvshl (bvand .cse1 .cse30) .cse31))))) (let ((.cse32 (bvshl (_ bv1 32) .cse31))) (bvor (bvshl (bvand .cse0 .cse32) .cse31) (bvshl (bvand .cse1 .cse32) (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~i~0#1|))))))))) is different from false [2021-11-19 14:48:14,305 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-19 14:48:14,305 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:14,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780211110] [2021-11-19 14:48:14,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780211110] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:48:14,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1016004044] [2021-11-19 14:48:14,306 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 14:48:14,306 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:48:14,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:48:14,316 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:48:14,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-19 14:48:14,620 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 14:48:14,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:48:14,624 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-19 14:48:14,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:48:15,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2021-11-19 14:48:16,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1016004044] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:48:16,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843413802] [2021-11-19 14:48:16,619 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 14:48:16,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:16,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:16,630 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:16,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 14:48:16,730 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 14:48:16,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:48:16,736 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-19 14:48:16,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:48:18,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:49:21,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843413802] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:49:21,691 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:49:21,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20, 20, 21, 21] total 55 [2021-11-19 14:49:21,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412174680] [2021-11-19 14:49:21,700 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:49:21,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-19 14:49:21,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:21,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-19 14:49:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=895, Invalid=1970, Unknown=1, NotChecked=104, Total=2970 [2021-11-19 14:49:21,707 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 55 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:49:23,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:23,330 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2021-11-19 14:49:23,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 14:49:23,330 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-19 14:49:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:23,331 INFO L225 Difference]: With dead ends: 39 [2021-11-19 14:49:23,331 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:49:23,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 53 SyntacticMatches, 21 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 113.9s TimeCoverageRelationStatistics Valid=933, Invalid=2040, Unknown=1, NotChecked=106, Total=3080 [2021-11-19 14:49:23,334 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:23,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 172 Invalid, 0 Unknown, 34 Unchecked, 1.4s Time] [2021-11-19 14:49:23,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:49:23,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:49:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:49:23,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:49:23,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-11-19 14:49:23,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:23,336 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:49:23,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:49:23,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:49:23,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:49:23,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:49:23,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-19 14:49:23,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:23,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-19 14:49:23,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:23,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:49:25,130 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:49:25,131 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-19 14:49:25,131 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 67) no Hoare annotation was computed. [2021-11-19 14:49:25,131 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 14:49:25,131 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:49:25,131 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 14:49:25,131 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 26) no Hoare annotation was computed. [2021-11-19 14:49:25,131 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2021-11-19 14:49:25,132 INFO L861 garLoopResultBuilder]: At program point L24-2(lines 23 28) the Hoare annotation is: true [2021-11-19 14:49:25,132 INFO L854 garLoopResultBuilder]: At program point L49-2(lines 49 52) the Hoare annotation is: (let ((.cse8 ((_ zero_extend 16) |ULTIMATE.start_main_~x~0#1|)) (.cse9 ((_ zero_extend 16) |ULTIMATE.start_main_~y~0#1|))) (let ((.cse0 (bvor (_ bv0 32) (bvor (bvshl (bvand .cse8 (_ bv1 32)) (_ bv0 32)) (bvshl (bvand .cse9 (_ bv1 32)) (_ bv1 32)))))) (let ((.cse2 (bvor (bvor .cse0 (bvor (bvshl (bvand .cse8 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse9 (_ bv2 32)) (_ bv2 32)))) (bvor (bvshl (bvand .cse8 (_ bv4 32)) (_ bv2 32)) (bvshl (bvand .cse9 (_ bv4 32)) (_ bv3 32)))))) (let ((.cse10 (bvor (bvor .cse2 (bvor (bvshl (bvand .cse8 (_ bv8 32)) (_ bv3 32)) (bvshl (bvand .cse9 (_ bv8 32)) (_ bv4 32)))) (bvor (bvshl (bvand .cse8 (_ bv16 32)) (_ bv4 32)) (bvshl (bvand .cse9 (_ bv16 32)) (_ bv5 32)))))) (let ((.cse4 (bvor (bvor (bvor .cse10 (bvor (bvshl (bvand .cse8 (_ bv32 32)) (_ bv5 32)) (bvshl (bvand .cse9 (_ bv32 32)) (_ bv6 32)))) (bvor (bvshl (bvand .cse8 (_ bv64 32)) (_ bv6 32)) (bvshl (bvand .cse9 (_ bv64 32)) (_ bv7 32)))) (bvor (bvshl (bvand .cse8 (_ bv128 32)) (_ bv7 32)) (bvshl (bvand .cse9 (_ bv128 32)) (_ bv8 32)))))) (let ((.cse5 (bvor (bvor .cse4 (bvor (bvshl (bvand .cse8 (_ bv256 32)) (_ bv8 32)) (bvshl (bvand .cse9 (_ bv256 32)) (_ bv9 32)))) (bvor (bvshl (bvand .cse8 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse9 (_ bv512 32)) (_ bv10 32)))))) (let ((.cse6 (bvor (bvor .cse5 (bvor (bvshl (bvand .cse8 (_ bv1024 32)) (_ bv10 32)) (bvshl (bvand .cse9 (_ bv1024 32)) (_ bv11 32)))) (bvor (bvshl (bvand .cse8 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse9 (_ bv2048 32)) (_ bv12 32)))))) (let ((.cse13 (bvadd (_ bv4294967295 32) |ULTIMATE.start_main_~i~0#1|)) (.cse7 (bvor .cse6 (bvor (bvshl (bvand .cse8 (_ bv4096 32)) (_ bv12 32)) (bvshl (bvand .cse9 (_ bv4096 32)) (_ bv13 32)))))) (let ((.cse3 (bvor .cse7 (bvor (bvshl (bvand .cse8 (_ bv8192 32)) (_ bv13 32)) (bvshl (bvand .cse9 (_ bv8192 32)) (_ bv14 32))))) (.cse1 (let ((.cse14 (bvshl (_ bv1 32) .cse13))) (bvor (bvshl (bvand .cse8 .cse14) .cse13) (bvshl (bvand .cse9 .cse14) |ULTIMATE.start_main_~i~0#1|))))) (or (and (= |ULTIMATE.start_main_~i~0#1| (_ bv2 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor .cse0 .cse1))) (and (= |ULTIMATE.start_main_~z~0#1| .cse2) (= |ULTIMATE.start_main_~i~0#1| (_ bv3 32))) (and (= (_ bv14 32) |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~z~0#1| .cse3)) (and (= |ULTIMATE.start_main_~z~0#1| (bvor .cse4 .cse1)) (= |ULTIMATE.start_main_~i~0#1| (_ bv9 32))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv10 32)) (= |ULTIMATE.start_main_~z~0#1| .cse5)) (and (= |ULTIMATE.start_main_~z~0#1| (bvor .cse2 .cse1)) (= (_ bv4 32) |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv12 32)) (= |ULTIMATE.start_main_~z~0#1| .cse6)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~z~0#1| .cse0)) (and (= |ULTIMATE.start_main_~z~0#1| .cse7) (= |ULTIMATE.start_main_~i~0#1| (_ bv13 32))) (and (= (bvor (bvor .cse3 (bvor (bvshl (bvand .cse8 (_ bv16384 32)) (_ bv14 32)) (bvshl (bvand .cse9 (_ bv16384 32)) (_ bv15 32)))) (bvor (bvshl (bvand .cse8 (_ bv32768 32)) (_ bv15 32)) (bvshl (bvand .cse9 (_ bv32768 32)) (_ bv16 32)))) |ULTIMATE.start_main_~z~0#1|) (= (_ bv16 32) |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~z~0#1| .cse4) (= |ULTIMATE.start_main_~i~0#1| (_ bv8 32))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv15 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor .cse3 .cse1))) (and (= .cse10 |ULTIMATE.start_main_~z~0#1|) (= |ULTIMATE.start_main_~i~0#1| (_ bv5 32))) (and (= |ULTIMATE.start_main_~z~0#1| (bvor (bvor .cse10 (let ((.cse12 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv4294967294 32)))) (let ((.cse11 (bvshl (_ bv1 32) .cse12))) (bvor (bvshl (bvand .cse8 .cse11) .cse12) (bvshl (bvand .cse9 .cse11) .cse13))))) .cse1)) (= |ULTIMATE.start_main_~i~0#1| (_ bv7 32))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv6 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor .cse10 .cse1))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~z~0#1| (_ bv0 32))) (and (= (bvor .cse5 .cse1) |ULTIMATE.start_main_~z~0#1|) (= |ULTIMATE.start_main_~i~0#1| (_ bv11 32))))))))))))) [2021-11-19 14:49:25,132 INFO L858 garLoopResultBuilder]: For program point L49-3(lines 49 52) no Hoare annotation was computed. [2021-11-19 14:49:25,136 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1] [2021-11-19 14:49:25,137 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:49:25,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:49:25 BoogieIcfgContainer [2021-11-19 14:49:25,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:49:25,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:49:25,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:49:25,191 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:49:25,192 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:14" (3/4) ... [2021-11-19 14:49:25,195 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:49:25,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-19 14:49:25,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-19 14:49:25,206 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 14:49:25,206 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:49:25,269 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:49:25,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:49:25,270 INFO L158 Benchmark]: Toolchain (without parser) took 131733.56ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.2MB in the beginning and 23.3MB in the end (delta: 12.9MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2021-11-19 14:49:25,270 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory was 39.5MB in the beginning and 39.5MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:49:25,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.04ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.0MB in the beginning and 60.4MB in the end (delta: -24.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-11-19 14:49:25,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.52ms. Allocated memory is still 77.6MB. Free memory was 60.4MB in the beginning and 59.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:49:25,271 INFO L158 Benchmark]: Boogie Preprocessor took 50.24ms. Allocated memory is still 77.6MB. Free memory was 59.0MB in the beginning and 57.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:49:25,271 INFO L158 Benchmark]: RCFGBuilder took 360.77ms. Allocated memory is still 77.6MB. Free memory was 57.7MB in the beginning and 48.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:49:25,272 INFO L158 Benchmark]: TraceAbstraction took 130904.45ms. Allocated memory is still 77.6MB. Free memory was 47.8MB in the beginning and 29.6MB in the end (delta: 18.3MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2021-11-19 14:49:25,272 INFO L158 Benchmark]: Witness Printer took 78.35ms. Allocated memory is still 77.6MB. Free memory was 29.6MB in the beginning and 23.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 14:49:25,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory was 39.5MB in the beginning and 39.5MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.04ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.0MB in the beginning and 60.4MB in the end (delta: -24.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.52ms. Allocated memory is still 77.6MB. Free memory was 60.4MB in the beginning and 59.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.24ms. Allocated memory is still 77.6MB. Free memory was 59.0MB in the beginning and 57.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.77ms. Allocated memory is still 77.6MB. Free memory was 57.7MB in the beginning and 48.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 130904.45ms. Allocated memory is still 77.6MB. Free memory was 47.8MB in the beginning and 29.6MB in the end (delta: 18.3MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 78.35ms. Allocated memory is still 77.6MB. Free memory was 29.6MB in the beginning and 23.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 130.8s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 34 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 437 IncrementalHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 29 mSDtfsCounter, 437 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 385 GetRequests, 225 SyntacticMatches, 21 SemanticMatches, 139 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 117.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=4, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 20 NumberOfFragments, 2107 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 386 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 121.1s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 358 ConstructedInterpolants, 3 QuantifiedInterpolants, 30803 SizeOfPredicates, 38 NumberOfNonLiveVariables, 628 ConjunctsInSsa, 226 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 240/1590 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((((((((((((((i == 2bv32 && z == ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)))) || (z == ~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))) && i == 3bv32)) || (14bv32 == i && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4096bv32), 12bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4096bv32), 13bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8192bv32), 13bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8192bv32), 14bv32))))) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) && i == 9bv32)) || (i == 10bv32 && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))))) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) && 4bv32 == i)) || (i == 12bv32 && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32))))) || (i == 1bv32 && z == ~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))))) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4096bv32), 12bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4096bv32), 13bv32))) && i == 13bv32)) || (~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4096bv32), 12bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4096bv32), 13bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8192bv32), 13bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8192bv32), 14bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16384bv32), 14bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16384bv32), 15bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32768bv32), 15bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32768bv32), 16bv32))) == z && 16bv32 == i)) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))) && i == 8bv32)) || (i == 15bv32 && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4096bv32), 12bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4096bv32), 13bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8192bv32), 13bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8192bv32), 14bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))))) || (~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))) == z && i == 5bv32)) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) && i == 7bv32)) || (i == 6bv32 && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))))) || (i == 0bv32 && z == 0bv32)) || (~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) == z && i == 11bv32) RESULT: Ultimate proved your program to be correct! [2021-11-19 14:49:25,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_253d91d3-826f-420d-b686-d020a6996dfb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE