./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45967cc4e53b62eab54374036873f4d712abc0ac66e520c048df1953dea8d5bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:04:25,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:04:25,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:04:25,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:04:25,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:04:25,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:04:25,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:04:25,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:04:25,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:04:25,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:04:25,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:04:25,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:04:25,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:04:25,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:04:25,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:04:25,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:04:25,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:04:25,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:04:25,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:04:25,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:04:25,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:04:25,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:04:25,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:04:25,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:04:26,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:04:26,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:04:26,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:04:26,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:04:26,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:04:26,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:04:26,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:04:26,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:04:26,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:04:26,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:04:26,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:04:26,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:04:26,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:04:26,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:04:26,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:04:26,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:04:26,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:04:26,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:04:26,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:04:26,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:04:26,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:04:26,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:04:26,082 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:04:26,082 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:04:26,083 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:04:26,083 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:04:26,083 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:04:26,083 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:04:26,084 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:04:26,084 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:04:26,084 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:04:26,084 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:04:26,084 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:04:26,085 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:04:26,085 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:04:26,085 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:04:26,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:04:26,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:04:26,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:04:26,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:04:26,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:04:26,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:04:26,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:04:26,087 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:04:26,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:04:26,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:04:26,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:04:26,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:04:26,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:04:26,089 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:04:26,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:04:26,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:04:26,089 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:04:26,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:04:26,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:04:26,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:04:26,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45967cc4e53b62eab54374036873f4d712abc0ac66e520c048df1953dea8d5bb [2022-11-23 15:04:26,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:04:26,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:04:26,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:04:26,480 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:04:26,480 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:04:26,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2022-11-23 15:04:29,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:04:29,879 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:04:29,882 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2022-11-23 15:04:29,899 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/data/b846b8186/dc321a0db158492ca452136b25bf212a/FLAG0b066e312 [2022-11-23 15:04:29,924 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/data/b846b8186/dc321a0db158492ca452136b25bf212a [2022-11-23 15:04:29,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:04:29,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:04:29,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:04:29,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:04:29,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:04:29,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:29" (1/1) ... [2022-11-23 15:04:29,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713a65ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:29, skipping insertion in model container [2022-11-23 15:04:29,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:29" (1/1) ... [2022-11-23 15:04:29,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:04:30,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:04:30,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c[1107,1120] [2022-11-23 15:04:30,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:04:30,582 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:04:30,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c[1107,1120] [2022-11-23 15:04:30,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:04:30,730 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:04:30,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30 WrapperNode [2022-11-23 15:04:30,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:04:30,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:04:30,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:04:30,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:04:30,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,898 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1234 [2022-11-23 15:04:30,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:04:30,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:04:30,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:04:30,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:04:30,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,973 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:30,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:31,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:04:31,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:04:31,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:04:31,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:04:31,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (1/1) ... [2022-11-23 15:04:31,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:04:31,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:04:31,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:04:31,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:04:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:04:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:04:31,469 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:04:31,472 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:05:00,524 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:05:00,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:05:00,568 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:05:00,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:05:00 BoogieIcfgContainer [2022-11-23 15:05:00,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:05:00,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:05:00,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:05:00,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:05:00,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:04:29" (1/3) ... [2022-11-23 15:05:00,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199e2b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:05:00, skipping insertion in model container [2022-11-23 15:05:00,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:30" (2/3) ... [2022-11-23 15:05:00,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199e2b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:05:00, skipping insertion in model container [2022-11-23 15:05:00,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:05:00" (3/3) ... [2022-11-23 15:05:00,583 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_two_p1.c [2022-11-23 15:05:00,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:05:00,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:05:00,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:05:00,671 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3468109e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:05:00,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:05:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:05:00,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:05:00,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:00,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:05:00,685 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:05:00,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:00,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 15:05:00,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:00,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352267820] [2022-11-23 15:05:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:00,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:05:04,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:05:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:05:06,177 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:05:06,183 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:05:06,184 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:05:06,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:05:06,191 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:05:06,195 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:05:06,246 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 15:05:06,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:05:06 BoogieIcfgContainer [2022-11-23 15:05:06,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:05:06,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:05:06,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:05:06,277 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:05:06,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:05:00" (3/4) ... [2022-11-23 15:05:06,283 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:05:06,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:05:06,286 INFO L158 Benchmark]: Toolchain (without parser) took 36353.87ms. Allocated memory was 146.8MB in the beginning and 824.2MB in the end (delta: 677.4MB). Free memory was 115.9MB in the beginning and 623.3MB in the end (delta: -507.4MB). Peak memory consumption was 171.5MB. Max. memory is 16.1GB. [2022-11-23 15:05:06,287 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 121.6MB. Free memory was 86.4MB in the beginning and 86.3MB in the end (delta: 62.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:05:06,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 791.14ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 73.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-23 15:05:06,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 166.95ms. Allocated memory is still 146.8MB. Free memory was 73.1MB in the beginning and 60.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:05:06,290 INFO L158 Benchmark]: Boogie Preprocessor took 115.63ms. Allocated memory is still 146.8MB. Free memory was 60.1MB in the beginning and 53.4MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 15:05:06,291 INFO L158 Benchmark]: RCFGBuilder took 29555.31ms. Allocated memory was 146.8MB in the beginning and 824.2MB in the end (delta: 677.4MB). Free memory was 53.4MB in the beginning and 561.8MB in the end (delta: -508.4MB). Peak memory consumption was 450.5MB. Max. memory is 16.1GB. [2022-11-23 15:05:06,292 INFO L158 Benchmark]: TraceAbstraction took 5701.34ms. Allocated memory is still 824.2MB. Free memory was 560.7MB in the beginning and 624.3MB in the end (delta: -63.6MB). Peak memory consumption was 271.5MB. Max. memory is 16.1GB. [2022-11-23 15:05:06,292 INFO L158 Benchmark]: Witness Printer took 9.39ms. Allocated memory is still 824.2MB. Free memory was 624.3MB in the beginning and 623.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:05:06,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 121.6MB. Free memory was 86.4MB in the beginning and 86.3MB in the end (delta: 62.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 791.14ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 73.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 166.95ms. Allocated memory is still 146.8MB. Free memory was 73.1MB in the beginning and 60.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.63ms. Allocated memory is still 146.8MB. Free memory was 60.1MB in the beginning and 53.4MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 29555.31ms. Allocated memory was 146.8MB in the beginning and 824.2MB in the end (delta: 677.4MB). Free memory was 53.4MB in the beginning and 561.8MB in the end (delta: -508.4MB). Peak memory consumption was 450.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5701.34ms. Allocated memory is still 824.2MB. Free memory was 560.7MB in the beginning and 624.3MB in the end (delta: -63.6MB). Peak memory consumption was 271.5MB. Max. memory is 16.1GB. * Witness Printer took 9.39ms. Allocated memory is still 824.2MB. Free memory was 624.3MB in the beginning and 623.3MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 382, overapproximation of bitwiseAnd at line 132. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 3); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (3 - 1); [L31] const SORT_125 mask_SORT_125 = (SORT_125)-1 >> (sizeof(SORT_125) * 8 - 2); [L32] const SORT_125 msb_SORT_125 = (SORT_125)1 << (2 - 1); [L34] const SORT_141 mask_SORT_141 = (SORT_141)-1 >> (sizeof(SORT_141) * 8 - 32); [L35] const SORT_141 msb_SORT_141 = (SORT_141)1 << (32 - 1); [L37] const SORT_3 var_6 = 7; [L38] const SORT_3 var_9 = 6; [L39] const SORT_1 var_12 = 0; [L40] const SORT_3 var_14 = 5; [L41] const SORT_3 var_17 = 4; [L42] const SORT_3 var_22 = 3; [L43] const SORT_3 var_25 = 2; [L44] const SORT_3 var_29 = 1; [L45] const SORT_3 var_32 = 0; [L46] const SORT_1 var_39 = 1; [L47] const SORT_125 var_134 = 0; [L48] const SORT_125 var_136 = 1; [L49] const SORT_141 var_143 = 0; [L50] const SORT_125 var_147 = 2; [L51] const SORT_141 var_150 = 1; [L52] const SORT_125 var_154 = 3; [L54] SORT_1 input_2; [L55] SORT_3 input_4; [L56] SORT_3 input_5; [L57] SORT_3 input_164; [L58] SORT_3 input_175; [L59] SORT_3 input_189; [L60] SORT_3 input_192; [L62] SORT_3 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L63] SORT_3 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L64] SORT_3 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L65] SORT_3 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L66] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L67] SORT_3 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L68] SORT_3 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L69] SORT_3 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L70] SORT_3 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L71] SORT_3 state_112 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L73] SORT_3 init_8_arg_1 = var_6; [L74] state_7 = init_8_arg_1 [L75] SORT_3 init_11_arg_1 = var_9; [L76] state_10 = init_11_arg_1 [L77] SORT_3 init_16_arg_1 = var_14; [L78] state_15 = init_16_arg_1 [L79] SORT_3 init_19_arg_1 = var_17; [L80] state_18 = init_19_arg_1 [L81] SORT_3 init_24_arg_1 = var_22; [L82] state_23 = init_24_arg_1 [L83] SORT_3 init_27_arg_1 = var_25; [L84] state_26 = init_27_arg_1 [L85] SORT_3 init_31_arg_1 = var_29; [L86] state_30 = init_31_arg_1 [L87] SORT_3 init_34_arg_1 = var_32; [L88] state_33 = init_34_arg_1 [L89] SORT_3 init_110_arg_1 = var_32; [L90] state_109 = init_110_arg_1 [L91] SORT_3 init_113_arg_1 = var_32; [L92] state_112 = init_113_arg_1 VAL [init_110_arg_1=0, init_113_arg_1=0, init_11_arg_1=6, init_16_arg_1=5, init_19_arg_1=4, init_24_arg_1=3, init_27_arg_1=2, init_31_arg_1=1, init_34_arg_1=0, init_8_arg_1=7, mask_SORT_1=1, mask_SORT_125=3, mask_SORT_141=4294967295, mask_SORT_3=7, msb_SORT_1=1, msb_SORT_125=2, msb_SORT_141=2147483648, msb_SORT_3=4, state_10=6, state_109=0, state_112=0, state_15=5, state_18=4, state_23=3, state_26=2, state_30=1, state_33=0, state_7=7, var_12=0, var_134=0, var_136=1, var_14=5, var_143=0, var_147=2, var_150=1, var_154=3, var_17=4, var_22=3, var_25=2, var_29=1, var_32=0, var_39=1, var_6=7, var_9=6] [L95] input_2 = __VERIFIER_nondet_uchar() [L96] input_4 = __VERIFIER_nondet_uchar() [L97] input_5 = __VERIFIER_nondet_uchar() [L98] input_164 = __VERIFIER_nondet_uchar() [L99] input_175 = __VERIFIER_nondet_uchar() [L100] input_189 = __VERIFIER_nondet_uchar() [L101] input_192 = __VERIFIER_nondet_uchar() [L104] SORT_1 var_35_arg_0 = var_12; [L105] SORT_3 var_35_arg_1 = state_33; [L106] SORT_3 var_35_arg_2 = state_30; [L107] SORT_3 var_35 = var_35_arg_0 ? var_35_arg_1 : var_35_arg_2; [L108] SORT_1 var_28_arg_0 = var_12; [L109] SORT_3 var_28_arg_1 = state_26; [L110] SORT_3 var_28_arg_2 = state_23; [L111] SORT_3 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L112] SORT_1 var_36_arg_0 = var_12; [L113] SORT_3 var_36_arg_1 = var_35; [L114] SORT_3 var_36_arg_2 = var_28; [L115] SORT_3 var_36 = var_36_arg_0 ? var_36_arg_1 : var_36_arg_2; [L116] SORT_1 var_20_arg_0 = var_12; [L117] SORT_3 var_20_arg_1 = state_18; [L118] SORT_3 var_20_arg_2 = state_15; [L119] SORT_3 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L120] SORT_1 var_13_arg_0 = var_12; [L121] SORT_3 var_13_arg_1 = state_10; [L122] SORT_3 var_13_arg_2 = state_7; [L123] SORT_3 var_13 = var_13_arg_0 ? var_13_arg_1 : var_13_arg_2; [L124] SORT_1 var_21_arg_0 = var_12; [L125] SORT_3 var_21_arg_1 = var_20; [L126] SORT_3 var_21_arg_2 = var_13; [L127] SORT_3 var_21 = var_21_arg_0 ? var_21_arg_1 : var_21_arg_2; [L128] SORT_1 var_37_arg_0 = var_12; [L129] SORT_3 var_37_arg_1 = var_36; [L130] SORT_3 var_37_arg_2 = var_21; [L131] SORT_3 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L132] var_37 = var_37 & mask_SORT_3 [L133] SORT_3 var_38_arg_0 = var_37; [L134] SORT_3 var_38_arg_1 = var_32; [L135] SORT_1 var_38 = var_38_arg_0 == var_38_arg_1; [L136] SORT_1 var_44_arg_0 = var_39; [L137] SORT_3 var_44_arg_1 = state_33; [L138] SORT_3 var_44_arg_2 = state_30; [L139] SORT_3 var_44 = var_44_arg_0 ? var_44_arg_1 : var_44_arg_2; [L140] SORT_1 var_43_arg_0 = var_39; [L141] SORT_3 var_43_arg_1 = state_26; [L142] SORT_3 var_43_arg_2 = state_23; [L143] SORT_3 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L144] SORT_1 var_45_arg_0 = var_12; [L145] SORT_3 var_45_arg_1 = var_44; [L146] SORT_3 var_45_arg_2 = var_43; [L147] SORT_3 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L148] SORT_1 var_41_arg_0 = var_39; [L149] SORT_3 var_41_arg_1 = state_18; [L150] SORT_3 var_41_arg_2 = state_15; [L151] SORT_3 var_41 = var_41_arg_0 ? var_41_arg_1 : var_41_arg_2; [L152] SORT_1 var_40_arg_0 = var_39; [L153] SORT_3 var_40_arg_1 = state_10; [L154] SORT_3 var_40_arg_2 = state_7; [L155] SORT_3 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L156] SORT_1 var_42_arg_0 = var_12; [L157] SORT_3 var_42_arg_1 = var_41; [L158] SORT_3 var_42_arg_2 = var_40; [L159] SORT_3 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L160] SORT_1 var_46_arg_0 = var_12; [L161] SORT_3 var_46_arg_1 = var_45; [L162] SORT_3 var_46_arg_2 = var_42; [L163] SORT_3 var_46 = var_46_arg_0 ? var_46_arg_1 : var_46_arg_2; [L164] var_46 = var_46 & mask_SORT_3 [L165] SORT_3 var_47_arg_0 = var_46; [L166] SORT_3 var_47_arg_1 = var_29; [L167] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L168] SORT_1 var_48_arg_0 = var_38; [L169] SORT_1 var_48_arg_1 = var_47; [L170] SORT_1 var_48 = var_48_arg_0 & var_48_arg_1; [L171] SORT_1 var_53_arg_0 = var_12; [L172] SORT_3 var_53_arg_1 = state_33; [L173] SORT_3 var_53_arg_2 = state_30; [L174] SORT_3 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L175] SORT_1 var_52_arg_0 = var_12; [L176] SORT_3 var_52_arg_1 = state_26; [L177] SORT_3 var_52_arg_2 = state_23; [L178] SORT_3 var_52 = var_52_arg_0 ? var_52_arg_1 : var_52_arg_2; [L179] SORT_1 var_54_arg_0 = var_39; [L180] SORT_3 var_54_arg_1 = var_53; [L181] SORT_3 var_54_arg_2 = var_52; [L182] SORT_3 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L183] SORT_1 var_50_arg_0 = var_12; [L184] SORT_3 var_50_arg_1 = state_18; [L185] SORT_3 var_50_arg_2 = state_15; [L186] SORT_3 var_50 = var_50_arg_0 ? var_50_arg_1 : var_50_arg_2; [L187] SORT_1 var_49_arg_0 = var_12; [L188] SORT_3 var_49_arg_1 = state_10; [L189] SORT_3 var_49_arg_2 = state_7; [L190] SORT_3 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; [L191] SORT_1 var_51_arg_0 = var_39; [L192] SORT_3 var_51_arg_1 = var_50; [L193] SORT_3 var_51_arg_2 = var_49; [L194] SORT_3 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L195] SORT_1 var_55_arg_0 = var_12; [L196] SORT_3 var_55_arg_1 = var_54; [L197] SORT_3 var_55_arg_2 = var_51; [L198] SORT_3 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L199] var_55 = var_55 & mask_SORT_3 [L200] SORT_3 var_56_arg_0 = var_55; [L201] SORT_3 var_56_arg_1 = var_25; [L202] SORT_1 var_56 = var_56_arg_0 == var_56_arg_1; [L203] SORT_1 var_57_arg_0 = var_48; [L204] SORT_1 var_57_arg_1 = var_56; [L205] SORT_1 var_57 = var_57_arg_0 & var_57_arg_1; [L206] SORT_1 var_62_arg_0 = var_39; [L207] SORT_3 var_62_arg_1 = state_33; [L208] SORT_3 var_62_arg_2 = state_30; [L209] SORT_3 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L210] SORT_1 var_61_arg_0 = var_39; [L211] SORT_3 var_61_arg_1 = state_26; [L212] SORT_3 var_61_arg_2 = state_23; [L213] SORT_3 var_61 = var_61_arg_0 ? var_61_arg_1 : var_61_arg_2; [L214] SORT_1 var_63_arg_0 = var_39; [L215] SORT_3 var_63_arg_1 = var_62; [L216] SORT_3 var_63_arg_2 = var_61; [L217] SORT_3 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L218] SORT_1 var_59_arg_0 = var_39; [L219] SORT_3 var_59_arg_1 = state_18; [L220] SORT_3 var_59_arg_2 = state_15; [L221] SORT_3 var_59 = var_59_arg_0 ? var_59_arg_1 : var_59_arg_2; [L222] SORT_1 var_58_arg_0 = var_39; [L223] SORT_3 var_58_arg_1 = state_10; [L224] SORT_3 var_58_arg_2 = state_7; [L225] SORT_3 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L226] SORT_1 var_60_arg_0 = var_39; [L227] SORT_3 var_60_arg_1 = var_59; [L228] SORT_3 var_60_arg_2 = var_58; [L229] SORT_3 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L230] SORT_1 var_64_arg_0 = var_12; [L231] SORT_3 var_64_arg_1 = var_63; [L232] SORT_3 var_64_arg_2 = var_60; [L233] SORT_3 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L234] var_64 = var_64 & mask_SORT_3 [L235] SORT_3 var_65_arg_0 = var_64; [L236] SORT_3 var_65_arg_1 = var_22; [L237] SORT_1 var_65 = var_65_arg_0 == var_65_arg_1; [L238] SORT_1 var_66_arg_0 = var_57; [L239] SORT_1 var_66_arg_1 = var_65; [L240] SORT_1 var_66 = var_66_arg_0 & var_66_arg_1; [L241] SORT_1 var_71_arg_0 = var_12; [L242] SORT_3 var_71_arg_1 = state_33; [L243] SORT_3 var_71_arg_2 = state_30; [L244] SORT_3 var_71 = var_71_arg_0 ? var_71_arg_1 : var_71_arg_2; [L245] SORT_1 var_70_arg_0 = var_12; [L246] SORT_3 var_70_arg_1 = state_26; [L247] SORT_3 var_70_arg_2 = state_23; [L248] SORT_3 var_70 = var_70_arg_0 ? var_70_arg_1 : var_70_arg_2; [L249] SORT_1 var_72_arg_0 = var_12; [L250] SORT_3 var_72_arg_1 = var_71; [L251] SORT_3 var_72_arg_2 = var_70; [L252] SORT_3 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L253] SORT_1 var_68_arg_0 = var_12; [L254] SORT_3 var_68_arg_1 = state_18; [L255] SORT_3 var_68_arg_2 = state_15; [L256] SORT_3 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L257] SORT_1 var_67_arg_0 = var_12; [L258] SORT_3 var_67_arg_1 = state_10; [L259] SORT_3 var_67_arg_2 = state_7; [L260] SORT_3 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L261] SORT_1 var_69_arg_0 = var_12; [L262] SORT_3 var_69_arg_1 = var_68; [L263] SORT_3 var_69_arg_2 = var_67; [L264] SORT_3 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L265] SORT_1 var_73_arg_0 = var_39; [L266] SORT_3 var_73_arg_1 = var_72; [L267] SORT_3 var_73_arg_2 = var_69; [L268] SORT_3 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L269] var_73 = var_73 & mask_SORT_3 [L270] SORT_3 var_74_arg_0 = var_73; [L271] SORT_3 var_74_arg_1 = var_17; [L272] SORT_1 var_74 = var_74_arg_0 == var_74_arg_1; [L273] SORT_1 var_75_arg_0 = var_66; [L274] SORT_1 var_75_arg_1 = var_74; [L275] SORT_1 var_75 = var_75_arg_0 & var_75_arg_1; [L276] SORT_1 var_80_arg_0 = var_39; [L277] SORT_3 var_80_arg_1 = state_33; [L278] SORT_3 var_80_arg_2 = state_30; [L279] SORT_3 var_80 = var_80_arg_0 ? var_80_arg_1 : var_80_arg_2; [L280] SORT_1 var_79_arg_0 = var_39; [L281] SORT_3 var_79_arg_1 = state_26; [L282] SORT_3 var_79_arg_2 = state_23; [L283] SORT_3 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L284] SORT_1 var_81_arg_0 = var_12; [L285] SORT_3 var_81_arg_1 = var_80; [L286] SORT_3 var_81_arg_2 = var_79; [L287] SORT_3 var_81 = var_81_arg_0 ? var_81_arg_1 : var_81_arg_2; [L288] SORT_1 var_77_arg_0 = var_39; [L289] SORT_3 var_77_arg_1 = state_18; [L290] SORT_3 var_77_arg_2 = state_15; [L291] SORT_3 var_77 = var_77_arg_0 ? var_77_arg_1 : var_77_arg_2; [L292] SORT_1 var_76_arg_0 = var_39; [L293] SORT_3 var_76_arg_1 = state_10; [L294] SORT_3 var_76_arg_2 = state_7; [L295] SORT_3 var_76 = var_76_arg_0 ? var_76_arg_1 : var_76_arg_2; [L296] SORT_1 var_78_arg_0 = var_12; [L297] SORT_3 var_78_arg_1 = var_77; [L298] SORT_3 var_78_arg_2 = var_76; [L299] SORT_3 var_78 = var_78_arg_0 ? var_78_arg_1 : var_78_arg_2; [L300] SORT_1 var_82_arg_0 = var_39; [L301] SORT_3 var_82_arg_1 = var_81; [L302] SORT_3 var_82_arg_2 = var_78; [L303] SORT_3 var_82 = var_82_arg_0 ? var_82_arg_1 : var_82_arg_2; [L304] var_82 = var_82 & mask_SORT_3 [L305] SORT_3 var_83_arg_0 = var_82; [L306] SORT_3 var_83_arg_1 = var_14; [L307] SORT_1 var_83 = var_83_arg_0 == var_83_arg_1; [L308] SORT_1 var_84_arg_0 = var_75; [L309] SORT_1 var_84_arg_1 = var_83; [L310] SORT_1 var_84 = var_84_arg_0 & var_84_arg_1; [L311] SORT_1 var_89_arg_0 = var_12; [L312] SORT_3 var_89_arg_1 = state_33; [L313] SORT_3 var_89_arg_2 = state_30; [L314] SORT_3 var_89 = var_89_arg_0 ? var_89_arg_1 : var_89_arg_2; [L315] SORT_1 var_88_arg_0 = var_12; [L316] SORT_3 var_88_arg_1 = state_26; [L317] SORT_3 var_88_arg_2 = state_23; [L318] SORT_3 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L319] SORT_1 var_90_arg_0 = var_39; [L320] SORT_3 var_90_arg_1 = var_89; [L321] SORT_3 var_90_arg_2 = var_88; [L322] SORT_3 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L323] SORT_1 var_86_arg_0 = var_12; [L324] SORT_3 var_86_arg_1 = state_18; [L325] SORT_3 var_86_arg_2 = state_15; [L326] SORT_3 var_86 = var_86_arg_0 ? var_86_arg_1 : var_86_arg_2; [L327] SORT_1 var_85_arg_0 = var_12; [L328] SORT_3 var_85_arg_1 = state_10; [L329] SORT_3 var_85_arg_2 = state_7; [L330] SORT_3 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L331] SORT_1 var_87_arg_0 = var_39; [L332] SORT_3 var_87_arg_1 = var_86; [L333] SORT_3 var_87_arg_2 = var_85; [L334] SORT_3 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L335] SORT_1 var_91_arg_0 = var_39; [L336] SORT_3 var_91_arg_1 = var_90; [L337] SORT_3 var_91_arg_2 = var_87; [L338] SORT_3 var_91 = var_91_arg_0 ? var_91_arg_1 : var_91_arg_2; [L339] var_91 = var_91 & mask_SORT_3 [L340] SORT_3 var_92_arg_0 = var_91; [L341] SORT_3 var_92_arg_1 = var_9; [L342] SORT_1 var_92 = var_92_arg_0 == var_92_arg_1; [L343] SORT_1 var_93_arg_0 = var_84; [L344] SORT_1 var_93_arg_1 = var_92; [L345] SORT_1 var_93 = var_93_arg_0 & var_93_arg_1; [L346] SORT_1 var_98_arg_0 = var_39; [L347] SORT_3 var_98_arg_1 = state_33; [L348] SORT_3 var_98_arg_2 = state_30; [L349] SORT_3 var_98 = var_98_arg_0 ? var_98_arg_1 : var_98_arg_2; [L350] SORT_1 var_97_arg_0 = var_39; [L351] SORT_3 var_97_arg_1 = state_26; [L352] SORT_3 var_97_arg_2 = state_23; [L353] SORT_3 var_97 = var_97_arg_0 ? var_97_arg_1 : var_97_arg_2; [L354] SORT_1 var_99_arg_0 = var_39; [L355] SORT_3 var_99_arg_1 = var_98; [L356] SORT_3 var_99_arg_2 = var_97; [L357] SORT_3 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L358] SORT_1 var_95_arg_0 = var_39; [L359] SORT_3 var_95_arg_1 = state_18; [L360] SORT_3 var_95_arg_2 = state_15; [L361] SORT_3 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; [L362] SORT_1 var_94_arg_0 = var_39; [L363] SORT_3 var_94_arg_1 = state_10; [L364] SORT_3 var_94_arg_2 = state_7; [L365] SORT_3 var_94 = var_94_arg_0 ? var_94_arg_1 : var_94_arg_2; [L366] SORT_1 var_96_arg_0 = var_39; [L367] SORT_3 var_96_arg_1 = var_95; [L368] SORT_3 var_96_arg_2 = var_94; [L369] SORT_3 var_96 = var_96_arg_0 ? var_96_arg_1 : var_96_arg_2; [L370] SORT_1 var_100_arg_0 = var_39; [L371] SORT_3 var_100_arg_1 = var_99; [L372] SORT_3 var_100_arg_2 = var_96; [L373] SORT_3 var_100 = var_100_arg_0 ? var_100_arg_1 : var_100_arg_2; [L374] var_100 = var_100 & mask_SORT_3 [L375] SORT_3 var_101_arg_0 = var_100; [L376] SORT_3 var_101_arg_1 = var_6; [L377] SORT_1 var_101 = var_101_arg_0 == var_101_arg_1; [L378] SORT_1 var_102_arg_0 = var_93; [L379] SORT_1 var_102_arg_1 = var_101; [L380] SORT_1 var_102 = var_102_arg_0 & var_102_arg_1; [L381] SORT_1 var_103_arg_0 = var_102; [L382] SORT_1 var_103 = ~var_103_arg_0; [L383] SORT_1 var_106_arg_0 = var_103; [L384] SORT_1 var_106 = ~var_106_arg_0; [L385] SORT_1 var_107_arg_0 = var_39; [L386] SORT_1 var_107_arg_1 = var_106; [L387] SORT_1 var_107 = var_107_arg_0 & var_107_arg_1; [L388] var_107 = var_107 & mask_SORT_1 [L389] SORT_1 bad_108_arg_0 = var_107; [L390] CALL __VERIFIER_assert(!(bad_108_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:05:06,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45967cc4e53b62eab54374036873f4d712abc0ac66e520c048df1953dea8d5bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:05:08,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:05:08,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:05:08,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:05:08,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:05:08,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:05:08,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:05:08,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:05:08,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:05:08,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:05:08,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:05:08,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:05:08,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:05:08,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:05:08,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:05:08,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:05:08,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:05:08,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:05:08,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:05:08,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:05:08,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:05:08,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:05:08,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:05:08,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:05:08,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:05:08,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:05:08,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:05:08,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:05:08,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:05:08,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:05:08,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:05:08,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:05:08,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:05:08,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:05:08,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:05:08,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:05:08,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:05:08,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:05:08,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:05:08,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:05:08,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:05:08,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 15:05:08,780 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:05:08,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:05:08,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:05:08,781 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:05:08,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:05:08,782 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:05:08,783 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:05:08,783 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:05:08,783 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:05:08,784 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:05:08,784 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:05:08,784 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:05:08,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:05:08,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:05:08,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:05:08,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:05:08,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:05:08,786 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:05:08,787 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:05:08,787 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:05:08,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:05:08,788 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:05:08,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:05:08,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:05:08,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:05:08,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:05:08,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:05:08,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:05:08,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:05:08,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:05:08,790 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:05:08,791 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:05:08,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:05:08,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:05:08,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:05:08,792 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_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45967cc4e53b62eab54374036873f4d712abc0ac66e520c048df1953dea8d5bb [2022-11-23 15:05:09,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:05:09,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:05:09,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:05:09,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:05:09,191 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:05:09,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2022-11-23 15:05:12,323 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:05:12,655 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:05:12,656 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2022-11-23 15:05:12,674 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/data/fdf3fed52/55f9718a052f43aa90da95f9695fc920/FLAGb4f77715e [2022-11-23 15:05:12,691 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/data/fdf3fed52/55f9718a052f43aa90da95f9695fc920 [2022-11-23 15:05:12,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:05:12,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:05:12,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:05:12,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:05:12,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:05:12,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:12" (1/1) ... [2022-11-23 15:05:12,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee402e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:12, skipping insertion in model container [2022-11-23 15:05:12,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:12" (1/1) ... [2022-11-23 15:05:12,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:05:12,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:05:12,945 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c[1107,1120] [2022-11-23 15:05:13,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:05:13,356 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:05:13,368 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c[1107,1120] [2022-11-23 15:05:13,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:05:13,520 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:05:13,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13 WrapperNode [2022-11-23 15:05:13,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:05:13,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:05:13,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:05:13,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:05:13,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,650 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1234 [2022-11-23 15:05:13,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:05:13,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:05:13,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:05:13,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:05:13,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,774 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:05:13,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:05:13,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:05:13,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:05:13,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2022-11-23 15:05:13,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:05:13,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:05:13,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:05:13,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:05:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:05:13,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:05:14,319 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:05:14,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:05:15,837 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:05:15,843 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:05:15,844 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:05:15,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:05:15 BoogieIcfgContainer [2022-11-23 15:05:15,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:05:15,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:05:15,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:05:15,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:05:15,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:05:12" (1/3) ... [2022-11-23 15:05:15,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a88bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:05:15, skipping insertion in model container [2022-11-23 15:05:15,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (2/3) ... [2022-11-23 15:05:15,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a88bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:05:15, skipping insertion in model container [2022-11-23 15:05:15,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:05:15" (3/3) ... [2022-11-23 15:05:15,854 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_two_p1.c [2022-11-23 15:05:15,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:05:15,873 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:05:15,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:05:15,927 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b08ab65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:05:15,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:05:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:05:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:05:15,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:15,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:05:15,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:05:15,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:15,946 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 15:05:15,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:05:15,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542009117] [2022-11-23 15:05:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:15,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:05:15,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:05:15,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:05:15,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:05:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:16,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-23 15:05:16,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:05:16,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:05:16,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:05:16,826 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:05:16,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542009117] [2022-11-23 15:05:16,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542009117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:16,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:16,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:05:16,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124726316] [2022-11-23 15:05:16,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:16,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:05:16,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:05:16,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:05:16,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:05:16,880 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:05:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:17,066 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 15:05:17,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:05:17,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 15:05:17,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:17,077 INFO L225 Difference]: With dead ends: 20 [2022-11-23 15:05:17,077 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 15:05:17,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:05:17,083 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:17,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:05:17,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 15:05:17,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 15:05:17,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:05:17,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 15:05:17,115 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 15:05:17,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:17,115 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 15:05:17,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:05:17,116 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 15:05:17,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:05:17,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:17,116 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 15:05:17,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:05:17,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:05:17,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:05:17,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:17,331 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 15:05:17,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:05:17,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678147302] [2022-11-23 15:05:17,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:17,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:05:17,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:05:17,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:05:17,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:05:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:18,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 89 conjunts are in the unsatisfiable core [2022-11-23 15:05:18,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:05:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:05:19,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:05:48,580 WARN L233 SmtUtils]: Spent 23.48s on a formula simplification. DAG size of input: 345 DAG size of output: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:49,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:05:49,398 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:05:49,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678147302] [2022-11-23 15:05:49,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678147302] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:05:49,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [432908743] [2022-11-23 15:05:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:49,405 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:05:49,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:05:49,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:05:49,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 15:05:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:50,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-23 15:05:50,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:05:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:05:51,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:07:04,666 WARN L233 SmtUtils]: Spent 46.12s on a formula simplification. DAG size of input: 1024 DAG size of output: 238 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:05,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [432908743] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:07:05,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424787348] [2022-11-23 15:07:05,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:05,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:05,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:05,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:07:05,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:07:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:05,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-23 15:07:05,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:06,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:08:16,247 WARN L233 SmtUtils]: Spent 1.00m on a formula simplification. DAG size of input: 364 DAG size of output: 280 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:08:22,275 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 275 DAG size of output: 275 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:08:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:08:27,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424787348] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:08:27,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:08:27,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 7] total 17 [2022-11-23 15:08:27,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563003416] [2022-11-23 15:08:27,349 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:08:27,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:08:27,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:08:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:08:27,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=215, Unknown=3, NotChecked=0, Total=272 [2022-11-23 15:08:27,352 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:08:28,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:28,114 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 15:08:28,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:08:28,115 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 15:08:28,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:28,116 INFO L225 Difference]: With dead ends: 16 [2022-11-23 15:08:28,116 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 15:08:28,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 147.3s TimeCoverageRelationStatistics Valid=95, Invalid=282, Unknown=3, NotChecked=0, Total=380 [2022-11-23 15:08:28,118 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:28,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 32 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:08:28,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 15:08:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 15:08:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:08:28,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 15:08:28,125 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 15:08:28,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:28,126 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 15:08:28,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:08:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 15:08:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:08:28,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:28,127 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 15:08:28,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-23 15:08:28,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:08:28,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:08:28,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:08:28,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:28,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:28,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 15:08:28,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:08:28,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160247867] [2022-11-23 15:08:28,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:08:28,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:08:28,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:08:28,747 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:08:28,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd06f55-148a-4da0-ba13-5e6065bc1534/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 15:08:29,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:08:29,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:08:29,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 2443 conjuncts, 241 conjunts are in the unsatisfiable core [2022-11-23 15:08:29,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:08:57,791 WARN L233 SmtUtils]: Spent 22.85s on a formula simplification. DAG size of input: 351 DAG size of output: 148 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:08:58,286 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:08:58,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:16:13,564 WARN L233 SmtUtils]: Spent 7.10m on a formula simplification. DAG size of input: 754 DAG size of output: 559 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)