./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.4.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6c41b22889ce0c375d90224a16fac6c75f4d652b841ddcb6b40d2b7e12718d80 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:34:17,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:34:17,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:34:17,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:34:17,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:34:17,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:34:17,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:34:17,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:34:17,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:34:17,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:34:17,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:34:17,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:34:17,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:34:17,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:34:17,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:34:17,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:34:17,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:34:17,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:34:17,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:34:17,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:34:17,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:34:17,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:34:17,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:34:17,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:34:17,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:34:17,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:34:17,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:34:17,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:34:17,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:34:17,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:34:17,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:34:17,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:34:17,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:34:17,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:34:17,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:34:17,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:34:17,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:34:17,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:34:17,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:34:17,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:34:17,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:34:17,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:34:17,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:34:17,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:34:17,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:34:17,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:34:17,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:34:17,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:34:17,871 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:34:17,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:34:17,871 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:34:17,872 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:34:17,872 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:34:17,872 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:34:17,873 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:34:17,873 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:34:17,873 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:34:17,874 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:34:17,874 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:34:17,874 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:34:17,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:34:17,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:34:17,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:34:17,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:34:17,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:34:17,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:34:17,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:34:17,877 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:34:17,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:34:17,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:34:17,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:34:17,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:34:17,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:34:17,879 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:34:17,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:34:17,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:34:17,880 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:34:17,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:34:17,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:34:17,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:34:17,881 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_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c41b22889ce0c375d90224a16fac6c75f4d652b841ddcb6b40d2b7e12718d80 [2022-11-25 22:34:18,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:34:18,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:34:18,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:34:18,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:34:18,248 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:34:18,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.4.prop1-back-serstep.c [2022-11-25 22:34:21,760 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:34:22,374 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:34:22,375 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.4.prop1-back-serstep.c [2022-11-25 22:34:22,428 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/data/e7612d37b/98df7c7a8f5a45a199981b95ae09b784/FLAGf716e8293 [2022-11-25 22:34:22,449 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/data/e7612d37b/98df7c7a8f5a45a199981b95ae09b784 [2022-11-25 22:34:22,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:34:22,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:34:22,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:34:22,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:34:22,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:34:22,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:34:22" (1/1) ... [2022-11-25 22:34:22,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458a8261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:22, skipping insertion in model container [2022-11-25 22:34:22,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:34:22" (1/1) ... [2022-11-25 22:34:22,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:34:22,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:34:23,060 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_89156d93-338c-42ef-b913-c5efff2332d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.4.prop1-back-serstep.c[1014,1027] [2022-11-25 22:34:24,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:24,481 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:34:24,492 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_89156d93-338c-42ef-b913-c5efff2332d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.4.prop1-back-serstep.c[1014,1027] [2022-11-25 22:34:25,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:25,366 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:34:25,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25 WrapperNode [2022-11-25 22:34:25,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:34:25,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:34:25,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:34:25,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:34:25,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:25,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:26,858 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13239 [2022-11-25 22:34:26,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:34:26,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:34:26,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:34:26,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:34:26,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:26,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:27,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:27,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:27,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:27,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:27,468 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:27,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:27,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:34:27,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:34:27,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:34:27,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:34:27,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:25" (1/1) ... [2022-11-25 22:34:27,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:34:27,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:27,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:34:27,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89156d93-338c-42ef-b913-c5efff2332d5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:34:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:34:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:34:29,779 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:34:29,782 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation