./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.7.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS --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 4c04bd12cac49345f87afeb5d5806bfcfe43eb3de65f4e8bb09df50224ab6e67 --- 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-8393723 [2022-11-19 07:19:53,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:19:53,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:19:53,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:19:53,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:19:53,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:19:53,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:19:53,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:19:53,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:19:53,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:19:53,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:19:53,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:19:53,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:19:53,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:19:53,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:19:53,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:19:53,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:19:53,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:19:53,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:19:53,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:19:53,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:19:53,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:19:53,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:19:53,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:19:53,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:19:53,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:19:53,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:19:53,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:19:53,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:19:53,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:19:53,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:19:53,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:19:53,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:19:53,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:19:53,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:19:53,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:19:53,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:19:53,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:19:53,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:19:53,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:19:53,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:19:53,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:19:53,777 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:19:53,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:19:53,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:19:53,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:19:53,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:19:53,781 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:19:53,781 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:19:53,781 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:19:53,782 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:19:53,782 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:19:53,783 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:19:53,783 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:19:53,783 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:19:53,784 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:19:53,784 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:19:53,784 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:19:53,784 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:19:53,785 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:19:53,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:19:53,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:19:53,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:19:53,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:19:53,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:19:53,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:19:53,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:19:53,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:19:53,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:19:53,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:19:53,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:19:53,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:19:53,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:19:53,790 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:19:53,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:19:53,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:19:53,791 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:19:53,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:19:53,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:19:53,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:19:53,792 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_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c04bd12cac49345f87afeb5d5806bfcfe43eb3de65f4e8bb09df50224ab6e67 [2022-11-19 07:19:54,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:19:54,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:19:54,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:19:54,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:19:54,113 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:19:54,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.7.prop1-back-serstep.c [2022-11-19 07:19:54,193 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/data/5c4575fc2/9ea99be783cd4c5da32fbfdc0e663f13/FLAG0ecf41487 [2022-11-19 07:19:55,303 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:19:55,304 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.7.prop1-back-serstep.c [2022-11-19 07:19:55,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/data/5c4575fc2/9ea99be783cd4c5da32fbfdc0e663f13/FLAG0ecf41487 [2022-11-19 07:19:55,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/data/5c4575fc2/9ea99be783cd4c5da32fbfdc0e663f13 [2022-11-19 07:19:55,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:19:55,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:19:55,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:19:55,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:19:55,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:19:55,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:19:55" (1/1) ... [2022-11-19 07:19:55,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0cd392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:55, skipping insertion in model container [2022-11-19 07:19:55,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:19:55" (1/1) ... [2022-11-19 07:19:55,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:19:55,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:19:56,356 WARN L234 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_03917977-e84e-49cd-8dea-f08bc43500d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.7.prop1-back-serstep.c[1014,1027] [2022-11-19 07:19:57,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:19:57,860 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:19:57,874 WARN L234 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_03917977-e84e-49cd-8dea-f08bc43500d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.7.prop1-back-serstep.c[1014,1027] [2022-11-19 07:19:59,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:19:59,100 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:19:59,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59 WrapperNode [2022-11-19 07:19:59,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:19:59,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:19:59,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:19:59,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:19:59,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:19:59,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:00,850 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28875 [2022-11-19 07:20:00,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:20:00,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:20:00,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:20:00,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:20:00,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:00,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:01,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:01,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:02,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:02,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:02,380 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:02,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:02,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:20:02,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:20:02,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:20:02,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:20:02,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:59" (1/1) ... [2022-11-19 07:20:02,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:20:02,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:02,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:20:02,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03917977-e84e-49cd-8dea-f08bc43500d5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:20:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:20:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:20:05,324 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:20:05,326 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:21:04,934 INFO L276 CfgBuilder]: Performing block encoding