./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.2.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_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/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_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/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_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/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 0019b8b0b5ee30c4fc49525a99e8494bfaf43c6a0e363fe20c69c13f3516415f --- 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 07:42:37,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:42:37,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:42:37,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:42:37,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:42:37,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:42:37,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:42:37,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:42:37,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:42:37,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:42:37,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:42:37,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:42:37,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:42:37,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:42:37,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:42:37,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:42:37,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:42:37,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:42:37,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:42:37,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:42:37,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:42:37,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:42:37,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:42:37,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:42:37,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:42:37,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:42:37,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:42:37,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:42:37,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:42:37,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:42:37,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:42:37,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:42:37,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:42:37,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:42:37,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:42:37,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:42:37,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:42:37,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:42:37,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:42:37,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:42:37,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:42:37,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:42:37,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:42:37,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:42:37,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:42:37,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:42:37,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:42:37,684 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:42:37,684 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:42:37,684 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:42:37,684 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:42:37,685 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:42:37,686 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:42:37,686 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:42:37,686 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:42:37,687 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:42:37,687 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:42:37,687 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:42:37,687 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:42:37,688 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:42:37,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:42:37,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:42:37,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:42:37,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:42:37,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:42:37,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:42:37,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:42:37,690 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:42:37,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:42:37,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:42:37,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:42:37,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:42:37,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:42:37,693 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:42:37,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:42:37,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:42:37,694 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:42:37,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:42:37,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:42:37,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:42:37,695 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_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0019b8b0b5ee30c4fc49525a99e8494bfaf43c6a0e363fe20c69c13f3516415f [2022-11-19 07:42:38,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:42:38,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:42:38,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:42:38,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:42:38,122 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:42:38,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.2.prop1-back-serstep.c [2022-11-19 07:42:38,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/data/bf58253e0/ebf38fd757e24235911a88d463e54934/FLAGd098bf0ff [2022-11-19 07:42:39,126 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:42:39,128 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.2.prop1-back-serstep.c [2022-11-19 07:42:39,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/data/bf58253e0/ebf38fd757e24235911a88d463e54934/FLAGd098bf0ff [2022-11-19 07:42:39,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/data/bf58253e0/ebf38fd757e24235911a88d463e54934 [2022-11-19 07:42:39,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:42:39,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:42:39,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:42:39,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:42:39,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:42:39,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:39" (1/1) ... [2022-11-19 07:42:39,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5017179f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39, skipping insertion in model container [2022-11-19 07:42:39,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:39" (1/1) ... [2022-11-19 07:42:39,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:42:39,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:42:40,247 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_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.2.prop1-back-serstep.c[1014,1027] [2022-11-19 07:42:41,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:42:41,432 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:42:41,445 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_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.2.prop1-back-serstep.c[1014,1027] [2022-11-19 07:42:42,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:42:42,161 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:42:42,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42 WrapperNode [2022-11-19 07:42:42,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:42:42,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:42:42,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:42:42,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:42:42,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:42,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:43,372 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14568 [2022-11-19 07:42:43,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:42:43,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:42:43,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:42:43,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:42:43,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:43,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:43,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:43,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:44,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:44,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:44,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:44,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:44,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:42:44,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:42:44,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:42:44,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:42:44,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:42" (1/1) ... [2022-11-19 07:42:44,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:42:44,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:44,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:42:44,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59da6b2e-fbe9-48a2-a4fe-8cad00903b94/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:42:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:42:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:42:46,244 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:42:46,247 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:43:08,865 INFO L276 CfgBuilder]: Performing block encoding