./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.4.prop2-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.4.prop2-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI --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 3ad44a99a4f3ff559b72d1c0a2b824afbfab45972b3b832dd20174df6354d3dc --- 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-5e519f3 [2022-11-03 03:50:39,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:50:39,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:50:39,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:50:39,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:50:39,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:50:39,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:50:39,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:50:39,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:50:39,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:50:39,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:50:39,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:50:39,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:50:39,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:50:39,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:50:39,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:50:39,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:50:39,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:50:39,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:50:39,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:50:39,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:50:39,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:50:39,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:50:39,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:50:39,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:50:39,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:50:39,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:50:39,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:50:39,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:50:39,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:50:39,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:50:39,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:50:39,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:50:39,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:50:39,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:50:39,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:50:39,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:50:39,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:50:39,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:50:39,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:50:39,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:50:39,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:50:39,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:50:39,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:50:39,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:50:39,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:50:39,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:50:39,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:50:39,433 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:50:39,433 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:50:39,433 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:50:39,433 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:50:39,433 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:50:39,434 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:50:39,434 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:50:39,434 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:50:39,434 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:50:39,434 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:50:39,435 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:50:39,435 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:50:39,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:50:39,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:50:39,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:50:39,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:50:39,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:50:39,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:50:39,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:50:39,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:50:39,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:50:39,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:50:39,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:50:39,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:50:39,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:50:39,438 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:50:39,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:50:39,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:50:39,438 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:50:39,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:50:39,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:50:39,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:50:39,439 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_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ad44a99a4f3ff559b72d1c0a2b824afbfab45972b3b832dd20174df6354d3dc [2022-11-03 03:50:39,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:50:39,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:50:39,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:50:39,859 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:50:39,860 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:50:39,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.4.prop2-func-interl.c [2022-11-03 03:50:39,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/data/222175dda/b7d26d9cf024452ab33f989317c77b00/FLAGbf877677b [2022-11-03 03:50:40,885 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:50:40,885 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.4.prop2-func-interl.c [2022-11-03 03:50:40,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/data/222175dda/b7d26d9cf024452ab33f989317c77b00/FLAGbf877677b [2022-11-03 03:50:41,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/data/222175dda/b7d26d9cf024452ab33f989317c77b00 [2022-11-03 03:50:41,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:50:41,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:50:41,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:50:41,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:50:41,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:50:41,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:50:41" (1/1) ... [2022-11-03 03:50:41,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fccd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:41, skipping insertion in model container [2022-11-03 03:50:41,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:50:41" (1/1) ... [2022-11-03 03:50:41,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:50:41,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:50:41,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.4.prop2-func-interl.c[1014,1027] [2022-11-03 03:50:42,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:50:42,735 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:50:42,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.4.prop2-func-interl.c[1014,1027] [2022-11-03 03:50:43,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:50:43,207 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:50:43,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43 WrapperNode [2022-11-03 03:50:43,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:50:43,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:50:43,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:50:43,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:50:43,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:43,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,057 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5561 [2022-11-03 03:50:44,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:50:44,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:50:44,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:50:44,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:50:44,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,736 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:50:44,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:50:44,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:50:44,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:50:44,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:43" (1/1) ... [2022-11-03 03:50:44,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:50:45,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:50:45,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:50:45,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b3014d-9a2c-4d65-9a54-511e7f39eaa1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:50:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:50:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:50:46,083 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:50:46,086 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:54:20,141 INFO L276 CfgBuilder]: Performing block encoding