./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh --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 32bit --witnessprinter.graph.data.programhash 0cc4860b4f5a0d0365cbcd156b11008fe087fa6dc867cdd4b4d117ba6b8a4a03 --- 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-2329fc7 [2022-12-14 13:16:08,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:16:08,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:16:08,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:16:08,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:16:08,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:16:08,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:16:08,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:16:08,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:16:08,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:16:08,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:16:08,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:16:08,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:16:08,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:16:08,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:16:08,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:16:08,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:16:08,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:16:08,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:16:08,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:16:08,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:16:08,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:16:08,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:16:08,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:16:08,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:16:08,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:16:08,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:16:08,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:16:08,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:16:08,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:16:08,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:16:08,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:16:08,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:16:08,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:16:08,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:16:08,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:16:08,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:16:08,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:16:08,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:16:08,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:16:08,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:16:08,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:16:08,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:16:08,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:16:08,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:16:08,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:16:08,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:16:08,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:16:08,427 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:16:08,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:16:08,427 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:16:08,427 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:16:08,427 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:16:08,428 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:16:08,428 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:16:08,428 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:16:08,428 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:16:08,428 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:16:08,428 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:16:08,428 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:16:08,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:16:08,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:16:08,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:16:08,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:16:08,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:16:08,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:16:08,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:16:08,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:16:08,429 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:16:08,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:16:08,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:16:08,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:16:08,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:16:08,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:16:08,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:16:08,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:16:08,430 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:16:08,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:16:08,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:16:08,431 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:16:08,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:16:08,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:16:08,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:16:08,431 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_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc4860b4f5a0d0365cbcd156b11008fe087fa6dc867cdd4b4d117ba6b8a4a03 [2022-12-14 13:16:08,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:16:08,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:16:08,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:16:08,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:16:08,644 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:16:08,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c [2022-12-14 13:16:11,275 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:16:11,601 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:16:11,602 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c [2022-12-14 13:16:11,619 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/data/1e6d323eb/912c99ab499e4227ae3afbc51a9404f3/FLAG635891458 [2022-12-14 13:16:11,630 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/data/1e6d323eb/912c99ab499e4227ae3afbc51a9404f3 [2022-12-14 13:16:11,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:16:11,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:16:11,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:16:11,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:16:11,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:16:11,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:16:11" (1/1) ... [2022-12-14 13:16:11,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6addda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:11, skipping insertion in model container [2022-12-14 13:16:11,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:16:11" (1/1) ... [2022-12-14 13:16:11,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:16:11,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:16:11,875 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_efeb9e13-e0ad-48c9-a9bc-3de778198963/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c[2216,2229] [2022-12-14 13:16:12,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:16:12,445 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:16:12,464 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_efeb9e13-e0ad-48c9-a9bc-3de778198963/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c[2216,2229] [2022-12-14 13:16:12,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:16:12,753 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:16:12,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12 WrapperNode [2022-12-14 13:16:12,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:16:12,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:16:12,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:16:12,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:16:12,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:12,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,126 INFO L138 Inliner]: procedures = 101, calls = 6643, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 21156 [2022-12-14 13:16:13,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:16:13,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:16:13,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:16:13,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:16:13,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:16:13,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:16:13,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:16:13,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:16:13,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (1/1) ... [2022-12-14 13:16:13,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:16:13,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:16:13,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:16:13,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efeb9e13-e0ad-48c9-a9bc-3de778198963/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:16:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-12-14 13:16:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-12-14 13:16:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-12-14 13:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-12-14 13:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 13:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 13:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-12-14 13:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-12-14 13:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-12-14 13:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-12-14 13:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-12-14 13:16:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:16:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 13:16:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 13:16:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-12-14 13:16:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-12-14 13:16:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-12-14 13:16:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-12-14 13:16:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-12-14 13:16:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-12-14 13:16:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-12-14 13:16:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-12-14 13:16:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-12-14 13:16:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-12-14 13:16:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 13:16:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 13:16:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:16:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 13:16:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 13:16:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-12-14 13:16:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-12-14 13:16:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-12-14 13:16:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-12-14 13:16:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-12-14 13:16:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-12-14 13:16:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 13:16:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 13:16:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-12-14 13:16:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-12-14 13:16:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 13:16:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 13:16:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-12-14 13:16:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-12-14 13:16:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-12-14 13:16:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-12-14 13:16:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 13:16:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 13:16:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-12-14 13:16:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-12-14 13:16:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-12-14 13:16:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-12-14 13:16:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-12-14 13:16:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-12-14 13:16:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-14 13:16:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-14 13:16:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-12-14 13:16:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-12-14 13:16:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-12-14 13:16:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-12-14 13:16:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-12-14 13:16:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-12-14 13:16:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-12-14 13:16:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-12-14 13:16:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-12-14 13:16:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-12-14 13:16:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-12-14 13:16:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-12-14 13:16:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-12-14 13:16:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-12-14 13:16:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-14 13:16:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-14 13:16:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:16:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-12-14 13:16:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-12-14 13:16:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:16:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:16:14,427 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:16:14,429 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:17:27,642 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:23:18,840 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:23:18,840 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 13:23:18,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:23:18 BoogieIcfgContainer [2022-12-14 13:23:18,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:23:18,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:23:18,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:23:18,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:23:18,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:16:11" (1/3) ... [2022-12-14 13:23:18,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3465eb1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:23:18, skipping insertion in model container [2022-12-14 13:23:18,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:12" (2/3) ... [2022-12-14 13:23:18,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3465eb1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:23:18, skipping insertion in model container [2022-12-14 13:23:18,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:23:18" (3/3) ... [2022-12-14 13:23:18,849 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.2-1.c [2022-12-14 13:23:18,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:23:18,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:23:18,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:23:18,917 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;@35146d5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:23:18,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:23:18,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 698 states have (on average 1.3739255014326648) internal successors, (959), 722 states have internal predecessors, (959), 340 states have call successors, (340), 43 states have call predecessors, (340), 43 states have return successors, (340), 330 states have call predecessors, (340), 340 states have call successors, (340) [2022-12-14 13:23:18,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 13:23:18,948 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:23:18,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:23:18,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:23:18,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:23:18,953 INFO L85 PathProgramCache]: Analyzing trace with hash 531990149, now seen corresponding path program 1 times [2022-12-14 13:23:18,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:23:18,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758394135] [2022-12-14 13:23:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:23:18,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms