./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8431fe38b0da32ab86eb1904cb6933c2318d796f975ab3025441ba9d9611c043 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:04:28,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:04:28,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:04:28,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:04:28,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:04:28,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:04:28,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:04:28,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:04:28,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:04:28,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:04:28,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:04:28,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:04:28,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:04:28,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:04:28,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:04:28,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:04:28,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:04:28,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:04:28,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:04:28,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:04:28,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:04:28,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:04:28,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:04:28,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:04:28,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:04:28,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:04:28,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:04:28,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:04:28,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:04:28,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:04:28,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:04:28,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:04:28,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:04:28,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:04:28,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:04:28,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:04:28,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:04:28,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:04:28,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:04:28,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:04:28,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:04:28,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 23:04:28,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:04:28,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:04:28,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:04:28,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:04:28,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:04:28,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:04:28,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:04:28,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:04:28,121 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:04:28,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:04:28,121 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:04:28,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:04:28,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:04:28,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:04:28,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:04:28,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:04:28,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:04:28,122 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:04:28,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:04:28,123 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:04:28,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:04:28,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:04:28,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:04:28,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:04:28,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:04:28,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:04:28,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:04:28,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:04:28,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:04:28,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:04:28,125 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:04:28,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:04:28,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:04:28,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:04:28,125 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_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8431fe38b0da32ab86eb1904cb6933c2318d796f975ab3025441ba9d9611c043 [2021-12-06 23:04:28,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:04:28,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:04:28,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:04:28,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:04:28,328 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:04:28,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c [2021-12-06 23:04:28,372 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/data/08cadbfbc/bb40f93308844dcab5ad2b0a17fbdd38/FLAG08621aab7 [2021-12-06 23:04:28,828 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:04:28,828 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c [2021-12-06 23:04:28,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/data/08cadbfbc/bb40f93308844dcab5ad2b0a17fbdd38/FLAG08621aab7 [2021-12-06 23:04:28,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/data/08cadbfbc/bb40f93308844dcab5ad2b0a17fbdd38 [2021-12-06 23:04:28,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:04:28,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:04:28,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:04:28,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:04:28,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:04:28,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:04:28" (1/1) ... [2021-12-06 23:04:28,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b42510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:28, skipping insertion in model container [2021-12-06 23:04:28,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:04:28" (1/1) ... [2021-12-06 23:04:28,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:04:28,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:04:29,051 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_2d2f55f1-3173-4ccf-9397-adbc39075492/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c[1974,1987] [2021-12-06 23:04:29,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:04:29,258 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:04:29,268 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_2d2f55f1-3173-4ccf-9397-adbc39075492/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M1-1.c[1974,1987] [2021-12-06 23:04:29,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:04:29,431 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:04:29,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29 WrapperNode [2021-12-06 23:04:29,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:04:29,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:04:29,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:04:29,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:04:29,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,578 INFO L137 Inliner]: procedures = 60, calls = 2058, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4373 [2021-12-06 23:04:29,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:04:29,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:04:29,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:04:29,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:04:29,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:04:29,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:04:29,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:04:29,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:04:29,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (1/1) ... [2021-12-06 23:04:29,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:04:29,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:04:29,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:04:29,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2f55f1-3173-4ccf-9397-adbc39075492/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:04:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:04:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-06 23:04:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-06 23:04:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-06 23:04:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-06 23:04:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-06 23:04:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-06 23:04:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:04:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-06 23:04:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-06 23:04:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-06 23:04:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-06 23:04:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-06 23:04:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-06 23:04:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:04:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-06 23:04:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-06 23:04:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-06 23:04:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-06 23:04:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-06 23:04:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-06 23:04:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 23:04:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 23:04:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 23:04:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 23:04:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-06 23:04:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-06 23:04:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:04:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:04:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-06 23:04:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-06 23:04:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-06 23:04:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-06 23:04:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-06 23:04:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-06 23:04:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-06 23:04:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-06 23:04:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 23:04:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 23:04:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:04:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:04:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:04:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-06 23:04:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-06 23:04:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-06 23:04:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-06 23:04:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-06 23:04:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-06 23:04:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-06 23:04:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-06 23:04:30,052 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:04:30,054 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:04:36,490 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:04:36,507 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:04:36,508 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 23:04:36,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:04:36 BoogieIcfgContainer [2021-12-06 23:04:36,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:04:36,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:04:36,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:04:36,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:04:36,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:04:28" (1/3) ... [2021-12-06 23:04:36,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4639d243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:04:36, skipping insertion in model container [2021-12-06 23:04:36,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:04:29" (2/3) ... [2021-12-06 23:04:36,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4639d243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:04:36, skipping insertion in model container [2021-12-06 23:04:36,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:04:36" (3/3) ... [2021-12-06 23:04:36,519 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M1-1.c [2021-12-06 23:04:36,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:04:36,525 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:04:36,580 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:04:36,587 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:04:36,587 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:04:36,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 1361 states, 857 states have (on average 1.2753792298716453) internal successors, (1093), 889 states have internal predecessors, (1093), 481 states have call successors, (481), 21 states have call predecessors, (481), 21 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2021-12-06 23:04:36,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2021-12-06 23:04:36,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:04:36,720 INFO L514 BasicCegarLoop]: trace histogram [137, 137, 137, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:04:36,720 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:04:36,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:04:36,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1949760813, now seen corresponding path program 1 times [2021-12-06 23:04:36,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:04:36,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527654110] [2021-12-06 23:04:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:04:36,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms