./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.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_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/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_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/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_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:50:32,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:50:32,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:50:32,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:50:32,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:50:32,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:50:32,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:50:32,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:50:32,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:50:32,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:50:32,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:50:32,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:50:32,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:50:32,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:50:32,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:50:32,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:50:32,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:50:32,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:50:32,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:50:32,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:50:32,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:50:32,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:50:32,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:50:32,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:50:32,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:50:32,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:50:32,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:50:32,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:50:32,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:50:32,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:50:32,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:50:32,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:50:32,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:50:32,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:50:32,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:50:32,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:50:32,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:50:32,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:50:32,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:50:32,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:50:32,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:50:32,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:50:32,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:50:32,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:50:32,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:50:32,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:50:32,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:50:32,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:50:32,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:50:32,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:50:32,550 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:50:32,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:50:32,551 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:50:32,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:50:32,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:50:32,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:50:32,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:50:32,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:50:32,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:50:32,552 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:50:32,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:50:32,552 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:50:32,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:50:32,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:50:32,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:50:32,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:50:32,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:50:32,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:50:32,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:50:32,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:50:32,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:50:32,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:50:32,555 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:50:32,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:50:32,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:50:32,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:50:32,555 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_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2021-12-06 22:50:32,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:50:32,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:50:32,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:50:32,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:50:32,754 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:50:32,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2021-12-06 22:50:32,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/data/7249a39b7/d6aee853bf814dd9a4cc2ca94e20bca4/FLAG11f0779d4 [2021-12-06 22:50:33,329 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:50:33,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2021-12-06 22:50:33,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/data/7249a39b7/d6aee853bf814dd9a4cc2ca94e20bca4/FLAG11f0779d4 [2021-12-06 22:50:33,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/data/7249a39b7/d6aee853bf814dd9a4cc2ca94e20bca4 [2021-12-06 22:50:33,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:50:33,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:50:33,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:50:33,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:50:33,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:50:33,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:50:33" (1/1) ... [2021-12-06 22:50:33,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@410593d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:33, skipping insertion in model container [2021-12-06 22:50:33,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:50:33" (1/1) ... [2021-12-06 22:50:33,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:50:33,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:50:34,064 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_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2021-12-06 22:50:34,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:50:34,462 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:50:34,473 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_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2021-12-06 22:50:34,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:50:34,706 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:50:34,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34 WrapperNode [2021-12-06 22:50:34,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:50:34,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:50:34,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:50:34,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:50:34,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:34,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:34,929 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-06 22:50:34,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:50:34,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:50:34,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:50:34,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:50:34,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:34,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:34,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:34,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:35,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:35,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:35,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:35,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:50:35,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:50:35,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:50:35,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:50:35,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (1/1) ... [2021-12-06 22:50:35,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:50:35,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:50:35,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:50:35,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142edcf1-5e1c-4fe3-a04c-a9e422e621f6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:50:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-06 22:50:35,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-06 22:50:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-06 22:50:35,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-06 22:50:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:50:35,227 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-06 22:50:35,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-06 22:50:35,227 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-06 22:50:35,227 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-06 22:50:35,227 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-06 22:50:35,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-06 22:50:35,227 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-06 22:50:35,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-06 22:50:35,227 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-06 22:50:35,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-06 22:50:35,228 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-06 22:50:35,228 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-06 22:50:35,228 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-06 22:50:35,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-06 22:50:35,228 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-06 22:50:35,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-06 22:50:35,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:50:35,228 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-06 22:50:35,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-06 22:50:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-06 22:50:35,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-06 22:50:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-06 22:50:35,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-06 22:50:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-06 22:50:35,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-06 22:50:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-06 22:50:35,229 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-06 22:50:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-06 22:50:35,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-06 22:50:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-06 22:50:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-06 22:50:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:50:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-06 22:50:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-06 22:50:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-06 22:50:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-06 22:50:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-06 22:50:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-06 22:50:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-06 22:50:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-06 22:50:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-06 22:50:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-06 22:50:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-06 22:50:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-06 22:50:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-06 22:50:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-06 22:50:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-06 22:50:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-06 22:50:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-06 22:50:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-06 22:50:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-06 22:50:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-06 22:50:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-06 22:50:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-06 22:50:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-06 22:50:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-06 22:50:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-06 22:50:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-06 22:50:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-06 22:50:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-06 22:50:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-06 22:50:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-06 22:50:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-06 22:50:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-06 22:50:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-06 22:50:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-06 22:50:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-06 22:50:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-06 22:50:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-06 22:50:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-06 22:50:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-06 22:50:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-06 22:50:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-06 22:50:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-06 22:50:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-06 22:50:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-06 22:50:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-06 22:50:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-06 22:50:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-06 22:50:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-06 22:50:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-06 22:50:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-06 22:50:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-06 22:50:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-06 22:50:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:50:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-06 22:50:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-06 22:50:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:50:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:50:35,589 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:50:35,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:50:51,557 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:50:51,582 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:50:51,582 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-06 22:50:51,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:50:51 BoogieIcfgContainer [2021-12-06 22:50:51,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:50:51,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:50:51,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:50:51,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:50:51,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:50:33" (1/3) ... [2021-12-06 22:50:51,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757d7ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:50:51, skipping insertion in model container [2021-12-06 22:50:51,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:50:34" (2/3) ... [2021-12-06 22:50:51,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757d7ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:50:51, skipping insertion in model container [2021-12-06 22:50:51,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:50:51" (3/3) ... [2021-12-06 22:50:51,592 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2021-12-06 22:50:51,596 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:50:51,596 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:50:51,642 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:50:51,647 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 22:50:51,647 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:50:51,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2021-12-06 22:50:51,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-06 22:50:51,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:50:51,714 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:51,715 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:50:51,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:50:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-06 22:50:51,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:50:51,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433314081] [2021-12-06 22:50:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:50:51,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms