./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN --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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- 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-6b4ec56 [2022-11-20 12:22:43,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:22:43,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:22:43,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:22:43,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:22:43,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:22:43,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:22:43,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:22:43,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:22:43,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:22:43,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:22:43,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:22:43,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:22:43,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:22:43,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:22:43,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:22:43,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:22:43,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:22:43,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:22:43,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:22:43,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:22:43,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:22:43,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:22:43,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:22:43,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:22:43,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:22:43,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:22:43,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:22:43,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:22:43,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:22:43,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:22:43,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:22:43,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:22:43,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:22:43,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:22:43,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:22:43,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:22:43,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:22:43,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:22:43,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:22:43,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:22:43,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:22:43,895 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:22:43,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:22:43,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:22:43,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:22:43,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:22:43,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:22:43,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:22:43,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:22:43,900 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:22:43,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:22:43,901 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:22:43,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:22:43,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:22:43,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:22:43,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:22:43,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:22:43,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:22:43,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:22:43,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:22:43,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:22:43,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:22:43,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:22:43,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:22:43,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:22:43,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:22:43,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:22:43,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:22:43,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:22:43,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:22:43,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:22:43,908 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:22:43,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:22:43,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:22:43,908 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_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-11-20 12:22:44,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:22:44,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:22:44,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:22:44,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:22:44,352 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:22:44,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-20 12:22:47,738 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:22:48,322 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:22:48,322 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-20 12:22:48,362 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/data/70e2a6b07/5dbf9788ed094102bd51a5735c440c45/FLAG767d492e7 [2022-11-20 12:22:48,387 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/data/70e2a6b07/5dbf9788ed094102bd51a5735c440c45 [2022-11-20 12:22:48,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:22:48,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:22:48,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:22:48,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:22:48,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:22:48,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:22:48" (1/1) ... [2022-11-20 12:22:48,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2c781b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:48, skipping insertion in model container [2022-11-20 12:22:48,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:22:48" (1/1) ... [2022-11-20 12:22:48,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:22:48,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:22:48,810 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_72d62866-9bd5-4472-a062-7d3b7017f50e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-20 12:22:49,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:22:49,656 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:22:49,675 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_72d62866-9bd5-4472-a062-7d3b7017f50e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-20 12:22:50,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:22:50,115 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:22:50,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50 WrapperNode [2022-11-20 12:22:50,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:22:50,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:22:50,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:22:50,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:22:50,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:50,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:50,479 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-11-20 12:22:50,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:22:50,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:22:50,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:22:50,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:22:50,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:50,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:50,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:50,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:50,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:50,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:50,995 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:51,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:51,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:22:51,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:22:51,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:22:51,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:22:51,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (1/1) ... [2022-11-20 12:22:51,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:22:51,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:51,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:51,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d62866-9bd5-4472-a062-7d3b7017f50e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:22:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-20 12:22:51,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-20 12:22:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-20 12:22:51,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-20 12:22:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:22:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 12:22:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 12:22:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-20 12:22:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-20 12:22:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-20 12:22:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-20 12:22:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-20 12:22:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-20 12:22:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-20 12:22:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-20 12:22:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-20 12:22:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-20 12:22:51,166 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-20 12:22:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-20 12:22:51,166 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 12:22:51,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 12:22:51,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:22:51,167 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-20 12:22:51,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-20 12:22:51,168 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-20 12:22:51,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-20 12:22:51,168 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-20 12:22:51,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-20 12:22:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-20 12:22:51,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-20 12:22:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-20 12:22:51,170 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-20 12:22:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-20 12:22:51,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-20 12:22:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-20 12:22:51,172 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-20 12:22:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:22:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-20 12:22:51,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-20 12:22:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-20 12:22:51,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-20 12:22:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-20 12:22:51,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-20 12:22:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-20 12:22:51,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-20 12:22:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-20 12:22:51,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-20 12:22:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-20 12:22:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-20 12:22:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-20 12:22:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-20 12:22:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-20 12:22:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-20 12:22:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-20 12:22:51,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-20 12:22:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-20 12:22:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-20 12:22:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-20 12:22:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-20 12:22:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-20 12:22:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-20 12:22:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-20 12:22:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-20 12:22:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 12:22:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 12:22:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-20 12:22:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-20 12:22:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-20 12:22:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-20 12:22:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-20 12:22:51,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-20 12:22:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-20 12:22:51,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-20 12:22:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-20 12:22:51,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-20 12:22:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-20 12:22:51,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-20 12:22:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-20 12:22:51,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-20 12:22:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-20 12:22:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-20 12:22:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-20 12:22:51,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-20 12:22:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-20 12:22:51,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-20 12:22:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-20 12:22:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-20 12:22:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-20 12:22:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-20 12:22:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:22:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-20 12:22:51,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-20 12:22:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:22:51,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:22:51,920 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:22:51,924 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:23:09,000 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:23:09,029 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:23:09,030 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 12:23:09,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:23:09 BoogieIcfgContainer [2022-11-20 12:23:09,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:23:09,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:23:09,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:23:09,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:23:09,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:22:48" (1/3) ... [2022-11-20 12:23:09,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1939e755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:23:09, skipping insertion in model container [2022-11-20 12:23:09,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:50" (2/3) ... [2022-11-20 12:23:09,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1939e755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:23:09, skipping insertion in model container [2022-11-20 12:23:09,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:23:09" (3/3) ... [2022-11-20 12:23:09,045 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-11-20 12:23:09,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:23:09,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:23:09,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:23:09,189 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a945c61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:23:09,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:23:09,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-11-20 12:23:09,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-20 12:23:09,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:23:09,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:23:09,240 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:23:09,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:23:09,246 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-11-20 12:23:09,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:23:09,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837305324] [2022-11-20 12:23:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:23:09,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms