./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/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_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/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_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/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 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- 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 11:22:51,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:22:51,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:22:51,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:22:51,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:22:51,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:22:51,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:22:51,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:22:51,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:22:51,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:22:51,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:22:51,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:22:51,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:22:51,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:22:51,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:22:51,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:22:51,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:22:51,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:22:51,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:22:51,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:22:51,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:22:51,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:22:51,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:22:51,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:22:51,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:22:51,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:22:51,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:22:51,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:22:51,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:22:51,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:22:51,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:22:51,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:22:51,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:22:51,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:22:51,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:22:51,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:22:51,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:22:51,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:22:51,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:22:51,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:22:51,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:22:51,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:22:51,860 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:22:51,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:22:51,861 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:22:51,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:22:51,862 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:22:51,863 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:22:51,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:22:51,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:22:51,864 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:22:51,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:22:51,865 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:22:51,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:22:51,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:22:51,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:22:51,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:22:51,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:22:51,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:22:51,867 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:22:51,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:22:51,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:22:51,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:22:51,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:22:51,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:22:51,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:22:51,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:22:51,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:22:51,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:22:51,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:22:51,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:22:51,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:22:51,870 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:22:51,870 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:22:51,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:22:51,871 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_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2022-11-20 11:22:52,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:22:52,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:22:52,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:22:52,209 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:22:52,210 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:22:52,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-11-20 11:22:55,240 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:22:55,779 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:22:55,780 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-11-20 11:22:55,815 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/data/cc537c7ec/4019624368bd44e396451d7506605c57/FLAG3aa3a8281 [2022-11-20 11:22:55,864 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/data/cc537c7ec/4019624368bd44e396451d7506605c57 [2022-11-20 11:22:55,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:22:55,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:22:55,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:22:55,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:22:55,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:22:55,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:22:55" (1/1) ... [2022-11-20 11:22:55,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25311ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:55, skipping insertion in model container [2022-11-20 11:22:55,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:22:55" (1/1) ... [2022-11-20 11:22:55,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:22:55,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:22:56,274 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_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2022-11-20 11:22:56,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:22:56,949 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:22:56,965 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_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2022-11-20 11:22:57,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:22:57,310 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:22:57,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57 WrapperNode [2022-11-20 11:22:57,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:22:57,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:22:57,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:22:57,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:22:57,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,560 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-11-20 11:22:57,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:22:57,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:22:57,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:22:57,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:22:57,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:57,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:58,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:22:58,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:22:58,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:22:58,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:22:58,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (1/1) ... [2022-11-20 11:22:58,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:22:58,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:22:58,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:22:58,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a8c04c-b2d6-4d1b-b9c9-3b8eaab39d5a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:22:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-20 11:22:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-20 11:22:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-20 11:22:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-20 11:22:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:22:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 11:22:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 11:22:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-20 11:22:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-20 11:22:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-20 11:22:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-20 11:22:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-20 11:22:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-20 11:22:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-20 11:22:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-20 11:22:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-20 11:22:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-20 11:22:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-20 11:22:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-20 11:22:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 11:22:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 11:22:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:22:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-20 11:22:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-20 11:22:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-20 11:22:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-20 11:22:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-20 11:22:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-20 11:22:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-20 11:22:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-20 11:22:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-20 11:22:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-20 11:22:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-20 11:22:58,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-20 11:22:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-20 11:22:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-20 11:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-20 11:22:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-20 11:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-20 11:22:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-20 11:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-20 11:22:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-20 11:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-20 11:22:58,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-20 11:22:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-20 11:22:58,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-20 11:22:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-20 11:22:58,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-20 11:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-20 11:22:58,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-20 11:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-20 11:22:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-20 11:22:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-20 11:22:58,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-20 11:22:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-20 11:22:58,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-20 11:22:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-20 11:22:58,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-20 11:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-20 11:22:58,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-20 11:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-20 11:22:58,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-20 11:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 11:22:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 11:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-20 11:22:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-20 11:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-20 11:22:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-20 11:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-20 11:22:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-20 11:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-20 11:22:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-20 11:22:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-20 11:22:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-20 11:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-20 11:22:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-20 11:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-20 11:22:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-20 11:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-20 11:22:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-20 11:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-20 11:22:58,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-20 11:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-20 11:22:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-20 11:22:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-20 11:22:58,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-20 11:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-20 11:22:58,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-20 11:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-20 11:22:58,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-20 11:22:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:22:58,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:22:58,967 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:22:58,970 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:23:18,402 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:23:18,427 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:23:18,427 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 11:23:18,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:18 BoogieIcfgContainer [2022-11-20 11:23:18,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:23:18,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:23:18,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:23:18,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:23:18,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:22:55" (1/3) ... [2022-11-20 11:23:18,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5550ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:23:18, skipping insertion in model container [2022-11-20 11:23:18,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:57" (2/3) ... [2022-11-20 11:23:18,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5550ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:23:18, skipping insertion in model container [2022-11-20 11:23:18,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:18" (3/3) ... [2022-11-20 11:23:18,443 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2022-11-20 11:23:18,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:23:18,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:23:18,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:23:18,589 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;@419e5272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:23:18,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:23:18,602 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) [2022-11-20 11:23:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-20 11:23:18,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:18,625 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 11:23:18,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:18,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:18,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-11-20 11:23:18,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:23:18,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446692922] [2022-11-20 11:23:18,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:18,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms