./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 38b53e6a 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_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/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_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 17:03:59,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:03:59,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:03:59,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:03:59,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:03:59,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:03:59,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:03:59,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:03:59,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:03:59,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:03:59,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:03:59,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:03:59,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:03:59,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:03:59,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:03:59,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:03:59,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:03:59,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:03:59,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:03:59,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:03:59,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:03:59,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:03:59,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:03:59,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:03:59,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:03:59,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:03:59,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:03:59,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:03:59,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:03:59,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:03:59,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:03:59,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:03:59,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:03:59,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:03:59,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:03:59,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:03:59,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:03:59,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:03:59,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:03:59,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:03:59,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:03:59,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:03:59,860 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:03:59,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:03:59,861 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:03:59,861 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:03:59,862 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:03:59,862 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:03:59,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:03:59,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:03:59,864 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:03:59,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:03:59,865 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:03:59,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:03:59,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:03:59,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:03:59,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:03:59,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:03:59,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:03:59,867 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:03:59,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:03:59,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:03:59,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:03:59,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:03:59,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:03:59,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:03:59,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:03:59,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:03:59,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:03:59,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:03:59,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:03:59,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:03:59,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:03:59,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:03:59,872 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:03:59,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:03:59,873 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2022-11-25 17:04:00,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:04:00,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:04:00,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:04:00,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:04:00,245 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:04:00,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-11-25 17:04:03,687 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:04:04,212 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:04:04,214 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-11-25 17:04:04,247 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/data/85c087434/70c0509b212e42659eb4dd6666616f56/FLAG7828f4ce4 [2022-11-25 17:04:04,269 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/data/85c087434/70c0509b212e42659eb4dd6666616f56 [2022-11-25 17:04:04,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:04:04,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:04:04,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:04:04,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:04:04,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:04:04,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:04:04" (1/1) ... [2022-11-25 17:04:04,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b9918b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:04, skipping insertion in model container [2022-11-25 17:04:04,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:04:04" (1/1) ... [2022-11-25 17:04:04,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:04:04,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:04:04,688 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_241b39d4-c0b4-4481-9869-344aa9defd28/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2022-11-25 17:04:05,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:04:05,597 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:04:05,619 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_241b39d4-c0b4-4481-9869-344aa9defd28/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2022-11-25 17:04:05,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:04:05,968 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:04:05,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05 WrapperNode [2022-11-25 17:04:05,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:04:05,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:04:05,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:04:05,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:04:05,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,372 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-11-25 17:04:06,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:04:06,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:04:06,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:04:06,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:04:06,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,839 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:04:06,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:04:06,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:04:06,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:04:06,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (1/1) ... [2022-11-25 17:04:06,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:04:06,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:06,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:04:06,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241b39d4-c0b4-4481-9869-344aa9defd28/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:04:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-25 17:04:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-25 17:04:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-25 17:04:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-25 17:04:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:04:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 17:04:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 17:04:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 17:04:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 17:04:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-25 17:04:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-25 17:04:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-25 17:04:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-25 17:04:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-25 17:04:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-25 17:04:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-25 17:04:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-25 17:04:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-25 17:04:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-25 17:04:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 17:04:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 17:04:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:04:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 17:04:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 17:04:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-25 17:04:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-25 17:04:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-25 17:04:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-25 17:04:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-25 17:04:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-25 17:04:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-25 17:04:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-25 17:04:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-25 17:04:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-25 17:04:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 17:04:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 17:04:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:04:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 17:04:07,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 17:04:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-25 17:04:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-25 17:04:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-25 17:04:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-25 17:04:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-25 17:04:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-25 17:04:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 17:04:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 17:04:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-25 17:04:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-25 17:04:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 17:04:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 17:04:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-25 17:04:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-25 17:04:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-25 17:04:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-25 17:04:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-25 17:04:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-25 17:04:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-25 17:04:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-25 17:04:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-25 17:04:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-25 17:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-25 17:04:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-25 17:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 17:04:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 17:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-25 17:04:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-25 17:04:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-25 17:04:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-25 17:04:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-25 17:04:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-25 17:04:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-25 17:04:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-25 17:04:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-25 17:04:07,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-25 17:04:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-25 17:04:07,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-25 17:04:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-25 17:04:07,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-25 17:04:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-25 17:04:07,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-25 17:04:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 17:04:07,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 17:04:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-25 17:04:07,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-25 17:04:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-25 17:04:07,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-25 17:04:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-25 17:04:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-25 17:04:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:04:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-25 17:04:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-25 17:04:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:04:07,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:04:07,857 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:04:07,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:04:28,629 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:04:28,653 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:04:28,653 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 17:04:28,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:28 BoogieIcfgContainer [2022-11-25 17:04:28,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:04:28,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:04:28,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:04:28,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:04:28,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:04:04" (1/3) ... [2022-11-25 17:04:28,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423b135b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:04:28, skipping insertion in model container [2022-11-25 17:04:28,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:05" (2/3) ... [2022-11-25 17:04:28,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423b135b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:04:28, skipping insertion in model container [2022-11-25 17:04:28,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:28" (3/3) ... [2022-11-25 17:04:28,671 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2022-11-25 17:04:28,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:04:28,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:04:28,833 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:04:28,842 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;@558051c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:04:28,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:04:28,857 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) [2022-11-25 17:04:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 17:04:28,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:28,898 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] [2022-11-25 17:04:28,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:04:28,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:28,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-11-25 17:04:28,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:28,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775443651] [2022-11-25 17:04:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:28,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms