./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro --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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- 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-8393723 [2022-11-18 20:42:47,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:42:47,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:42:47,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:42:47,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:42:47,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:42:47,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:42:47,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:42:47,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:42:47,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:42:47,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:42:47,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:42:47,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:42:47,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:42:47,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:42:47,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:42:47,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:42:47,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:42:47,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:42:47,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:42:47,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:42:47,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:42:47,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:42:47,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:42:47,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:42:47,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:42:47,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:42:47,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:42:47,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:42:47,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:42:47,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:42:47,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:42:47,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:42:47,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:42:47,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:42:47,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:42:47,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:42:47,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:42:47,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:42:47,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:42:47,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:42:47,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:42:47,777 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:42:47,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:42:47,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:42:47,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:42:47,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:42:47,783 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:42:47,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:42:47,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:42:47,785 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:42:47,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:42:47,786 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:42:47,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:42:47,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:42:47,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:42:47,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:42:47,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:42:47,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:42:47,788 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:42:47,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:42:47,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:42:47,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:42:47,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:42:47,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:42:47,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:42:47,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:42:47,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:42:47,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:42:47,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:42:47,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:42:47,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:42:47,792 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:42:47,793 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:42:47,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:42:47,793 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_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2022-11-18 20:42:48,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:42:48,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:42:48,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:42:48,159 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:42:48,160 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:42:48,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-11-18 20:42:48,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/data/ce05404ec/52d6a516f59449539598904fde36723a/FLAG477ac62ec [2022-11-18 20:42:49,191 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:42:49,192 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-11-18 20:42:49,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/data/ce05404ec/52d6a516f59449539598904fde36723a/FLAG477ac62ec [2022-11-18 20:42:49,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/data/ce05404ec/52d6a516f59449539598904fde36723a [2022-11-18 20:42:49,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:42:49,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:42:49,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:42:49,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:42:49,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:42:49,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:42:49" (1/1) ... [2022-11-18 20:42:49,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b72273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:49, skipping insertion in model container [2022-11-18 20:42:49,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:42:49" (1/1) ... [2022-11-18 20:42:49,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:42:49,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:42:50,183 WARN L234 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_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-11-18 20:42:50,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:42:51,001 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:42:51,019 WARN L234 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_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-11-18 20:42:51,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:42:51,474 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:42:51,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51 WrapperNode [2022-11-18 20:42:51,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:42:51,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:42:51,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:42:51,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:42:51,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:51,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:51,823 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2022-11-18 20:42:51,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:42:51,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:42:51,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:42:51,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:42:51,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:51,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:51,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:51,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:52,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:52,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:52,216 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:52,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:52,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:42:52,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:42:52,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:42:52,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:42:52,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (1/1) ... [2022-11-18 20:42:52,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:42:52,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:42:52,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:42:52,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df8ed04-ad2a-45e5-8cd6-7d75b8269780/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:42:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-18 20:42:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-18 20:42:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-18 20:42:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-18 20:42:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:42:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 20:42:52,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 20:42:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-18 20:42:52,418 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-18 20:42:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-18 20:42:52,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-18 20:42:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-18 20:42:52,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-18 20:42:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-18 20:42:52,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-18 20:42:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-18 20:42:52,419 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-18 20:42:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-18 20:42:52,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-18 20:42:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 20:42:52,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 20:42:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:42:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-18 20:42:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-18 20:42:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-18 20:42:52,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-18 20:42:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-18 20:42:52,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-18 20:42:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-18 20:42:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-18 20:42:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-18 20:42:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-18 20:42:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-18 20:42:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-18 20:42:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-18 20:42:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-18 20:42:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:42:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-18 20:42:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-18 20:42:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-18 20:42:52,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-18 20:42:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-18 20:42:52,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-18 20:42:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-18 20:42:52,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-18 20:42:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-18 20:42:52,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-18 20:42:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-18 20:42:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-18 20:42:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-18 20:42:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-18 20:42:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-18 20:42:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-18 20:42:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-18 20:42:52,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-18 20:42:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-18 20:42:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-18 20:42:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-18 20:42:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-18 20:42:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-18 20:42:52,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-18 20:42:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-18 20:42:52,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-18 20:42:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 20:42:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 20:42:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-18 20:42:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-18 20:42:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-18 20:42:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-18 20:42:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-18 20:42:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-18 20:42:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-18 20:42:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-18 20:42:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-18 20:42:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-18 20:42:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-18 20:42:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-18 20:42:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-18 20:42:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-18 20:42:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-18 20:42:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-18 20:42:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-18 20:42:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-18 20:42:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-18 20:42:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-18 20:42:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-18 20:42:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-18 20:42:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-18 20:42:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-18 20:42:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-18 20:42:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-18 20:42:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:42:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-18 20:42:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-18 20:42:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:42:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:42:53,315 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:42:53,318 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:43:10,940 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:43:10,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:43:10,975 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:43:10,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:43:10 BoogieIcfgContainer [2022-11-18 20:43:10,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:43:10,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:43:10,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:43:10,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:43:10,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:42:49" (1/3) ... [2022-11-18 20:43:10,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2660bb2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:43:10, skipping insertion in model container [2022-11-18 20:43:10,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:42:51" (2/3) ... [2022-11-18 20:43:10,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2660bb2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:43:10, skipping insertion in model container [2022-11-18 20:43:10,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:43:10" (3/3) ... [2022-11-18 20:43:10,996 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2022-11-18 20:43:11,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:43:11,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:43:11,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:43:11,175 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;@293763f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:43:11,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:43:11,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2022-11-18 20:43:11,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-18 20:43:11,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:43:11,220 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] [2022-11-18 20:43:11,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:43:11,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:43:11,228 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2022-11-18 20:43:11,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:43:11,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496243589] [2022-11-18 20:43:11,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:43:11,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms