./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8 --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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- 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-2329fc7 [2022-12-13 12:50:14,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:50:14,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:50:14,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:50:14,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:50:14,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:50:14,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:50:14,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:50:14,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:50:14,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:50:14,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:50:14,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:50:14,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:50:14,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:50:14,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:50:14,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:50:14,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:50:14,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:50:14,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:50:14,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:50:14,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:50:14,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:50:14,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:50:14,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:50:14,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:50:14,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:50:14,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:50:14,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:50:14,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:50:14,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:50:14,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:50:14,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:50:14,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:50:14,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:50:14,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:50:14,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:50:14,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:50:14,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:50:14,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:50:14,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:50:14,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:50:14,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:50:14,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:50:14,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:50:14,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:50:14,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:50:14,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:50:14,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:50:14,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:50:14,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:50:14,474 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:50:14,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:50:14,475 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:50:14,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:50:14,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:50:14,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:50:14,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:50:14,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:50:14,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:50:14,476 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:50:14,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:50:14,476 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:50:14,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:50:14,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:50:14,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:50:14,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:50:14,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:50:14,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:50:14,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:50:14,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:50:14,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:50:14,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:50:14,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:50:14,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:50:14,478 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:50:14,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:50:14,479 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:50:14,479 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_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2022-12-13 12:50:14,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:50:14,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:50:14,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:50:14,689 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:50:14,690 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:50:14,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-12-13 12:50:17,170 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:50:17,473 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:50:17,473 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-12-13 12:50:17,486 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/data/542d48652/7d9e553cfa0d4b56823eb5460fd26b60/FLAG85229bbb2 [2022-12-13 12:50:17,745 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/data/542d48652/7d9e553cfa0d4b56823eb5460fd26b60 [2022-12-13 12:50:17,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:50:17,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:50:17,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:50:17,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:50:17,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:50:17,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:50:17" (1/1) ... [2022-12-13 12:50:17,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4661d2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:17, skipping insertion in model container [2022-12-13 12:50:17,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:50:17" (1/1) ... [2022-12-13 12:50:17,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:50:17,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:50:17,944 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_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-12-13 12:50:18,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:50:18,322 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:50:18,332 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_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-12-13 12:50:18,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:50:18,518 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:50:18,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18 WrapperNode [2022-12-13 12:50:18,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:50:18,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:50:18,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:50:18,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:50:18,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,659 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2022-12-13 12:50:18,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:50:18,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:50:18,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:50:18,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:50:18,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,800 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:50:18,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:50:18,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:50:18,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:50:18,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (1/1) ... [2022-12-13 12:50:18,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:50:18,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:50:18,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:50:18,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23419f7-f3c7-475d-b32b-e159c7d0f1ec/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:50:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-12-13 12:50:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-12-13 12:50:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-12-13 12:50:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-12-13 12:50:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:50:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-12-13 12:50:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-12-13 12:50:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 12:50:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 12:50:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-13 12:50:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-13 12:50:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-12-13 12:50:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-12-13 12:50:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-13 12:50:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-13 12:50:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-12-13 12:50:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-12-13 12:50:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-12-13 12:50:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-12-13 12:50:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-12-13 12:50:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-12-13 12:50:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:50:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 12:50:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 12:50:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-12-13 12:50:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-12-13 12:50:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-12-13 12:50:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-12-13 12:50:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-12-13 12:50:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-12-13 12:50:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-12-13 12:50:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-12-13 12:50:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-12-13 12:50:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-12-13 12:50:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 12:50:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 12:50:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:50:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 12:50:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 12:50:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-12-13 12:50:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-12-13 12:50:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-12-13 12:50:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-12-13 12:50:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-12-13 12:50:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-12-13 12:50:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 12:50:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 12:50:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-12-13 12:50:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-12-13 12:50:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 12:50:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 12:50:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-12-13 12:50:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-12-13 12:50:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-12-13 12:50:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-12-13 12:50:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-13 12:50:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-13 12:50:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-12-13 12:50:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-12-13 12:50:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-12-13 12:50:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-12-13 12:50:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-12-13 12:50:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-12-13 12:50:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-13 12:50:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-13 12:50:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-12-13 12:50:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-12-13 12:50:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-12-13 12:50:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-12-13 12:50:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-12-13 12:50:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-12-13 12:50:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-12-13 12:50:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-12-13 12:50:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-12-13 12:50:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-12-13 12:50:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-12-13 12:50:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-12-13 12:50:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-12-13 12:50:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-12-13 12:50:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-12-13 12:50:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-12-13 12:50:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-12-13 12:50:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-12-13 12:50:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-12-13 12:50:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-12-13 12:50:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-12-13 12:50:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-12-13 12:50:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-12-13 12:50:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-12-13 12:50:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:50:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-12-13 12:50:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-12-13 12:50:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:50:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:50:19,315 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:50:19,317 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:50:39,905 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:50:39,930 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:50:39,930 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 12:50:39,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:50:39 BoogieIcfgContainer [2022-12-13 12:50:39,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:50:39,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:50:39,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:50:39,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:50:39,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:50:17" (1/3) ... [2022-12-13 12:50:39,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9c2d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:50:39, skipping insertion in model container [2022-12-13 12:50:39,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:50:18" (2/3) ... [2022-12-13 12:50:39,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9c2d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:50:39, skipping insertion in model container [2022-12-13 12:50:39,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:50:39" (3/3) ... [2022-12-13 12:50:39,944 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2022-12-13 12:50:39,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:50:39,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:50:40,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:50:40,046 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;@191d822, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:50:40,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 12:50:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2022-12-13 12:50:40,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-13 12:50:40,066 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:50:40,066 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] [2022-12-13 12:50:40,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:50:40,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:50:40,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2022-12-13 12:50:40,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:50:40,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980607918] [2022-12-13 12:50:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:50:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms