./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/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_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/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_61cfa032-9efa-41ab-bea9-c23b24d75dc7/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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- 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 18:38:10,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:38:10,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:38:10,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:38:10,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:38:10,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:38:10,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:38:11,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:38:11,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:38:11,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:38:11,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:38:11,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:38:11,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:38:11,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:38:11,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:38:11,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:38:11,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:38:11,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:38:11,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:38:11,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:38:11,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:38:11,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:38:11,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:38:11,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:38:11,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:38:11,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:38:11,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:38:11,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:38:11,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:38:11,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:38:11,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:38:11,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:38:11,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:38:11,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:38:11,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:38:11,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:38:11,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:38:11,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:38:11,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:38:11,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:38:11,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:38:11,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:38:11,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:38:11,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:38:11,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:38:11,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:38:11,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:38:11,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:38:11,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:38:11,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:38:11,112 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:38:11,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:38:11,114 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:38:11,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:38:11,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:38:11,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:38:11,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:38:11,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:38:11,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:38:11,115 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:38:11,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:38:11,116 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:38:11,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:38:11,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:38:11,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:38:11,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:38:11,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:38:11,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:38:11,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:38:11,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:38:11,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:38:11,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:38:11,119 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:38:11,120 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:38:11,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:38:11,120 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_61cfa032-9efa-41ab-bea9-c23b24d75dc7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2022-11-18 18:38:11,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:38:11,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:38:11,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:38:11,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:38:11,470 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:38:11,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-18 18:38:11,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/data/fa1198b61/0343f0c898264426b33999746b990947/FLAG5897b66ed [2022-11-18 18:38:12,344 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:38:12,344 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-18 18:38:12,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/data/fa1198b61/0343f0c898264426b33999746b990947/FLAG5897b66ed [2022-11-18 18:38:12,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/data/fa1198b61/0343f0c898264426b33999746b990947 [2022-11-18 18:38:12,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:38:12,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:38:12,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:38:12,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:38:12,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:38:12,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:38:12" (1/1) ... [2022-11-18 18:38:12,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a24d882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:12, skipping insertion in model container [2022-11-18 18:38:12,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:38:12" (1/1) ... [2022-11-18 18:38:12,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:38:12,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:38:12,868 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_61cfa032-9efa-41ab-bea9-c23b24d75dc7/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-18 18:38:13,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:13,575 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:38:13,598 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_61cfa032-9efa-41ab-bea9-c23b24d75dc7/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-18 18:38:13,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:13,958 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:38:13,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13 WrapperNode [2022-11-18 18:38:13,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:38:13,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:38:13,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:38:13,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:38:13,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,326 INFO L138 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2022-11-18 18:38:14,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:38:14,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:38:14,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:38:14,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:38:14,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,678 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:38:14,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:38:14,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:38:14,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:38:14,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (1/1) ... [2022-11-18 18:38:14,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:38:14,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:14,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:38:14,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61cfa032-9efa-41ab-bea9-c23b24d75dc7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:38:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-18 18:38:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-18 18:38:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-18 18:38:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-18 18:38:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:38:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 18:38:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 18:38:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-18 18:38:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-18 18:38:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-18 18:38:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-18 18:38:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-18 18:38:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-18 18:38:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-18 18:38:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-18 18:38:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-18 18:38:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-18 18:38:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-18 18:38:14,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-18 18:38:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 18:38:14,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 18:38:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:38:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-18 18:38:14,818 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-18 18:38:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-18 18:38:14,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-18 18:38:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-18 18:38:14,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-18 18:38:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-18 18:38:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-18 18:38:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-18 18:38:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-18 18:38:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-18 18:38:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-18 18:38:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-18 18:38:14,820 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-18 18:38:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:38:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-18 18:38:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-18 18:38:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-18 18:38:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-18 18:38:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-18 18:38:14,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-18 18:38:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-18 18:38:14,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-18 18:38:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-18 18:38:14,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-18 18:38:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-18 18:38:14,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-18 18:38:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-18 18:38:14,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-18 18:38:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-18 18:38:14,824 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-18 18:38:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-18 18:38:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-18 18:38:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-18 18:38:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-18 18:38:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-18 18:38:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-18 18:38:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-18 18:38:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-18 18:38:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-18 18:38:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-18 18:38:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 18:38:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 18:38:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-18 18:38:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-18 18:38:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-18 18:38:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-18 18:38:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-18 18:38:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-18 18:38:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-18 18:38:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-18 18:38:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-18 18:38:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-18 18:38:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-18 18:38:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-18 18:38:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-18 18:38:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-18 18:38:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-18 18:38:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-18 18:38:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-18 18:38:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-18 18:38:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-18 18:38:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-18 18:38:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-18 18:38:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-18 18:38:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-18 18:38:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-18 18:38:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:38:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-18 18:38:14,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-18 18:38:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:38:14,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:38:15,511 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:38:15,515 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:38:32,536 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:38:32,568 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:38:32,568 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 18:38:32,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:38:32 BoogieIcfgContainer [2022-11-18 18:38:32,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:38:32,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:38:32,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:38:32,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:38:32,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:38:12" (1/3) ... [2022-11-18 18:38:32,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372d7535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:38:32, skipping insertion in model container [2022-11-18 18:38:32,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:13" (2/3) ... [2022-11-18 18:38:32,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372d7535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:38:32, skipping insertion in model container [2022-11-18 18:38:32,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:38:32" (3/3) ... [2022-11-18 18:38:32,583 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2022-11-18 18:38:32,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:38:32,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:38:32,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:38:32,699 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;@321db860, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:38:32,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:38:32,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2022-11-18 18:38:32,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-18 18:38:32,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:38:32,730 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 18:38:32,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:38:32,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:32,736 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2022-11-18 18:38:32,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:32,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561049101] [2022-11-18 18:38:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:32,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms