./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 38b53e6a 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_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 18:33:24,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:33:24,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:33:24,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:33:24,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:33:24,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:33:24,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:33:24,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:33:24,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:33:24,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:33:24,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:33:24,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:33:24,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:33:24,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:33:24,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:33:24,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:33:24,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:33:24,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:33:24,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:33:25,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:33:25,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:33:25,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:33:25,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:33:25,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:33:25,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:33:25,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:33:25,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:33:25,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:33:25,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:33:25,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:33:25,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:33:25,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:33:25,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:33:25,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:33:25,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:33:25,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:33:25,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:33:25,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:33:25,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:33:25,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:33:25,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:33:25,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:33:25,104 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:33:25,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:33:25,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:33:25,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:33:25,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:33:25,107 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:33:25,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:33:25,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:33:25,109 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:33:25,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:33:25,110 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:33:25,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:33:25,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:33:25,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:33:25,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:33:25,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:33:25,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:33:25,113 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:33:25,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:33:25,113 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:33:25,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:33:25,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:33:25,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:33:25,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:33:25,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:33:25,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:33:25,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:33:25,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:33:25,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:33:25,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:33:25,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:33:25,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:33:25,118 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:33:25,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:33:25,118 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_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2022-11-25 18:33:25,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:33:25,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:33:25,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:33:25,509 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:33:25,510 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:33:25,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-11-25 18:33:29,001 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:33:29,470 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:33:29,470 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-11-25 18:33:29,503 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/data/8e46a687e/ac7bebdb997d4d6c891c70bbe6583ddb/FLAG55b650b18 [2022-11-25 18:33:29,521 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/data/8e46a687e/ac7bebdb997d4d6c891c70bbe6583ddb [2022-11-25 18:33:29,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:33:29,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:33:29,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:29,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:33:29,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:33:29,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:29" (1/1) ... [2022-11-25 18:33:29,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7535a2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:29, skipping insertion in model container [2022-11-25 18:33:29,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:29" (1/1) ... [2022-11-25 18:33:29,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:33:29,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:33:29,919 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_dd25df1b-ac0d-4242-a937-060af4384c63/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-11-25 18:33:30,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:30,843 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:33:30,860 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_dd25df1b-ac0d-4242-a937-060af4384c63/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-11-25 18:33:31,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:31,178 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:33:31,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31 WrapperNode [2022-11-25 18:33:31,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:31,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:31,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:33:31,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:33:31,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:31,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:31,631 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2022-11-25 18:33:31,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:31,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:33:31,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:33:31,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:33:31,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:31,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:31,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:31,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:31,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:32,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:32,070 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:32,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:32,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:33:32,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:33:32,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:33:32,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:33:32,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (1/1) ... [2022-11-25 18:33:32,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:33:32,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:32,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:33:32,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25df1b-ac0d-4242-a937-060af4384c63/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:33:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-25 18:33:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-25 18:33:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-25 18:33:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-25 18:33:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:33:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 18:33:32,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 18:33:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 18:33:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 18:33:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-25 18:33:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-25 18:33:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-25 18:33:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-25 18:33:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-25 18:33:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-25 18:33:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-25 18:33:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-25 18:33:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-25 18:33:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-25 18:33:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 18:33:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 18:33:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:33:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 18:33:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 18:33:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-25 18:33:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-25 18:33:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-25 18:33:32,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-25 18:33:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-25 18:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-25 18:33:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-25 18:33:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-25 18:33:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-25 18:33:32,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-25 18:33:32,324 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 18:33:32,325 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 18:33:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:33:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 18:33:32,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 18:33:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-25 18:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-25 18:33:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-25 18:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-25 18:33:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-25 18:33:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-25 18:33:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 18:33:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 18:33:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-25 18:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-25 18:33:32,328 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 18:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 18:33:32,328 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-25 18:33:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-25 18:33:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-25 18:33:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-25 18:33:32,330 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-25 18:33:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-25 18:33:32,330 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-25 18:33:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-25 18:33:32,331 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-25 18:33:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-25 18:33:32,331 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-25 18:33:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-25 18:33:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 18:33:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 18:33:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-25 18:33:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-25 18:33:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-25 18:33:32,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-25 18:33:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-25 18:33:32,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-25 18:33:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-25 18:33:32,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-25 18:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-25 18:33:32,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-25 18:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-25 18:33:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-25 18:33:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-25 18:33:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-25 18:33:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-25 18:33:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-25 18:33:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 18:33:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 18:33:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-25 18:33:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-25 18:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-25 18:33:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-25 18:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-25 18:33:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-25 18:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:33:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-25 18:33:32,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-25 18:33:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:33:32,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:33:33,155 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:33:33,158 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:33:58,382 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:33:58,416 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:33:58,416 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 18:33:58,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:58 BoogieIcfgContainer [2022-11-25 18:33:58,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:33:58,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:33:58,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:33:58,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:33:58,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:33:29" (1/3) ... [2022-11-25 18:33:58,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c37df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:58, skipping insertion in model container [2022-11-25 18:33:58,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:31" (2/3) ... [2022-11-25 18:33:58,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c37df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:58, skipping insertion in model container [2022-11-25 18:33:58,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:58" (3/3) ... [2022-11-25 18:33:58,433 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2022-11-25 18:33:58,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:33:58,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:33:58,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:33:58,600 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;@75fc70b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:33:58,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:33:58,619 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) [2022-11-25 18:33:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 18:33:58,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:58,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:58,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:33:58,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2022-11-25 18:33:58,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:58,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63670272] [2022-11-25 18:33:58,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:58,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms