./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc --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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- 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-5e519f3 [2022-11-02 20:21:38,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:21:38,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:21:38,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:21:38,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:21:38,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:21:38,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:21:38,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:21:38,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:21:38,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:21:38,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:21:38,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:21:38,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:21:38,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:21:38,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:21:38,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:21:38,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:21:38,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:21:38,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:21:38,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:21:38,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:21:38,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:21:38,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:21:38,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:21:38,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:21:38,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:21:38,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:21:38,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:21:38,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:21:38,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:21:38,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:21:38,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:21:38,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:21:38,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:21:38,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:21:38,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:21:38,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:21:38,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:21:38,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:21:38,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:21:38,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:21:38,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:21:38,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:21:38,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:21:38,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:21:38,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:21:38,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:21:38,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:21:38,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:21:38,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:21:38,805 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:21:38,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:21:38,807 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:21:38,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:21:38,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:21:38,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:21:38,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:21:38,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:21:38,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:21:38,809 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:21:38,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:21:38,809 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:21:38,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:21:38,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:21:38,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:21:38,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:21:38,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:38,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:21:38,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:21:38,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:21:38,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:21:38,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:21:38,814 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:21:38,815 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:21:38,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:21:38,815 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_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-11-02 20:21:39,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:21:39,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:21:39,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:21:39,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:21:39,213 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:21:39,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-02 20:21:39,298 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/data/8dac19252/18e25598feed4acca0068eb23215a2b4/FLAG3a0bc8fa9 [2022-11-02 20:21:40,344 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:21:40,345 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-02 20:21:40,393 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/data/8dac19252/18e25598feed4acca0068eb23215a2b4/FLAG3a0bc8fa9 [2022-11-02 20:21:40,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/data/8dac19252/18e25598feed4acca0068eb23215a2b4 [2022-11-02 20:21:40,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:21:40,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:21:40,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:40,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:21:40,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:21:40,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:40" (1/1) ... [2022-11-02 20:21:40,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104db9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:40, skipping insertion in model container [2022-11-02 20:21:40,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:40" (1/1) ... [2022-11-02 20:21:40,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:21:40,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:21:41,287 WARN L230 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_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-02 20:21:42,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:42,092 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:21:42,111 WARN L230 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_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-02 20:21:42,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:42,479 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:21:42,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42 WrapperNode [2022-11-02 20:21:42,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:42,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:42,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:21:42,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:21:42,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:42,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:42,933 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-11-02 20:21:42,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:42,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:21:42,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:21:42,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:21:42,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:42,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:43,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:43,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:43,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:43,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:43,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:43,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:43,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:21:43,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:21:43,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:21:43,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:21:43,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (1/1) ... [2022-11-02 20:21:43,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:43,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:43,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:21:43,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_588b87e4-02fc-465f-997a-6d2ddcd9a5d6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:21:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-02 20:21:43,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-02 20:21:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-02 20:21:43,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-02 20:21:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:21:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-02 20:21:43,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-02 20:21:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-02 20:21:43,511 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-02 20:21:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-02 20:21:43,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-02 20:21:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-02 20:21:43,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-02 20:21:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-02 20:21:43,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-02 20:21:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-02 20:21:43,512 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-02 20:21:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-02 20:21:43,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-02 20:21:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-02 20:21:43,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-02 20:21:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:21:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-02 20:21:43,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-02 20:21:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-02 20:21:43,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-02 20:21:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-02 20:21:43,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-02 20:21:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-02 20:21:43,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-02 20:21:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-02 20:21:43,515 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-02 20:21:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-02 20:21:43,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-02 20:21:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-02 20:21:43,516 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-02 20:21:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:21:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-02 20:21:43,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-02 20:21:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-02 20:21:43,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-02 20:21:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-02 20:21:43,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-02 20:21:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-02 20:21:43,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-02 20:21:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-02 20:21:43,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-02 20:21:43,519 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-02 20:21:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-02 20:21:43,519 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-02 20:21:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-02 20:21:43,519 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-02 20:21:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-02 20:21:43,520 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-02 20:21:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-02 20:21:43,520 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-02 20:21:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-02 20:21:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-02 20:21:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-02 20:21:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-02 20:21:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-02 20:21:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-02 20:21:43,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-02 20:21:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-02 20:21:43,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-02 20:21:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-02 20:21:43,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-02 20:21:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-02 20:21:43,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-02 20:21:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-02 20:21:43,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-02 20:21:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-02 20:21:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-02 20:21:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-02 20:21:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-02 20:21:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-02 20:21:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-02 20:21:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-02 20:21:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-02 20:21:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-02 20:21:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-02 20:21:43,526 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-02 20:21:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-02 20:21:43,526 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-02 20:21:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-02 20:21:43,526 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-02 20:21:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-02 20:21:43,527 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-02 20:21:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-02 20:21:43,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:21:43,527 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-02 20:21:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-02 20:21:43,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:21:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:21:44,319 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:21:44,328 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:22:01,910 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:22:01,946 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:22:01,947 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 20:22:01,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:01 BoogieIcfgContainer [2022-11-02 20:22:01,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:22:01,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:22:01,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:22:01,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:22:01,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:21:40" (1/3) ... [2022-11-02 20:22:01,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b2cd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:01, skipping insertion in model container [2022-11-02 20:22:01,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:42" (2/3) ... [2022-11-02 20:22:01,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b2cd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:01, skipping insertion in model container [2022-11-02 20:22:01,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:01" (3/3) ... [2022-11-02 20:22:01,966 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-11-02 20:22:01,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:22:01,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:22:02,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:22:02,148 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;@895f983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:22:02,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:22:02,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-11-02 20:22:02,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-02 20:22:02,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:02,194 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] [2022-11-02 20:22:02,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:22:02,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-11-02 20:22:02,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:02,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650467801] [2022-11-02 20:22:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:02,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms