./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 e04fb08f 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_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/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_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 11:21:16,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:21:16,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:21:16,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:21:16,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:21:16,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:21:16,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:21:16,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:21:16,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:21:16,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:21:16,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:21:16,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:21:16,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:21:16,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:21:16,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:21:16,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:21:16,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:21:16,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:21:16,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:21:16,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:21:16,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:21:16,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:21:16,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:21:16,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:21:16,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:21:16,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:21:16,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:21:16,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:21:16,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:21:16,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:21:16,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:21:16,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:21:16,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:21:16,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:21:16,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:21:16,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:21:16,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:21:16,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:21:16,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:21:16,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:21:16,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:21:16,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:21:16,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:21:16,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:21:16,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:21:16,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:21:16,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:21:16,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:21:16,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:21:16,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:21:16,217 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:21:16,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:21:16,219 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:21:16,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:21:16,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:21:16,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:21:16,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:21:16,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:21:16,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:21:16,220 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:21:16,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:21:16,220 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:21:16,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:21:16,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:21:16,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:21:16,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:21:16,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:21:16,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:21:16,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:21:16,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:21:16,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:21:16,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:21:16,223 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:21:16,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:21:16,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:21:16,224 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_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-11-16 11:21:16,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:21:16,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:21:16,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:21:16,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:21:16,621 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:21:16,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-16 11:21:16,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/data/bc0086dc1/f49e851c73524e8fa6dd41a38d801dba/FLAGc591e777a [2022-11-16 11:21:17,485 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:21:17,485 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-16 11:21:17,515 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/data/bc0086dc1/f49e851c73524e8fa6dd41a38d801dba/FLAGc591e777a [2022-11-16 11:21:17,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/data/bc0086dc1/f49e851c73524e8fa6dd41a38d801dba [2022-11-16 11:21:17,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:21:17,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:21:17,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:21:17,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:21:17,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:21:17,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:21:17" (1/1) ... [2022-11-16 11:21:17,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435bd149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:17, skipping insertion in model container [2022-11-16 11:21:17,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:21:17" (1/1) ... [2022-11-16 11:21:17,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:21:17,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:21:17,955 WARN L229 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_06a3529a-eeba-4a9d-bf31-f9e77a10d381/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-16 11:21:18,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:21:18,562 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:21:18,575 WARN L229 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_06a3529a-eeba-4a9d-bf31-f9e77a10d381/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-16 11:21:18,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:21:18,967 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:21:18,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18 WrapperNode [2022-11-16 11:21:18,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:21:18,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:21:18,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:21:18,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:21:18,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,350 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-11-16 11:21:19,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:21:19,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:21:19,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:21:19,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:21:19,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:21:19,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:21:19,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:21:19,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:21:19,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (1/1) ... [2022-11-16 11:21:19,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:21:19,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:21:19,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:21:19,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a3529a-eeba-4a9d-bf31-f9e77a10d381/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:21:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-16 11:21:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-16 11:21:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-16 11:21:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-16 11:21:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:21:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-16 11:21:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-16 11:21:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-16 11:21:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-16 11:21:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-16 11:21:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-16 11:21:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-16 11:21:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-16 11:21:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-16 11:21:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-16 11:21:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-16 11:21:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-16 11:21:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-16 11:21:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-16 11:21:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-16 11:21:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-16 11:21:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:21:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-16 11:21:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-16 11:21:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-16 11:21:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-16 11:21:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-16 11:21:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-16 11:21:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-16 11:21:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-16 11:21:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-16 11:21:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-16 11:21:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-16 11:21:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-16 11:21:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-16 11:21:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-16 11:21:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:21:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-16 11:21:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-16 11:21:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-16 11:21:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-16 11:21:19,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-16 11:21:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-16 11:21:19,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-16 11:21:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-16 11:21:19,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-16 11:21:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-16 11:21:19,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-16 11:21:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-16 11:21:19,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-16 11:21:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-16 11:21:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-16 11:21:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-16 11:21:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-16 11:21:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-16 11:21:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-16 11:21:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-16 11:21:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-16 11:21:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-16 11:21:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-16 11:21:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-16 11:21:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-16 11:21:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-16 11:21:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-16 11:21:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-16 11:21:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-16 11:21:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-16 11:21:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-16 11:21:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-16 11:21:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-16 11:21:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-16 11:21:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-16 11:21:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-16 11:21:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-16 11:21:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-16 11:21:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-16 11:21:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-16 11:21:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-16 11:21:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-16 11:21:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-16 11:21:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-16 11:21:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-16 11:21:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-16 11:21:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-16 11:21:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-16 11:21:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-16 11:21:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-16 11:21:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-16 11:21:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-16 11:21:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:21:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-16 11:21:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-16 11:21:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:21:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:21:20,583 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:21:20,589 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:21:37,058 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:21:37,088 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:21:37,088 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 11:21:37,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:21:37 BoogieIcfgContainer [2022-11-16 11:21:37,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:21:37,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:21:37,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:21:37,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:21:37,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:21:17" (1/3) ... [2022-11-16 11:21:37,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbdd29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:21:37, skipping insertion in model container [2022-11-16 11:21:37,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:18" (2/3) ... [2022-11-16 11:21:37,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbdd29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:21:37, skipping insertion in model container [2022-11-16 11:21:37,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:21:37" (3/3) ... [2022-11-16 11:21:37,110 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-11-16 11:21:37,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:21:37,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:21:37,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:21:37,269 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;@4cdd341d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:21:37,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:21:37,282 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) [2022-11-16 11:21:37,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-16 11:21:37,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:21:37,307 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] [2022-11-16 11:21:37,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:21:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-11-16 11:21:37,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:37,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806440064] [2022-11-16 11:21:37,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:37,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms