./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/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_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/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_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/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 64d7e25d2b411aa83621d9b12af66c6bbf36b903d9ea3c8a9dc9ced9d60fa3c1 --- 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 12:48:10,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:48:10,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:48:10,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:48:10,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:48:10,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:48:10,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:48:10,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:48:10,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:48:10,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:48:10,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:48:10,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:48:10,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:48:10,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:48:10,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:48:10,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:48:10,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:48:10,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:48:10,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:48:10,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:48:10,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:48:10,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:48:10,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:48:10,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:48:10,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:48:10,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:48:10,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:48:10,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:48:10,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:48:10,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:48:10,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:48:10,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:48:10,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:48:10,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:48:10,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:48:10,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:48:10,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:48:10,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:48:10,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:48:10,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:48:10,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:48:10,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:48:10,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:48:10,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:48:10,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:48:10,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:48:10,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:48:10,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:48:10,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:48:10,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:48:10,316 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:48:10,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:48:10,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:48:10,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:48:10,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:48:10,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:48:10,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:48:10,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:48:10,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:48:10,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:48:10,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:48:10,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:48:10,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:48:10,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:48:10,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:48:10,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:48:10,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:48:10,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:48:10,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:48:10,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:48:10,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:48:10,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:48:10,323 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:48:10,323 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:48:10,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:48:10,323 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_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64d7e25d2b411aa83621d9b12af66c6bbf36b903d9ea3c8a9dc9ced9d60fa3c1 [2022-11-16 12:48:10,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:48:10,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:48:10,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:48:10,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:48:10,657 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:48:10,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-11-16 12:48:10,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/data/91135f1f2/aaa8cb4523d04c5bb4d08bd935fb4ed4/FLAG1f14aa02c [2022-11-16 12:48:11,737 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:48:11,738 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-11-16 12:48:11,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/data/91135f1f2/aaa8cb4523d04c5bb4d08bd935fb4ed4/FLAG1f14aa02c [2022-11-16 12:48:12,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/data/91135f1f2/aaa8cb4523d04c5bb4d08bd935fb4ed4 [2022-11-16 12:48:12,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:48:12,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:48:12,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:48:12,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:48:12,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:48:12,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:48:12" (1/1) ... [2022-11-16 12:48:12,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c1ef3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:12, skipping insertion in model container [2022-11-16 12:48:12,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:48:12" (1/1) ... [2022-11-16 12:48:12,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:48:12,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:48:12,580 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_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c[2232,2245] [2022-11-16 12:48:13,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:48:13,862 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:48:13,890 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_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c[2232,2245] [2022-11-16 12:48:14,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:48:14,888 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:48:14,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14 WrapperNode [2022-11-16 12:48:14,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:48:14,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:48:14,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:48:14,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:48:14,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:15,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:17,003 INFO L138 Inliner]: procedures = 60, calls = 19341, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 41957 [2022-11-16 12:48:17,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:48:17,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:48:17,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:48:17,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:48:17,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:17,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:17,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:17,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:17,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:18,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:18,149 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:18,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:18,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:48:18,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:48:18,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:48:18,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:48:18,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (1/1) ... [2022-11-16 12:48:18,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:48:18,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:48:18,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:48:18,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d77c61-59dd-4f3c-9526-0c0ec5da5a2f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:48:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:48:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-16 12:48:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-16 12:48:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-16 12:48:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-16 12:48:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-16 12:48:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-16 12:48:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:48:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-16 12:48:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-16 12:48:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-16 12:48:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-16 12:48:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-16 12:48:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-16 12:48:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:48:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-16 12:48:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-16 12:48:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-16 12:48:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-16 12:48:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-16 12:48:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-16 12:48:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-16 12:48:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-16 12:48:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-16 12:48:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-16 12:48:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-16 12:48:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-16 12:48:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:48:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:48:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-16 12:48:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-16 12:48:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-16 12:48:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-16 12:48:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-16 12:48:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-16 12:48:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-16 12:48:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-16 12:48:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:48:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:48:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:48:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:48:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:48:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-16 12:48:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-16 12:48:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-16 12:48:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-16 12:48:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-16 12:48:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-16 12:48:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-16 12:48:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-16 12:48:20,931 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:48:20,935 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:49:31,540 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:49:31,584 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:49:31,584 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:49:31,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:31 BoogieIcfgContainer [2022-11-16 12:49:31,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:49:31,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:49:31,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:49:31,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:49:31,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:48:12" (1/3) ... [2022-11-16 12:49:31,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f20d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:31, skipping insertion in model container [2022-11-16 12:49:31,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:48:14" (2/3) ... [2022-11-16 12:49:31,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f20d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:31, skipping insertion in model container [2022-11-16 12:49:31,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:31" (3/3) ... [2022-11-16 12:49:31,605 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M4-2.c [2022-11-16 12:49:31,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:49:31,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:49:32,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:49:32,010 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;@1b289777, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:49:32,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:49:32,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 12638 states, 8207 states have (on average 1.3098574387717803) internal successors, (10750), 8320 states have internal predecessors, (10750), 4408 states have call successors, (4408), 21 states have call predecessors, (4408), 21 states have return successors, (4408), 4406 states have call predecessors, (4408), 4408 states have call successors, (4408) [2022-11-16 12:49:32,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5901 [2022-11-16 12:49:32,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:32,555 INFO L195 NwaCegarLoop]: trace histogram [551, 551, 551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:49:32,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:32,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1922117985, now seen corresponding path program 1 times [2022-11-16 12:49:32,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:32,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999281918] [2022-11-16 12:49:32,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:32,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms