./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN --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 d1acaf5881e7bc6fb96063443cb57a4aeaaabd457c070b840e9f79d5e20a5abf --- 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-6b4ec56 [2022-11-20 12:24:41,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:24:41,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:24:41,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:24:41,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:24:41,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:24:41,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:24:41,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:24:41,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:24:41,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:24:41,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:24:41,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:24:41,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:24:41,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:24:41,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:24:41,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:24:41,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:24:41,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:24:41,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:24:41,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:24:41,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:24:41,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:24:41,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:24:41,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:24:41,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:24:41,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:24:41,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:24:41,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:24:41,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:24:41,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:24:41,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:24:41,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:24:41,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:24:41,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:24:41,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:24:41,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:24:41,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:24:41,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:24:41,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:24:41,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:24:41,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:24:41,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:24:41,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:24:41,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:24:41,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:24:41,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:24:41,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:24:41,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:24:41,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:24:41,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:24:41,259 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:24:41,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:24:41,260 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:24:41,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:24:41,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:24:41,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:24:41,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:24:41,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:24:41,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:24:41,262 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:24:41,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:24:41,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:24:41,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:24:41,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:24:41,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:24:41,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:24:41,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:24:41,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:24:41,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:24:41,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:24:41,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:24:41,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:24:41,266 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:24:41,266 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:24:41,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:24:41,267 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_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1acaf5881e7bc6fb96063443cb57a4aeaaabd457c070b840e9f79d5e20a5abf [2022-11-20 12:24:41,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:24:41,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:24:41,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:24:41,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:24:41,664 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:24:41,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2022-11-20 12:24:44,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:24:45,196 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:24:45,197 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2022-11-20 12:24:45,217 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/data/3cd88aba4/2576ada68b4c47d8a055e175764de86a/FLAG69cce0a1e [2022-11-20 12:24:45,239 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/data/3cd88aba4/2576ada68b4c47d8a055e175764de86a [2022-11-20 12:24:45,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:24:45,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:24:45,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:24:45,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:24:45,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:24:45,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:24:45" (1/1) ... [2022-11-20 12:24:45,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8dbc8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:45, skipping insertion in model container [2022-11-20 12:24:45,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:24:45" (1/1) ... [2022-11-20 12:24:45,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:24:45,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:24:45,561 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2022-11-20 12:24:45,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:24:46,014 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:24:46,032 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2022-11-20 12:24:46,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:24:46,296 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:24:46,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46 WrapperNode [2022-11-20 12:24:46,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:24:46,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:24:46,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:24:46,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:24:46,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,531 INFO L138 Inliner]: procedures = 62, calls = 1929, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 4123 [2022-11-20 12:24:46,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:24:46,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:24:46,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:24:46,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:24:46,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,832 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:24:46,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:24:46,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:24:46,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:24:46,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (1/1) ... [2022-11-20 12:24:46,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:24:46,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:46,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:24:46,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c755cf6-8989-4e46-97ae-1c27b71b6bc4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:24:47,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:24:47,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-20 12:24:47,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-20 12:24:47,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-20 12:24:47,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-20 12:24:47,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:24:47,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-20 12:24:47,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-20 12:24:47,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-20 12:24:47,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-20 12:24:47,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2022-11-20 12:24:47,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2022-11-20 12:24:47,010 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-20 12:24:47,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-20 12:24:47,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:24:47,010 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-20 12:24:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-20 12:24:47,011 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-20 12:24:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-20 12:24:47,011 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-20 12:24:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-20 12:24:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-20 12:24:47,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-20 12:24:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:24:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-20 12:24:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-20 12:24:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:24:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-20 12:24:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-20 12:24:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-20 12:24:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-20 12:24:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-20 12:24:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-20 12:24:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:24:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:24:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:24:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:24:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:24:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-20 12:24:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-20 12:24:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-20 12:24:47,018 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-20 12:24:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-20 12:24:47,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-20 12:24:47,631 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:24:47,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:24:55,390 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:24:55,405 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:24:55,405 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:24:55,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:55 BoogieIcfgContainer [2022-11-20 12:24:55,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:24:55,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:24:55,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:24:55,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:24:55,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:24:45" (1/3) ... [2022-11-20 12:24:55,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2857b0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:24:55, skipping insertion in model container [2022-11-20 12:24:55,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:46" (2/3) ... [2022-11-20 12:24:55,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2857b0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:24:55, skipping insertion in model container [2022-11-20 12:24:55,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:55" (3/3) ... [2022-11-20 12:24:55,418 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M1.c [2022-11-20 12:24:55,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:24:55,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:24:55,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:24:55,561 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;@7d5e8e59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:24:55,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:24:55,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 815 states have (on average 1.2748466257668711) internal successors, (1039), 846 states have internal predecessors, (1039), 455 states have call successors, (455), 18 states have call predecessors, (455), 18 states have return successors, (455), 453 states have call predecessors, (455), 455 states have call successors, (455) [2022-11-20 12:24:55,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2022-11-20 12:24:55,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:55,701 INFO L195 NwaCegarLoop]: trace histogram [111, 111, 111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:55,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:24:55,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:55,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1711506897, now seen corresponding path program 1 times [2022-11-20 12:24:55,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:55,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103497357] [2022-11-20 12:24:55,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:55,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms