./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8 --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 a1eb342ebadad5f5d28e5fd9eb503795cab40e31c0a35c7b5f4b6a3c65ed5e13 --- 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-2329fc7 [2022-12-13 11:34:33,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:34:33,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:34:33,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:34:33,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:34:33,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:34:33,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:34:33,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:34:33,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:34:33,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:34:33,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:34:33,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:34:33,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:34:33,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:34:33,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:34:33,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:34:33,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:34:33,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:34:33,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:34:33,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:34:33,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:34:33,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:34:33,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:34:33,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:34:33,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:34:33,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:34:33,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:34:33,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:34:33,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:34:33,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:34:33,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:34:33,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:34:33,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:34:33,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:34:33,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:34:33,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:34:33,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:34:33,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:34:33,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:34:33,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:34:33,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:34:33,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:34:33,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:34:33,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:34:33,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:34:33,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:34:33,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:34:33,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:34:33,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:34:33,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:34:33,228 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:34:33,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:34:33,228 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:34:33,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:34:33,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:34:33,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:34:33,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:34:33,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:34:33,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:34:33,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:34:33,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:34:33,230 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:34:33,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:34:33,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:34:33,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:34:33,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:34:33,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:34:33,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:34:33,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:34:33,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:34:33,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:34:33,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:34:33,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:34:33,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:34:33,233 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:34:33,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:34:33,233 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:34:33,233 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1eb342ebadad5f5d28e5fd9eb503795cab40e31c0a35c7b5f4b6a3c65ed5e13 [2022-12-13 11:34:33,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:34:33,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:34:33,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:34:33,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:34:33,456 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:34:33,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c [2022-12-13 11:34:36,026 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:34:36,269 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:34:36,269 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c [2022-12-13 11:34:36,284 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/data/94239c978/2270b967382a4156be8cc6e56f5b7008/FLAG13067af1a [2022-12-13 11:34:36,615 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/data/94239c978/2270b967382a4156be8cc6e56f5b7008 [2022-12-13 11:34:36,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:34:36,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:34:36,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:34:36,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:34:36,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:34:36,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:34:36" (1/1) ... [2022-12-13 11:34:36,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26149513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:36, skipping insertion in model container [2022-12-13 11:34:36,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:34:36" (1/1) ... [2022-12-13 11:34:36,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:34:36,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:34:36,898 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_86a8a63c-c219-41bf-84ef-f94dc7af1756/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c[1682,1695] [2022-12-13 11:34:36,938 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 11:34:36,939 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 11:34:36,940 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 11:34:36,944 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:34:36,944 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:34:36,944 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 11:34:36,945 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:34:36,945 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:34:36,954 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 11:34:36,954 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 11:34:37,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:34:37,147 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:34:37,160 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_86a8a63c-c219-41bf-84ef-f94dc7af1756/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c[1682,1695] [2022-12-13 11:34:37,179 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 11:34:37,179 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 11:34:37,180 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 11:34:37,181 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:34:37,181 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:34:37,182 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 11:34:37,182 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:34:37,182 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:34:37,185 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 11:34:37,185 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 11:34:37,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:34:37,297 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:34:37,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37 WrapperNode [2022-12-13 11:34:37,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:34:37,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:34:37,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:34:37,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:34:37,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,427 INFO L138 Inliner]: procedures = 56, calls = 2059, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 4010 [2022-12-13 11:34:37,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:34:37,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:34:37,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:34:37,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:34:37,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:34:37,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:34:37,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:34:37,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:34:37,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (1/1) ... [2022-12-13 11:34:37,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:34:37,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:34:37,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:34:37,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86a8a63c-c219-41bf-84ef-f94dc7af1756/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:34:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:34:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 11:34:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 11:34:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 11:34:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 11:34:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:34:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 11:34:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 11:34:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 11:34:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 11:34:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 11:34:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 11:34:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:34:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 11:34:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 11:34:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 11:34:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 11:34:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 11:34:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 11:34:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 11:34:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 11:34:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:34:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 11:34:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 11:34:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:34:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 11:34:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 11:34:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 11:34:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 11:34:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 11:34:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 11:34:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:34:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:34:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:34:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 11:34:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 11:34:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 11:34:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 11:34:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 11:34:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 11:34:37,912 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:34:37,915 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:34:44,289 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:34:44,304 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:34:44,304 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:34:44,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:34:44 BoogieIcfgContainer [2022-12-13 11:34:44,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:34:44,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:34:44,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:34:44,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:34:44,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:34:36" (1/3) ... [2022-12-13 11:34:44,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786bbe80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:34:44, skipping insertion in model container [2022-12-13 11:34:44,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:37" (2/3) ... [2022-12-13 11:34:44,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786bbe80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:34:44, skipping insertion in model container [2022-12-13 11:34:44,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:34:44" (3/3) ... [2022-12-13 11:34:44,317 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M1-2.c [2022-12-13 11:34:44,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:34:44,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:34:44,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:34:44,416 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;@680f3312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:34:44,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:34:44,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 1655 states, 999 states have (on average 1.2262262262262262) internal successors, (1225), 1004 states have internal predecessors, (1225), 638 states have call successors, (638), 16 states have call predecessors, (638), 16 states have return successors, (638), 636 states have call predecessors, (638), 638 states have call successors, (638) [2022-12-13 11:34:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1309 [2022-12-13 11:34:44,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:34:44,494 INFO L195 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:34:44,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:34:44,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:34:44,498 INFO L85 PathProgramCache]: Analyzing trace with hash -66308904, now seen corresponding path program 1 times [2022-12-13 11:34:44,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:34:44,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012074929] [2022-12-13 11:34:44,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:34:44,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms