./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa --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 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:03:58,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:03:58,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:03:58,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:03:58,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:03:58,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:03:58,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:03:58,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:03:58,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:03:58,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:03:58,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:03:58,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:03:58,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:03:58,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:03:58,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:03:58,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:03:58,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:03:58,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:03:58,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:03:58,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:03:58,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:03:58,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:03:58,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:03:58,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:03:58,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:03:58,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:03:58,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:03:58,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:03:58,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:03:58,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:03:58,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:03:58,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:03:58,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:03:58,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:03:58,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:03:58,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:03:58,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:03:58,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:03:58,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:03:58,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:03:58,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:03:58,179 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 20:03:58,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:03:58,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:03:58,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:03:58,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:03:58,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:03:58,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:03:58,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:03:58,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:03:58,208 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:03:58,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:03:58,209 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:03:58,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:03:58,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:03:58,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:03:58,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:03:58,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:03:58,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:03:58,210 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:03:58,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:03:58,210 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:03:58,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:03:58,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:03:58,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:03:58,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:03:58,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:03:58,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:03:58,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:03:58,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:03:58,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:03:58,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:03:58,213 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:03:58,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:03:58,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:03:58,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:03:58,213 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_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 [2021-12-06 20:03:58,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:03:58,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:03:58,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:03:58,411 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:03:58,411 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:03:58,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2021-12-06 20:03:58,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/data/596f0f95a/964f0d5017464f49b7a7d010944145ec/FLAG2cbb65f6f [2021-12-06 20:03:58,952 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:03:58,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2021-12-06 20:03:58,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/data/596f0f95a/964f0d5017464f49b7a7d010944145ec/FLAG2cbb65f6f [2021-12-06 20:03:59,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/data/596f0f95a/964f0d5017464f49b7a7d010944145ec [2021-12-06 20:03:59,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:03:59,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:03:59,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:03:59,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:03:59,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:03:59,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:03:59" (1/1) ... [2021-12-06 20:03:59,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55784ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:03:59, skipping insertion in model container [2021-12-06 20:03:59,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:03:59" (1/1) ... [2021-12-06 20:03:59,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:03:59,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:03:59,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c[1806,1819] [2021-12-06 20:04:00,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:04:00,046 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:04:00,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c[1806,1819] [2021-12-06 20:04:00,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:04:00,313 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:04:00,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00 WrapperNode [2021-12-06 20:04:00,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:04:00,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:04:00,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:04:00,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:04:00,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,638 INFO L137 Inliner]: procedures = 70, calls = 5239, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 9786 [2021-12-06 20:04:00,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:04:00,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:04:00,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:04:00,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:04:00,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:04:00,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:04:00,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:04:00,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:04:00,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (1/1) ... [2021-12-06 20:04:00,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:04:00,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:04:00,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:04:00,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea48d93-1ba4-412e-8105-2d4a66a11cf9/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:04:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:04:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-06 20:04:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-06 20:04:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-06 20:04:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-06 20:04:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-06 20:04:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-06 20:04:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:04:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-06 20:04:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-06 20:04:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-06 20:04:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-06 20:04:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-06 20:04:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-06 20:04:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-06 20:04:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-06 20:04:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:04:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-06 20:04:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-06 20:04:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2021-12-06 20:04:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2021-12-06 20:04:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-06 20:04:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-06 20:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-06 20:04:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-06 20:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-06 20:04:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-06 20:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 20:04:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 20:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2021-12-06 20:04:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2021-12-06 20:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 20:04:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 20:04:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-06 20:04:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-06 20:04:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:04:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-06 20:04:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-06 20:04:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:04:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-06 20:04:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-06 20:04:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-06 20:04:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-06 20:04:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-06 20:04:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-06 20:04:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-06 20:04:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-06 20:04:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 20:04:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 20:04:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:04:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:04:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:04:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-06 20:04:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-06 20:04:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-06 20:04:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-06 20:04:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-06 20:04:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-06 20:04:00,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-06 20:04:00,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-06 20:04:01,422 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:04:01,425 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:04:14,473 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:04:14,493 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:04:14,493 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 20:04:14,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:04:14 BoogieIcfgContainer [2021-12-06 20:04:14,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:04:14,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:04:14,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:04:14,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:04:14,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:03:59" (1/3) ... [2021-12-06 20:04:14,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8eb95f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:04:14, skipping insertion in model container [2021-12-06 20:04:14,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:04:00" (2/3) ... [2021-12-06 20:04:14,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8eb95f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:04:14, skipping insertion in model container [2021-12-06 20:04:14,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:04:14" (3/3) ... [2021-12-06 20:04:14,504 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M4.c [2021-12-06 20:04:14,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:04:14,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:04:14,562 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:04:14,568 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:04:14,568 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:04:14,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 3589 states, 2050 states have (on average 1.1653658536585365) internal successors, (2389), 2055 states have internal predecessors, (2389), 1511 states have call successors, (1511), 26 states have call predecessors, (1511), 26 states have return successors, (1511), 1509 states have call predecessors, (1511), 1511 states have call successors, (1511) [2021-12-06 20:04:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2021-12-06 20:04:14,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:04:14,707 INFO L514 BasicCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:04:14,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:04:14,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:04:14,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1434617797, now seen corresponding path program 1 times [2021-12-06 20:04:14,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:04:14,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509341069] [2021-12-06 20:04:14,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:04:14,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms