./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.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_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/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_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/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_2fd74527-f7b3-440f-9d2b-3400d49920a1/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 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:17:41,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:17:41,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:17:41,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:17:41,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:17:41,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:17:41,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:17:41,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:17:41,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:17:41,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:17:41,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:17:41,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:17:41,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:17:41,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:17:41,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:17:41,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:17:41,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:17:41,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:17:41,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:17:41,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:17:41,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:17:41,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:17:41,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:17:41,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:17:41,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:17:41,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:17:41,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:17:41,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:17:41,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:17:41,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:17:41,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:17:41,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:17:41,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:17:41,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:17:41,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:17:41,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:17:41,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:17:41,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:17:41,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:17:41,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:17:41,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:17:41,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:17:41,673 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:17:41,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:17:41,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:17:41,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:17:41,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:17:41,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:17:41,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:17:41,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:17:41,675 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:17:41,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:17:41,676 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:17:41,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:17:41,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:17:41,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:17:41,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:17:41,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:17:41,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:17:41,677 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:17:41,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:17:41,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:17:41,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:17:41,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:17:41,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:17:41,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:17:41,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:17:41,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:17:41,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:17:41,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:17:41,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:17:41,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:17:41,679 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:17:41,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:17:41,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:17:41,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:17:41,679 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_2fd74527-f7b3-440f-9d2b-3400d49920a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 [2021-12-06 17:17:41,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:17:41,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:17:41,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:17:41,877 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:17:41,878 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:17:41,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2021-12-06 17:17:41,929 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/data/383e32a37/5b1f0b34b8364fcd84c0586a541f8317/FLAGeadebc245 [2021-12-06 17:17:42,432 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:17:42,433 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2021-12-06 17:17:42,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/data/383e32a37/5b1f0b34b8364fcd84c0586a541f8317/FLAGeadebc245 [2021-12-06 17:17:42,908 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/data/383e32a37/5b1f0b34b8364fcd84c0586a541f8317 [2021-12-06 17:17:42,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:17:42,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:17:42,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:17:42,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:17:42,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:17:42,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:17:42" (1/1) ... [2021-12-06 17:17:42,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78268603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:42, skipping insertion in model container [2021-12-06 17:17:42,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:17:42" (1/1) ... [2021-12-06 17:17:42,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:17:42,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:17:43,109 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_2fd74527-f7b3-440f-9d2b-3400d49920a1/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c[1806,1819] [2021-12-06 17:17:43,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:17:43,455 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:17:43,465 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_2fd74527-f7b3-440f-9d2b-3400d49920a1/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c[1806,1819] [2021-12-06 17:17:43,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:17:43,673 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:17:43,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43 WrapperNode [2021-12-06 17:17:43,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:17:43,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:17:43,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:17:43,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:17:43,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:43,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:43,990 INFO L137 Inliner]: procedures = 70, calls = 5236, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9829 [2021-12-06 17:17:43,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:17:43,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:17:43,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:17:43,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:17:43,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:43,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:44,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:44,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:44,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:44,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:44,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:44,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:17:44,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:17:44,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:17:44,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:17:44,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (1/1) ... [2021-12-06 17:17:44,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:17:44,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:17:44,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:17:44,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd74527-f7b3-440f-9d2b-3400d49920a1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:17:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:17:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-06 17:17:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-06 17:17:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-06 17:17:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-06 17:17:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-06 17:17:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-06 17:17:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:17:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-06 17:17:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-06 17:17:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-06 17:17:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-06 17:17:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-06 17:17:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-06 17:17:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-06 17:17:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-06 17:17:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:17:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-06 17:17:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-06 17:17:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-06 17:17:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-06 17:17:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-06 17:17:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-06 17:17:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-06 17:17:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-06 17:17:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 17:17:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 17:17:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 17:17:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 17:17:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-06 17:17:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-06 17:17:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:17:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-06 17:17:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-06 17:17:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:17:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-06 17:17:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-06 17:17:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-06 17:17:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-06 17:17:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-06 17:17:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-06 17:17:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-06 17:17:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-06 17:17:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 17:17:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 17:17:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:17:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:17:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:17:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-06 17:17:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-06 17:17:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-06 17:17:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-06 17:17:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-06 17:17:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-06 17:17:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-06 17:17:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-06 17:17:44,930 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:17:44,932 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:17:54,934 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:17:54,959 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:17:54,959 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:17:54,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:17:54 BoogieIcfgContainer [2021-12-06 17:17:54,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:17:54,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:17:54,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:17:54,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:17:54,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:17:42" (1/3) ... [2021-12-06 17:17:54,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7ab89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:17:54, skipping insertion in model container [2021-12-06 17:17:54,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:17:43" (2/3) ... [2021-12-06 17:17:54,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7ab89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:17:54, skipping insertion in model container [2021-12-06 17:17:54,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:17:54" (3/3) ... [2021-12-06 17:17:54,974 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M4.c [2021-12-06 17:17:54,979 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:17:54,979 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:17:55,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:17:55,049 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 17:17:55,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:17:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 3576 states, 2044 states have (on average 1.1653620352250489) internal successors, (2382), 2048 states have internal predecessors, (2382), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1504 states have call predecessors, (1506), 1506 states have call successors, (1506) [2021-12-06 17:17:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2021-12-06 17:17:55,186 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:17:55,187 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 17:17:55,188 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:17:55,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:17:55,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2131596560, now seen corresponding path program 1 times [2021-12-06 17:17:55,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:17:55,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504480506] [2021-12-06 17:17:55,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:17:55,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms