./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc7a523a551103aeb2dd7ea3e708e9b42a327a50ce055e0932147e1f855a3338 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:43:47,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:43:47,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:43:47,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:43:47,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:43:47,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:43:47,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:43:47,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:43:47,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:43:47,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:43:47,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:43:47,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:43:47,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:43:47,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:43:47,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:43:47,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:43:47,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:43:47,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:43:47,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:43:47,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:43:47,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:43:47,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:43:47,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:43:47,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:43:47,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:43:47,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:43:47,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:43:47,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:43:47,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:43:47,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:43:47,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:43:47,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:43:47,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:43:47,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:43:47,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:43:47,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:43:47,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:43:47,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:43:47,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:43:47,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:43:47,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:43:47,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:43:47,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:43:47,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:43:47,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:43:47,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:43:47,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:43:47,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:43:47,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:43:47,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:43:47,664 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:43:47,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:43:47,664 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:43:47,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:43:47,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:43:47,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:43:47,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:43:47,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:43:47,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:43:47,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:43:47,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:43:47,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:43:47,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:43:47,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:43:47,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:43:47,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:43:47,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:43:47,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:43:47,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:43:47,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:43:47,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:43:47,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:43:47,672 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:43:47,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:43:47,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:43:47,673 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_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc7a523a551103aeb2dd7ea3e708e9b42a327a50ce055e0932147e1f855a3338 [2022-11-20 10:43:48,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:43:48,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:43:48,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:43:48,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:43:48,121 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:43:48,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c [2022-11-20 10:43:51,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:43:52,192 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:43:52,193 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c [2022-11-20 10:43:52,220 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/data/c142f935e/2c4ac69db7644d2085a53cee5a0b34a0/FLAG34aa1349c [2022-11-20 10:43:52,237 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/data/c142f935e/2c4ac69db7644d2085a53cee5a0b34a0 [2022-11-20 10:43:52,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:43:52,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:43:52,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:43:52,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:43:52,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:43:52,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:43:52" (1/1) ... [2022-11-20 10:43:52,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1778371a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:52, skipping insertion in model container [2022-11-20 10:43:52,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:43:52" (1/1) ... [2022-11-20 10:43:52,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:43:52,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:43:52,568 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_6dec5f85-5749-482e-8e07-a49409d44517/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c[1719,1732] [2022-11-20 10:43:53,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:43:53,246 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:43:53,269 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_6dec5f85-5749-482e-8e07-a49409d44517/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c[1719,1732] [2022-11-20 10:43:53,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:43:53,542 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:43:53,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53 WrapperNode [2022-11-20 10:43:53,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:43:53,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:43:53,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:43:53,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:43:53,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,963 INFO L138 Inliner]: procedures = 58, calls = 3154, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5969 [2022-11-20 10:43:53,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:43:53,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:43:53,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:43:53,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:43:53,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:53,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,364 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:43:54,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:43:54,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:43:54,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:43:54,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (1/1) ... [2022-11-20 10:43:54,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:43:54,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:54,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:43:54,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dec5f85-5749-482e-8e07-a49409d44517/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-20 10:43:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-20 10:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-20 10:43:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-20 10:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-20 10:43:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-20 10:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-20 10:43:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-20 10:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-20 10:43:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-20 10:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-20 10:43:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-20 10:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-20 10:43:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-20 10:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-20 10:43:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-20 10:43:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-20 10:43:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-20 10:43:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-20 10:43:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-20 10:43:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-20 10:43:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-20 10:43:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-20 10:43:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-20 10:43:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:43:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-20 10:43:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-20 10:43:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:43:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-20 10:43:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-20 10:43:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-20 10:43:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-20 10:43:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-20 10:43:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-20 10:43:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-20 10:43:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-20 10:43:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:43:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:43:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:43:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:43:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:43:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-20 10:43:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-20 10:43:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-20 10:43:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-20 10:43:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-20 10:43:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-20 10:43:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-20 10:43:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-20 10:43:55,341 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:43:55,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:44:07,857 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:44:07,889 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:44:07,891 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:44:07,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:07 BoogieIcfgContainer [2022-11-20 10:44:07,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:44:07,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:44:07,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:44:07,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:44:07,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:43:52" (1/3) ... [2022-11-20 10:44:07,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd145eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:44:07, skipping insertion in model container [2022-11-20 10:44:07,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:53" (2/3) ... [2022-11-20 10:44:07,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd145eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:44:07, skipping insertion in model container [2022-11-20 10:44:07,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:07" (3/3) ... [2022-11-20 10:44:07,909 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-2.c [2022-11-20 10:44:07,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:44:07,935 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:44:08,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:44:08,090 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;@4980ea5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:44:08,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:44:08,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 2339 states, 1375 states have (on average 1.1985454545454546) internal successors, (1648), 1380 states have internal predecessors, (1648), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (940), 938 states have call predecessors, (940), 940 states have call successors, (940) [2022-11-20 10:44:08,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1339 [2022-11-20 10:44:08,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:08,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:08,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:44:08,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash 181886461, now seen corresponding path program 1 times [2022-11-20 10:44:08,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:08,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889360614] [2022-11-20 10:44:08,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:08,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms