./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro --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 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a --- 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-8393723 [2022-11-18 19:36:40,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:36:40,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:36:40,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:36:40,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:36:40,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:36:40,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:36:40,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:36:40,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:36:40,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:36:40,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:36:40,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:36:40,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:36:40,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:36:40,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:36:40,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:36:40,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:36:40,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:36:40,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:36:40,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:36:40,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:36:40,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:36:40,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:36:40,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:36:40,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:36:40,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:36:40,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:36:40,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:36:40,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:36:40,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:36:40,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:36:40,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:36:40,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:36:40,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:36:40,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:36:40,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:36:40,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:36:40,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:36:40,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:36:40,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:36:40,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:36:40,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:36:40,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:36:40,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:36:40,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:36:40,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:36:40,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:36:40,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:36:40,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:36:40,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:36:40,836 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:36:40,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:36:40,837 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:36:40,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:36:40,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:36:40,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:36:40,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:36:40,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:36:40,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:36:40,839 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:36:40,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:36:40,839 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:36:40,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:36:40,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:36:40,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:36:40,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:36:40,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:36:40,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:36:40,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:36:40,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:36:40,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:36:40,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:36:40,843 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:36:40,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:36:40,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:36:40,844 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_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a [2022-11-18 19:36:41,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:36:41,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:36:41,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:36:41,189 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:36:41,190 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:36:41,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2022-11-18 19:36:41,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/data/0d1b53198/f4b940c5ec6641d1a09a60a8f2fa421c/FLAG0e79ca5fc [2022-11-18 19:36:42,156 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:36:42,157 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2022-11-18 19:36:42,199 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/data/0d1b53198/f4b940c5ec6641d1a09a60a8f2fa421c/FLAG0e79ca5fc [2022-11-18 19:36:42,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/data/0d1b53198/f4b940c5ec6641d1a09a60a8f2fa421c [2022-11-18 19:36:42,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:36:42,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:36:42,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:36:42,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:36:42,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:36:42,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:36:42" (1/1) ... [2022-11-18 19:36:42,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65456c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:42, skipping insertion in model container [2022-11-18 19:36:42,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:36:42" (1/1) ... [2022-11-18 19:36:42,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:36:42,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:36:43,256 WARN L234 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_625fffd6-0c69-4a37-826e-4e6dd50c87c2/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208] [2022-11-18 19:36:44,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:36:44,498 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:36:44,533 WARN L234 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_625fffd6-0c69-4a37-826e-4e6dd50c87c2/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208] [2022-11-18 19:36:45,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:36:45,480 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:36:45,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45 WrapperNode [2022-11-18 19:36:45,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:36:45,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:36:45,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:36:45,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:36:45,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:45,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:47,314 INFO L138 Inliner]: procedures = 58, calls = 18195, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 39852 [2022-11-18 19:36:47,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:36:47,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:36:47,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:36:47,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:36:47,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:47,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:47,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:47,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:48,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:48,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:49,011 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:49,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:49,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:36:49,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:36:49,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:36:49,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:36:49,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:49,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:36:49,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:49,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:49,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625fffd6-0c69-4a37-826e-4e6dd50c87c2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:36:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:36:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-18 19:36:49,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-18 19:36:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-18 19:36:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-18 19:36:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:36:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-18 19:36:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-18 19:36:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-18 19:36:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-18 19:36:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-18 19:36:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-18 19:36:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:36:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-18 19:36:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-18 19:36:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-18 19:36:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-18 19:36:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-18 19:36:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-18 19:36:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-18 19:36:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-18 19:36:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:36:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-18 19:36:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-18 19:36:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:36:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-18 19:36:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-18 19:36:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-18 19:36:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-18 19:36:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:36:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:36:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:36:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:36:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:36:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-18 19:36:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-18 19:36:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-18 19:36:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-18 19:36:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-18 19:36:49,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-18 19:36:51,675 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:36:51,677 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:37:42,686 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:37:42,740 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:37:42,741 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:37:42,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:42 BoogieIcfgContainer [2022-11-18 19:37:42,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:37:42,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:37:42,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:37:42,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:37:42,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:36:42" (1/3) ... [2022-11-18 19:37:42,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a007495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:42, skipping insertion in model container [2022-11-18 19:37:42,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45" (2/3) ... [2022-11-18 19:37:42,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a007495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:42, skipping insertion in model container [2022-11-18 19:37:42,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:42" (3/3) ... [2022-11-18 19:37:42,768 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2022-11-18 19:37:42,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:37:42,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:37:43,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:37:43,063 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;@383b21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:37:43,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:37:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 12240 states, 7996 states have (on average 1.3156578289144572) internal successors, (10520), 8109 states have internal predecessors, (10520), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) [2022-11-18 19:37:43,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2022-11-18 19:37:43,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:43,672 INFO L195 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2022-11-18 19:37:43,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:37:43,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:43,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1377856296, now seen corresponding path program 1 times [2022-11-18 19:37:43,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:43,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555464781] [2022-11-18 19:37:43,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:43,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms