./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ --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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- 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-dbf71c6-m [2022-10-17 10:15:45,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:15:45,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:15:45,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:15:45,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:15:45,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:15:45,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:15:45,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:15:45,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:15:45,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:15:45,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:15:45,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:15:45,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:15:45,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:15:45,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:15:45,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:15:45,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:15:45,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:15:45,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:15:45,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:15:45,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:15:45,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:15:45,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:15:45,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:15:45,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:15:45,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:15:45,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:15:45,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:15:45,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:15:45,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:15:45,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:15:45,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:15:45,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:15:45,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:15:45,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:15:45,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:15:45,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:15:45,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:15:45,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:15:45,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:15:45,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:15:45,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:15:45,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:15:45,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:15:45,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:15:45,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:15:45,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:15:45,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:15:45,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:15:45,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:15:45,930 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:15:45,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:15:45,932 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:15:45,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:15:45,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:15:45,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:15:45,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:15:45,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:15:45,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:15:45,934 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:15:45,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:15:45,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:15:45,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:15:45,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:15:45,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:15:45,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:15:45,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:15:45,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:15:45,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:15:45,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:15:45,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:15:45,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:15:45,937 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:15:45,937 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:15:45,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:15:45,938 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_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2022-10-17 10:15:46,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:15:46,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:15:46,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:15:46,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:15:46,257 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:15:46,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-10-17 10:15:46,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/data/b4ec2078c/fcc4d2ecdbc74b2cb50e6594fd1f14ed/FLAG8af9285f4 [2022-10-17 10:15:47,023 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:15:47,026 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-10-17 10:15:47,064 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/data/b4ec2078c/fcc4d2ecdbc74b2cb50e6594fd1f14ed/FLAG8af9285f4 [2022-10-17 10:15:47,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/data/b4ec2078c/fcc4d2ecdbc74b2cb50e6594fd1f14ed [2022-10-17 10:15:47,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:15:47,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:15:47,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:15:47,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:15:47,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:15:47,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:15:47" (1/1) ... [2022-10-17 10:15:47,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6b798d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:47, skipping insertion in model container [2022-10-17 10:15:47,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:15:47" (1/1) ... [2022-10-17 10:15:47,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:15:47,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:15:47,510 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_5a260142-6d01-4b9d-828e-7c98507b5d62/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-10-17 10:15:48,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:15:48,179 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:15:48,192 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_5a260142-6d01-4b9d-828e-7c98507b5d62/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-10-17 10:15:48,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:15:48,646 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:15:48,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48 WrapperNode [2022-10-17 10:15:48,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:15:48,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:15:48,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:15:48,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:15:48,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:48,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,090 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2022-10-17 10:15:49,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:15:49,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:15:49,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:15:49,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:15:49,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:15:49,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:15:49,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:15:49,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:15:49,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (1/1) ... [2022-10-17 10:15:49,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:15:49,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:15:49,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:15:49,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a260142-6d01-4b9d-828e-7c98507b5d62/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:15:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-10-17 10:15:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-10-17 10:15:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-10-17 10:15:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-10-17 10:15:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:15:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-10-17 10:15:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-10-17 10:15:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-17 10:15:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-17 10:15:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-17 10:15:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-17 10:15:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-10-17 10:15:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-10-17 10:15:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-17 10:15:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-17 10:15:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-10-17 10:15:49,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-10-17 10:15:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-10-17 10:15:49,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-10-17 10:15:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-10-17 10:15:49,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-10-17 10:15:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:15:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-17 10:15:49,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-17 10:15:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-10-17 10:15:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-10-17 10:15:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-10-17 10:15:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-10-17 10:15:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-10-17 10:15:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-10-17 10:15:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-10-17 10:15:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-10-17 10:15:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-10-17 10:15:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-10-17 10:15:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-17 10:15:49,833 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-17 10:15:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:15:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-17 10:15:49,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-17 10:15:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-10-17 10:15:49,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-10-17 10:15:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-10-17 10:15:49,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-10-17 10:15:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-10-17 10:15:49,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-10-17 10:15:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-17 10:15:49,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-17 10:15:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-10-17 10:15:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-10-17 10:15:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-17 10:15:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-17 10:15:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-10-17 10:15:49,837 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-10-17 10:15:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-10-17 10:15:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-10-17 10:15:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-17 10:15:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-17 10:15:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-10-17 10:15:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-10-17 10:15:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-10-17 10:15:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-10-17 10:15:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-10-17 10:15:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-10-17 10:15:49,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-17 10:15:49,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-17 10:15:49,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-10-17 10:15:49,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-10-17 10:15:49,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-10-17 10:15:49,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-10-17 10:15:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-10-17 10:15:49,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-10-17 10:15:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-10-17 10:15:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-10-17 10:15:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-10-17 10:15:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-10-17 10:15:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-10-17 10:15:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-10-17 10:15:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-10-17 10:15:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-10-17 10:15:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-10-17 10:15:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-10-17 10:15:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-10-17 10:15:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-10-17 10:15:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-10-17 10:15:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-10-17 10:15:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-10-17 10:15:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-10-17 10:15:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-10-17 10:15:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-10-17 10:15:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:15:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-10-17 10:15:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-10-17 10:15:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:15:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:15:50,524 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:15:50,527 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:16:16,303 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:16:16,333 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:16:16,333 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 10:16:16,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:16 BoogieIcfgContainer [2022-10-17 10:16:16,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:16:16,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:16:16,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:16:16,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:16:16,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:15:47" (1/3) ... [2022-10-17 10:16:16,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0a4ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:16:16, skipping insertion in model container [2022-10-17 10:16:16,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:48" (2/3) ... [2022-10-17 10:16:16,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0a4ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:16:16, skipping insertion in model container [2022-10-17 10:16:16,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:16" (3/3) ... [2022-10-17 10:16:16,351 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2022-10-17 10:16:16,370 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:16:16,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:16:16,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:16:16,485 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;@6806662a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:16:16,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:16:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2022-10-17 10:16:16,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-17 10:16:16,521 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:16,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:16:16,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:16,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2022-10-17 10:16:16,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:16,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234375434] [2022-10-17 10:16:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:16,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms