./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL --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 66615d945375ceea5b4ada22b003e1a8e291ec4d3a0b5c3c04d345b3412d5b92 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:28:25,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:28:25,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:28:26,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:28:26,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:28:26,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:28:26,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:28:26,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:28:26,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:28:26,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:28:26,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:28:26,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:28:26,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:28:26,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:28:26,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:28:26,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:28:26,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:28:26,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:28:26,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:28:26,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:28:26,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:28:26,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:28:26,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:28:26,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:28:26,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:28:26,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:28:26,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:28:26,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:28:26,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:28:26,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:28:26,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:28:26,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:28:26,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:28:26,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:28:26,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:28:26,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:28:26,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:28:26,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:28:26,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:28:26,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:28:26,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:28:26,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:28:26,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:28:26,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:28:26,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:28:26,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:28:26,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:28:26,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:28:26,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:28:26,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:28:26,172 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:28:26,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:28:26,173 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:28:26,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:28:26,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:28:26,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:28:26,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:28:26,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:28:26,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:28:26,175 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:28:26,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:28:26,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:28:26,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:28:26,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:28:26,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:28:26,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:28:26,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:28:26,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:28:26,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:28:26,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:28:26,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:28:26,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:28:26,179 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:28:26,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:28:26,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:28:26,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:28:26,181 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_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66615d945375ceea5b4ada22b003e1a8e291ec4d3a0b5c3c04d345b3412d5b92 [2021-11-19 04:28:26,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:28:26,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:28:26,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:28:26,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:28:26,458 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:28:26,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.4.c [2021-11-19 04:28:26,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/data/b9018b886/c1082abc11e144dca8e7a3f045376f6f/FLAGc6297ed55 [2021-11-19 04:28:27,453 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:28:27,454 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.4.c [2021-11-19 04:28:27,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/data/b9018b886/c1082abc11e144dca8e7a3f045376f6f/FLAGc6297ed55 [2021-11-19 04:28:27,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/data/b9018b886/c1082abc11e144dca8e7a3f045376f6f [2021-11-19 04:28:27,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:28:27,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:28:27,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:28:27,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:28:27,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:28:27,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:28:27" (1/1) ... [2021-11-19 04:28:27,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3fed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:27, skipping insertion in model container [2021-11-19 04:28:27,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:28:27" (1/1) ... [2021-11-19 04:28:27,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:28:28,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:28:28,552 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_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.4.c[2309,2322] [2021-11-19 04:28:30,308 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:28:30,339 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:28:30,362 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_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.4.c[2309,2322] [2021-11-19 04:28:31,833 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:28:31,885 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:28:31,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31 WrapperNode [2021-11-19 04:28:31,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:28:31,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:28:31,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:28:31,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:28:31,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:32,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:34,599 INFO L137 Inliner]: procedures = 102, calls = 18605, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 62852 [2021-11-19 04:28:34,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:28:34,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:28:34,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:28:34,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:28:34,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:34,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:35,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:35,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:36,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:36,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:37,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:37,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:28:37,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:28:37,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:28:37,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:28:37,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (1/1) ... [2021-11-19 04:28:37,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:28:37,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:28:37,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:28:37,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3a95f1-ea42-46b3-9b6a-c5a9b4184770/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:28:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-11-19 04:28:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-11-19 04:28:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-11-19 04:28:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-11-19 04:28:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:28:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-11-19 04:28:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-11-19 04:28:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-11-19 04:28:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-11-19 04:28:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-11-19 04:28:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-11-19 04:28:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-11-19 04:28:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-11-19 04:28:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-11-19 04:28:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-11-19 04:28:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-11-19 04:28:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-11-19 04:28:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-11-19 04:28:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-11-19 04:28:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:28:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-11-19 04:28:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-11-19 04:28:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-11-19 04:28:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-11-19 04:28:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-11-19 04:28:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-11-19 04:28:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-11-19 04:28:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-11-19 04:28:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-11-19 04:28:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-11-19 04:28:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-11-19 04:28:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-11-19 04:28:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-11-19 04:28:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-11-19 04:28:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:28:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-11-19 04:28:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-11-19 04:28:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-11-19 04:28:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-11-19 04:28:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-11-19 04:28:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-11-19 04:28:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-11-19 04:28:37,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-11-19 04:28:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:28:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-11-19 04:28:37,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-11-19 04:28:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-11-19 04:28:37,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-11-19 04:28:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-11-19 04:28:37,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-11-19 04:28:37,431 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-11-19 04:28:37,431 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-11-19 04:28:37,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-11-19 04:28:37,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-11-19 04:28:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-11-19 04:28:37,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-11-19 04:28:37,434 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-11-19 04:28:37,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-11-19 04:28:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-11-19 04:28:37,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-11-19 04:28:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-11-19 04:28:37,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-11-19 04:28:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-11-19 04:28:37,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-11-19 04:28:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-11-19 04:28:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-11-19 04:28:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-11-19 04:28:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-11-19 04:28:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-11-19 04:28:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-11-19 04:28:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-11-19 04:28:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-11-19 04:28:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-11-19 04:28:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-11-19 04:28:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-11-19 04:28:37,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-11-19 04:28:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-11-19 04:28:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-11-19 04:28:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-11-19 04:28:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-11-19 04:28:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-11-19 04:28:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-11-19 04:28:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-11-19 04:28:37,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-11-19 04:28:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-11-19 04:28:37,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-11-19 04:28:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-11-19 04:28:37,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-11-19 04:28:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:28:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-11-19 04:28:37,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-11-19 04:28:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:28:37,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:28:40,062 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:28:40,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:39:59,829 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:39:59,945 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:39:59,945 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 04:39:59,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:39:59 BoogieIcfgContainer [2021-11-19 04:39:59,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:39:59,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:39:59,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:39:59,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:39:59,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:28:27" (1/3) ... [2021-11-19 04:39:59,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a0df04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:39:59, skipping insertion in model container [2021-11-19 04:39:59,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:28:31" (2/3) ... [2021-11-19 04:39:59,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a0df04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:39:59, skipping insertion in model container [2021-11-19 04:39:59,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:39:59" (3/3) ... [2021-11-19 04:39:59,974 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.4.c [2021-11-19 04:39:59,981 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:39:59,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:40:00,114 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:40:00,122 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:40:00,123 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:40:00,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 13229 states, 12786 states have (on average 1.583919912404192) internal successors, (20252), 12810 states have internal predecessors, (20252), 398 states have call successors, (398), 43 states have call predecessors, (398), 43 states have return successors, (398), 388 states have call predecessors, (398), 398 states have call successors, (398) [2021-11-19 04:40:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5046 [2021-11-19 04:40:01,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:40:01,442 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:01,443 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:40:01,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:40:01,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1187055827, now seen corresponding path program 1 times [2021-11-19 04:40:01,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:40:01,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414687036] [2021-11-19 04:40:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:40:01,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:40:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:40:10,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:40:10,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414687036] [2021-11-19 04:40:10,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414687036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:40:10,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:40:10,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:40:10,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136594079] [2021-11-19 04:40:10,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:40:10,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:40:10,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:40:10,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:40:10,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:40:10,197 INFO L87 Difference]: Start difference. First operand has 13229 states, 12786 states have (on average 1.583919912404192) internal successors, (20252), 12810 states have internal predecessors, (20252), 398 states have call successors, (398), 43 states have call predecessors, (398), 43 states have return successors, (398), 388 states have call predecessors, (398), 398 states have call successors, (398) Second operand has 2 states, 2 states have (on average 2522.0) internal successors, (5044), 2 states have internal predecessors, (5044), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:40:11,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:40:11,122 INFO L93 Difference]: Finished difference Result 26449 states and 42436 transitions. [2021-11-19 04:40:11,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:40:11,127 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2522.0) internal successors, (5044), 2 states have internal predecessors, (5044), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5045 [2021-11-19 04:40:11,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:40:11,252 INFO L225 Difference]: With dead ends: 26449 [2021-11-19 04:40:11,252 INFO L226 Difference]: Without dead ends: 13213 [2021-11-19 04:40:11,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:40:11,332 INFO L933 BasicCegarLoop]: 16255 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16255 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:40:11,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:40:11,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13213 states. [2021-11-19 04:40:11,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13213 to 13213. [2021-11-19 04:40:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13213 states, 12771 states have (on average 1.2095372327930467) internal successors, (15447), 12795 states have internal predecessors, (15447), 398 states have call successors, (398), 43 states have call predecessors, (398), 43 states have return successors, (397), 387 states have call predecessors, (397), 397 states have call successors, (397) [2021-11-19 04:40:11,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13213 states to 13213 states and 16242 transitions. [2021-11-19 04:40:11,927 INFO L78 Accepts]: Start accepts. Automaton has 13213 states and 16242 transitions. Word has length 5045 [2021-11-19 04:40:11,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:40:11,931 INFO L470 AbstractCegarLoop]: Abstraction has 13213 states and 16242 transitions. [2021-11-19 04:40:11,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2522.0) internal successors, (5044), 2 states have internal predecessors, (5044), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:40:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 13213 states and 16242 transitions. [2021-11-19 04:40:12,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5046 [2021-11-19 04:40:12,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:40:12,643 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:12,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:40:12,645 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:40:12,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:40:12,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1268073861, now seen corresponding path program 1 times [2021-11-19 04:40:12,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:40:12,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034095907] [2021-11-19 04:40:12,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:40:12,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms