./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y --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 5e0651820efa05b0d1173e869e8cdb7c85f212e339148a75ab7dde9c1235571e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:37:10,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:37:10,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:37:10,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:37:10,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:37:10,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:37:10,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:37:10,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:37:10,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:37:10,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:37:10,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:37:10,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:37:10,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:37:10,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:37:10,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:37:10,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:37:10,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:37:10,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:37:10,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:37:10,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:37:10,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:37:10,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:37:10,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:37:10,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:37:10,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:37:10,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:37:10,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:37:10,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:37:10,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:37:10,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:37:10,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:37:10,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:37:10,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:37:10,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:37:10,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:37:10,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:37:10,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:37:10,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:37:10,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:37:10,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:37:10,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:37:10,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:37:10,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:37:10,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:37:10,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:37:10,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:37:10,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:37:10,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:37:10,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:37:10,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:37:10,376 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:37:10,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:37:10,386 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:37:10,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:37:10,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:37:10,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:37:10,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:37:10,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:37:10,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:37:10,387 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:37:10,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:37:10,388 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:37:10,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:37:10,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:37:10,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:37:10,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:37:10,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:37:10,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:37:10,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:37:10,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:37:10,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:37:10,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:37:10,391 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:37:10,392 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:37:10,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:37:10,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:37:10,392 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_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e0651820efa05b0d1173e869e8cdb7c85f212e339148a75ab7dde9c1235571e [2021-11-13 18:37:10,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:37:10,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:37:10,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:37:10,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:37:10,695 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:37:10,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-1.c [2021-11-13 18:37:10,757 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/data/6cdb99d9d/f60497273dda40258b2d096bbac5cecf/FLAGff746f237 [2021-11-13 18:37:11,630 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:37:11,631 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-1.c [2021-11-13 18:37:11,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/data/6cdb99d9d/f60497273dda40258b2d096bbac5cecf/FLAGff746f237 [2021-11-13 18:37:11,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/data/6cdb99d9d/f60497273dda40258b2d096bbac5cecf [2021-11-13 18:37:11,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:37:11,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:37:11,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:37:11,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:37:11,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:37:11,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:37:11" (1/1) ... [2021-11-13 18:37:11,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145301c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:11, skipping insertion in model container [2021-11-13 18:37:11,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:37:11" (1/1) ... [2021-11-13 18:37:11,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:37:11,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:37:12,360 WARN L228 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_3604c045-b263-4a39-aee6-082c0e47430b/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-1.c[2266,2279] [2021-11-13 18:37:13,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:37:13,732 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:37:13,757 WARN L228 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_3604c045-b263-4a39-aee6-082c0e47430b/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.3-1.c[2266,2279] [2021-11-13 18:37:14,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:37:14,616 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:37:14,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14 WrapperNode [2021-11-13 18:37:14,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:37:14,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:37:14,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:37:14,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:37:14,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:14,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:16,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:37:16,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:37:16,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:37:16,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:37:16,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:16,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:16,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:16,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:17,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:17,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:17,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:18,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:37:18,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:37:18,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:37:18,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:37:18,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (1/1) ... [2021-11-13 18:37:18,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:37:18,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:37:18,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:37:18,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3604c045-b263-4a39-aee6-082c0e47430b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:37:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-11-13 18:37:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-11-13 18:37:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-11-13 18:37:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-11-13 18:37:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:37:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-11-13 18:37:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-11-13 18:37:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-11-13 18:37:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-11-13 18:37:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-11-13 18:37:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-11-13 18:37:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-11-13 18:37:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-11-13 18:37:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-11-13 18:37:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-11-13 18:37:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-11-13 18:37:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-11-13 18:37:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-11-13 18:37:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-11-13 18:37:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:37:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-11-13 18:37:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-11-13 18:37:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-11-13 18:37:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-11-13 18:37:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-11-13 18:37:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-11-13 18:37:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-11-13 18:37:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-11-13 18:37:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-11-13 18:37:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-11-13 18:37:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-11-13 18:37:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-11-13 18:37:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-11-13 18:37:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-11-13 18:37:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-11-13 18:37:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-11-13 18:37:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-11-13 18:37:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-11-13 18:37:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-11-13 18:37:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-11-13 18:37:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-11-13 18:37:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-11-13 18:37:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:37:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-11-13 18:37:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-11-13 18:37:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-11-13 18:37:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-11-13 18:37:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-11-13 18:37:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-11-13 18:37:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-11-13 18:37:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-11-13 18:37:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-11-13 18:37:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-11-13 18:37:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-11-13 18:37:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-11-13 18:37:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-11-13 18:37:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-11-13 18:37:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-11-13 18:37:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-11-13 18:37:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-11-13 18:37:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-11-13 18:37:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-11-13 18:37:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-11-13 18:37:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-11-13 18:37:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-11-13 18:37:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-11-13 18:37:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-11-13 18:37:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-11-13 18:37:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-11-13 18:37:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-11-13 18:37:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-11-13 18:37:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-11-13 18:37:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-11-13 18:37:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-11-13 18:37:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-11-13 18:37:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-11-13 18:37:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-11-13 18:37:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-11-13 18:37:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-11-13 18:37:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-11-13 18:37:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-11-13 18:37:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-11-13 18:37:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-11-13 18:37:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-11-13 18:37:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-11-13 18:37:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-11-13 18:37:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-11-13 18:37:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:37:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-11-13 18:37:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-11-13 18:37:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:37:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:41:16,130 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:41:16,131 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 18:41:16,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:41:16 BoogieIcfgContainer [2021-11-13 18:41:16,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:41:16,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:41:16,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:41:16,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:41:16,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:37:11" (1/3) ... [2021-11-13 18:41:16,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1072bb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:41:16, skipping insertion in model container [2021-11-13 18:41:16,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:37:14" (2/3) ... [2021-11-13 18:41:16,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1072bb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:41:16, skipping insertion in model container [2021-11-13 18:41:16,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:41:16" (3/3) ... [2021-11-13 18:41:16,159 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.3-1.c [2021-11-13 18:41:16,165 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:41:16,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:41:16,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:41:16,283 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 [2021-11-13 18:41:16,288 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:41:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 8447 states, 8032 states have (on average 1.5709661354581674) internal successors, (12618), 8056 states have internal predecessors, (12618), 370 states have call successors, (370), 43 states have call predecessors, (370), 43 states have return successors, (370), 360 states have call predecessors, (370), 370 states have call successors, (370) [2021-11-13 18:41:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3346 [2021-11-13 18:41:16,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:16,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:16,820 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:16,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:16,828 INFO L85 PathProgramCache]: Analyzing trace with hash -391326380, now seen corresponding path program 1 times [2021-11-13 18:41:16,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:16,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389295069] [2021-11-13 18:41:16,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:16,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:21,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:41:21,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:21,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389295069] [2021-11-13 18:41:21,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389295069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:21,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:21,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:41:21,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023037469] [2021-11-13 18:41:21,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:21,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:41:21,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:21,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:41:21,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:41:21,586 INFO L87 Difference]: Start difference. First operand has 8447 states, 8032 states have (on average 1.5709661354581674) internal successors, (12618), 8056 states have internal predecessors, (12618), 370 states have call successors, (370), 43 states have call predecessors, (370), 43 states have return successors, (370), 360 states have call predecessors, (370), 370 states have call successors, (370) Second operand has 2 states, 2 states have (on average 1672.0) internal successors, (3344), 2 states have internal predecessors, (3344), 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) [2021-11-13 18:41:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:22,092 INFO L93 Difference]: Finished difference Result 16885 states and 27028 transitions. [2021-11-13 18:41:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:41:22,096 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1672.0) internal successors, (3344), 2 states have internal predecessors, (3344), 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 3345 [2021-11-13 18:41:22,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:22,177 INFO L225 Difference]: With dead ends: 16885 [2021-11-13 18:41:22,178 INFO L226 Difference]: Without dead ends: 8431 [2021-11-13 18:41:22,231 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 [2021-11-13 18:41:22,238 INFO L933 BasicCegarLoop]: 10411 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10411 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:22,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10411 Invalid, 0 Unknown, 0 Unchecked, 36.05ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:41:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8431 states. [2021-11-13 18:41:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8431 to 8431. [2021-11-13 18:41:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8431 states, 8017 states have (on average 1.2048147686166895) internal successors, (9659), 8041 states have internal predecessors, (9659), 370 states have call successors, (370), 43 states have call predecessors, (370), 43 states have return successors, (369), 359 states have call predecessors, (369), 369 states have call successors, (369) [2021-11-13 18:41:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8431 states to 8431 states and 10398 transitions. [2021-11-13 18:41:22,753 INFO L78 Accepts]: Start accepts. Automaton has 8431 states and 10398 transitions. Word has length 3345 [2021-11-13 18:41:22,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:22,756 INFO L470 AbstractCegarLoop]: Abstraction has 8431 states and 10398 transitions. [2021-11-13 18:41:22,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1672.0) internal successors, (3344), 2 states have internal predecessors, (3344), 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) [2021-11-13 18:41:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 8431 states and 10398 transitions. [2021-11-13 18:41:23,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3346 [2021-11-13 18:41:23,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:23,015 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] [2021-11-13 18:41:23,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:41:23,016 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:23,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:23,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1041356270, now seen corresponding path program 1 times [2021-11-13 18:41:23,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:23,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040031620] [2021-11-13 18:41:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:23,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms