./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/locks/test_locks_14-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/locks/test_locks_14-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e1f6c8a80d54f6d4b7b413368cc99af6eca243b930331d178961d851b56afbd --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:48:40,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:48:40,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:48:40,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:48:40,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:48:40,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:48:40,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:48:40,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:48:40,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:48:40,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:48:40,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:48:40,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:48:40,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:48:40,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:48:40,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:48:40,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:48:40,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:48:40,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:48:40,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:48:40,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:48:40,612 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:48:40,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:48:40,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:48:40,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:48:40,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:48:40,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:48:40,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:48:40,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:48:40,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:48:40,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:48:40,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:48:40,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:48:40,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:48:40,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:48:40,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:48:40,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:48:40,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:48:40,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:48:40,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:48:40,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:48:40,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:48:40,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:48:40,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 01:48:40,667 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:48:40,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:48:40,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:48:40,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:48:40,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:48:40,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:48:40,671 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:48:40,671 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:48:40,671 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:48:40,672 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:48:40,672 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:48:40,672 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:48:40,679 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:48:40,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:48:40,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 01:48:40,680 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:48:40,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:48:40,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 01:48:40,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:48:40,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:48:40,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:48:40,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:48:40,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 01:48:40,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:48:40,682 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:48:40,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:48:40,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:48:40,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:48:40,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:48:40,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:48:40,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:48:40,685 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:48:40,686 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e1f6c8a80d54f6d4b7b413368cc99af6eca243b930331d178961d851b56afbd [2022-07-22 01:48:41,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:48:41,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:48:41,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:48:41,027 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:48:41,028 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:48:41,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-1.c [2022-07-22 01:48:41,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7745437b3/c4c7a72b522e471e9cc03e6aa315b7bc/FLAG2c8dbf235 [2022-07-22 01:48:41,583 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:48:41,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-1.c [2022-07-22 01:48:41,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7745437b3/c4c7a72b522e471e9cc03e6aa315b7bc/FLAG2c8dbf235 [2022-07-22 01:48:41,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7745437b3/c4c7a72b522e471e9cc03e6aa315b7bc [2022-07-22 01:48:41,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:48:41,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:48:41,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:48:41,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:48:41,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:48:41,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:48:41" (1/1) ... [2022-07-22 01:48:41,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b5362f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:41, skipping insertion in model container [2022-07-22 01:48:41,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:48:41" (1/1) ... [2022-07-22 01:48:42,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:48:42,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:48:42,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-1.c[5283,5296] [2022-07-22 01:48:42,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:48:42,178 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:48:42,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-1.c[5283,5296] [2022-07-22 01:48:42,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:48:42,242 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:48:42,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42 WrapperNode [2022-07-22 01:48:42,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:48:42,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:48:42,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:48:42,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:48:42,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,283 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 167 [2022-07-22 01:48:42,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:48:42,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:48:42,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:48:42,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:48:42,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:48:42,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:48:42,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:48:42,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:48:42,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (1/1) ... [2022-07-22 01:48:42,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:48:42,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:48:42,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:48:42,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 01:48:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 01:48:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:48:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:48:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 01:48:42,496 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:48:42,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:48:42,767 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:48:42,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:48:42,773 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 01:48:42,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:48:42 BoogieIcfgContainer [2022-07-22 01:48:42,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:48:42,776 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:48:42,776 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:48:42,778 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:48:42,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:48:42,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:48:41" (1/3) ... [2022-07-22 01:48:42,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c3edae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:48:42, skipping insertion in model container [2022-07-22 01:48:42,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:48:42,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:48:42" (2/3) ... [2022-07-22 01:48:42,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c3edae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:48:42, skipping insertion in model container [2022-07-22 01:48:42,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:48:42,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:48:42" (3/3) ... [2022-07-22 01:48:42,782 INFO L354 chiAutomizerObserver]: Analyzing ICFG test_locks_14-1.c [2022-07-22 01:48:42,843 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:48:42,843 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:48:42,843 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:48:42,844 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:48:42,844 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:48:42,844 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:48:42,844 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:48:42,844 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:48:42,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:42,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 44 [2022-07-22 01:48:42,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:42,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:42,879 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:42,879 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:42,879 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:48:42,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:42,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 44 [2022-07-22 01:48:42,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:42,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:42,890 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:42,890 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:42,897 INFO L752 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 36#L211-1true [2022-07-22 01:48:42,900 INFO L754 eck$LassoCheckResult]: Loop: 36#L211-1true assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 45#L55true assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 21#L88true assume 0 != main_~p1~0#1;main_~lk1~0#1 := 1; 11#L88-2true assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 32#L92-1true assume !(0 != main_~p3~0#1); 3#L96-1true assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 6#L100-1true assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 48#L104-1true assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 12#L108-1true assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 51#L112-1true assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 25#L116-1true assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 39#L120-1true assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 33#L124-1true assume !(0 != main_~p11~0#1); 15#L128-1true assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 46#L132-1true assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 42#L136-1true assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 38#L140-1true assume !(0 != main_~p1~0#1); 16#L146-1true assume !(0 != main_~p2~0#1); 30#L151-1true assume !(0 != main_~p3~0#1); 28#L156-1true assume !(0 != main_~p4~0#1); 4#L161-1true assume !(0 != main_~p5~0#1); 10#L166-1true assume !(0 != main_~p6~0#1); 23#L171-1true assume !(0 != main_~p7~0#1); 19#L176-1true assume !(0 != main_~p8~0#1); 49#L181-1true assume !(0 != main_~p9~0#1); 20#L186-1true assume !(0 != main_~p10~0#1); 37#L191-1true assume !(0 != main_~p11~0#1); 50#L196-1true assume !(0 != main_~p12~0#1); 24#L201-1true assume !(0 != main_~p13~0#1); 13#L206-1true assume !(0 != main_~p14~0#1); 36#L211-1true [2022-07-22 01:48:42,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:42,914 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 01:48:42,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:42,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135362274] [2022-07-22 01:48:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:42,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,016 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:43,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1221430905, now seen corresponding path program 1 times [2022-07-22 01:48:43,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806108507] [2022-07-22 01:48:43,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:43,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:43,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806108507] [2022-07-22 01:48:43,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806108507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:43,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:43,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:43,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132592213] [2022-07-22 01:48:43,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:43,207 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:43,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:43,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:43,243 INFO L87 Difference]: Start difference. First operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:43,291 INFO L93 Difference]: Finished difference Result 99 states and 178 transitions. [2022-07-22 01:48:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:43,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 178 transitions. [2022-07-22 01:48:43,300 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2022-07-22 01:48:43,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 89 states and 143 transitions. [2022-07-22 01:48:43,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2022-07-22 01:48:43,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2022-07-22 01:48:43,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 143 transitions. [2022-07-22 01:48:43,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:43,313 INFO L369 hiAutomatonCegarLoop]: Abstraction has 89 states and 143 transitions. [2022-07-22 01:48:43,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 143 transitions. [2022-07-22 01:48:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-07-22 01:48:43,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 1.6067415730337078) internal successors, (143), 88 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 143 transitions. [2022-07-22 01:48:43,349 INFO L392 hiAutomatonCegarLoop]: Abstraction has 89 states and 143 transitions. [2022-07-22 01:48:43,349 INFO L374 stractBuchiCegarLoop]: Abstraction has 89 states and 143 transitions. [2022-07-22 01:48:43,350 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:48:43,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 143 transitions. [2022-07-22 01:48:43,357 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2022-07-22 01:48:43,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:43,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:43,358 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:43,358 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:43,358 INFO L752 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 174#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 168#L211-1 [2022-07-22 01:48:43,359 INFO L754 eck$LassoCheckResult]: Loop: 168#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 179#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 202#L88 assume !(0 != main_~p1~0#1); 221#L88-2 assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 220#L92-1 assume !(0 != main_~p3~0#1); 219#L96-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 218#L100-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 208#L104-1 assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 185#L108-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 186#L112-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 205#L116-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 183#L120-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 172#L124-1 assume !(0 != main_~p11~0#1); 173#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 192#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 213#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 211#L140-1 assume !(0 != main_~p1~0#1); 212#L146-1 assume !(0 != main_~p2~0#1); 246#L151-1 assume !(0 != main_~p3~0#1); 244#L156-1 assume !(0 != main_~p4~0#1); 242#L161-1 assume !(0 != main_~p5~0#1); 240#L166-1 assume !(0 != main_~p6~0#1); 237#L171-1 assume !(0 != main_~p7~0#1); 236#L176-1 assume !(0 != main_~p8~0#1); 207#L181-1 assume !(0 != main_~p9~0#1); 194#L186-1 assume !(0 != main_~p10~0#1); 180#L191-1 assume !(0 != main_~p11~0#1); 176#L196-1 assume !(0 != main_~p12~0#1); 189#L201-1 assume !(0 != main_~p13~0#1); 166#L206-1 assume !(0 != main_~p14~0#1); 168#L211-1 [2022-07-22 01:48:43,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,360 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-07-22 01:48:43,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218631783] [2022-07-22 01:48:43,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,376 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:43,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,388 INFO L85 PathProgramCache]: Analyzing trace with hash 711957815, now seen corresponding path program 1 times [2022-07-22 01:48:43,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165925174] [2022-07-22 01:48:43,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:43,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:43,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:43,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165925174] [2022-07-22 01:48:43,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165925174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:43,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:43,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:43,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907838310] [2022-07-22 01:48:43,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:43,426 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:43,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:43,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:43,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:43,428 INFO L87 Difference]: Start difference. First operand 89 states and 143 transitions. cyclomatic complexity: 56 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:43,446 INFO L93 Difference]: Finished difference Result 174 states and 278 transitions. [2022-07-22 01:48:43,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:43,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 278 transitions. [2022-07-22 01:48:43,449 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 172 [2022-07-22 01:48:43,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 174 states and 278 transitions. [2022-07-22 01:48:43,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2022-07-22 01:48:43,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2022-07-22 01:48:43,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 278 transitions. [2022-07-22 01:48:43,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:43,453 INFO L369 hiAutomatonCegarLoop]: Abstraction has 174 states and 278 transitions. [2022-07-22 01:48:43,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 278 transitions. [2022-07-22 01:48:43,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-07-22 01:48:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.5977011494252873) internal successors, (278), 173 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 278 transitions. [2022-07-22 01:48:43,472 INFO L392 hiAutomatonCegarLoop]: Abstraction has 174 states and 278 transitions. [2022-07-22 01:48:43,472 INFO L374 stractBuchiCegarLoop]: Abstraction has 174 states and 278 transitions. [2022-07-22 01:48:43,472 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:48:43,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 278 transitions. [2022-07-22 01:48:43,474 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 172 [2022-07-22 01:48:43,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:43,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:43,475 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:43,475 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:43,475 INFO L752 eck$LassoCheckResult]: Stem: 465#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 444#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 445#L211-1 [2022-07-22 01:48:43,475 INFO L754 eck$LassoCheckResult]: Loop: 445#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 527#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 525#L88 assume !(0 != main_~p1~0#1); 522#L88-2 assume !(0 != main_~p2~0#1); 517#L92-1 assume !(0 != main_~p3~0#1); 516#L96-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 514#L100-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 512#L104-1 assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 511#L108-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 510#L112-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 509#L116-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 508#L120-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 507#L124-1 assume !(0 != main_~p11~0#1); 506#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 505#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 489#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 490#L140-1 assume !(0 != main_~p1~0#1); 499#L146-1 assume !(0 != main_~p2~0#1); 501#L151-1 assume !(0 != main_~p3~0#1); 550#L156-1 assume !(0 != main_~p4~0#1); 548#L161-1 assume !(0 != main_~p5~0#1); 546#L166-1 assume !(0 != main_~p6~0#1); 543#L171-1 assume !(0 != main_~p7~0#1); 542#L176-1 assume !(0 != main_~p8~0#1); 540#L181-1 assume !(0 != main_~p9~0#1); 537#L186-1 assume !(0 != main_~p10~0#1); 536#L191-1 assume !(0 != main_~p11~0#1); 534#L196-1 assume !(0 != main_~p12~0#1); 532#L201-1 assume !(0 != main_~p13~0#1); 530#L206-1 assume !(0 != main_~p14~0#1); 445#L211-1 [2022-07-22 01:48:43,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,476 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-07-22 01:48:43,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887521732] [2022-07-22 01:48:43,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,489 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:43,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1659781447, now seen corresponding path program 1 times [2022-07-22 01:48:43,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203935815] [2022-07-22 01:48:43,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:43,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:43,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:43,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203935815] [2022-07-22 01:48:43,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203935815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:43,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:43,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:43,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773537121] [2022-07-22 01:48:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:43,554 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:43,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:43,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:43,556 INFO L87 Difference]: Start difference. First operand 174 states and 278 transitions. cyclomatic complexity: 108 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:43,577 INFO L93 Difference]: Finished difference Result 342 states and 542 transitions. [2022-07-22 01:48:43,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:43,578 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 542 transitions. [2022-07-22 01:48:43,581 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 340 [2022-07-22 01:48:43,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 542 transitions. [2022-07-22 01:48:43,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2022-07-22 01:48:43,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2022-07-22 01:48:43,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 542 transitions. [2022-07-22 01:48:43,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:43,587 INFO L369 hiAutomatonCegarLoop]: Abstraction has 342 states and 542 transitions. [2022-07-22 01:48:43,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 542 transitions. [2022-07-22 01:48:43,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-07-22 01:48:43,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 342 states have (on average 1.5847953216374269) internal successors, (542), 341 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 542 transitions. [2022-07-22 01:48:43,601 INFO L392 hiAutomatonCegarLoop]: Abstraction has 342 states and 542 transitions. [2022-07-22 01:48:43,602 INFO L374 stractBuchiCegarLoop]: Abstraction has 342 states and 542 transitions. [2022-07-22 01:48:43,602 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:48:43,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 342 states and 542 transitions. [2022-07-22 01:48:43,604 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 340 [2022-07-22 01:48:43,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:43,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:43,605 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:43,605 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:43,605 INFO L752 eck$LassoCheckResult]: Stem: 983#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 967#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 968#L211-1 [2022-07-22 01:48:43,605 INFO L754 eck$LassoCheckResult]: Loop: 968#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 1027#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 1022#L88 assume !(0 != main_~p1~0#1); 1023#L88-2 assume !(0 != main_~p2~0#1); 1152#L92-1 assume !(0 != main_~p3~0#1); 1149#L96-1 assume !(0 != main_~p4~0#1); 1147#L100-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 1145#L104-1 assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 1143#L108-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 1141#L112-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 1139#L116-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 1137#L120-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 1135#L124-1 assume !(0 != main_~p11~0#1); 1133#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 1131#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 1129#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 1125#L140-1 assume !(0 != main_~p1~0#1); 1123#L146-1 assume !(0 != main_~p2~0#1); 1121#L151-1 assume !(0 != main_~p3~0#1); 1116#L156-1 assume !(0 != main_~p4~0#1); 1114#L161-1 assume !(0 != main_~p5~0#1); 1108#L166-1 assume !(0 != main_~p6~0#1); 1103#L171-1 assume !(0 != main_~p7~0#1); 1100#L176-1 assume !(0 != main_~p8~0#1); 1098#L181-1 assume !(0 != main_~p9~0#1); 1095#L186-1 assume !(0 != main_~p10~0#1); 1092#L191-1 assume !(0 != main_~p11~0#1); 1088#L196-1 assume !(0 != main_~p12~0#1); 1068#L201-1 assume !(0 != main_~p13~0#1); 1038#L206-1 assume !(0 != main_~p14~0#1); 968#L211-1 [2022-07-22 01:48:43,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-07-22 01:48:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664157540] [2022-07-22 01:48:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,612 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:43,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1519232837, now seen corresponding path program 1 times [2022-07-22 01:48:43,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917425097] [2022-07-22 01:48:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:43,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:43,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917425097] [2022-07-22 01:48:43,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917425097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:43,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:43,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:43,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604667708] [2022-07-22 01:48:43,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:43,646 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:43,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:43,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:43,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:43,647 INFO L87 Difference]: Start difference. First operand 342 states and 542 transitions. cyclomatic complexity: 208 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:43,664 INFO L93 Difference]: Finished difference Result 674 states and 1058 transitions. [2022-07-22 01:48:43,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:43,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 674 states and 1058 transitions. [2022-07-22 01:48:43,680 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 672 [2022-07-22 01:48:43,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 674 states to 674 states and 1058 transitions. [2022-07-22 01:48:43,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 674 [2022-07-22 01:48:43,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 674 [2022-07-22 01:48:43,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 674 states and 1058 transitions. [2022-07-22 01:48:43,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:43,691 INFO L369 hiAutomatonCegarLoop]: Abstraction has 674 states and 1058 transitions. [2022-07-22 01:48:43,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states and 1058 transitions. [2022-07-22 01:48:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 674. [2022-07-22 01:48:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 674 states have (on average 1.5697329376854599) internal successors, (1058), 673 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1058 transitions. [2022-07-22 01:48:43,714 INFO L392 hiAutomatonCegarLoop]: Abstraction has 674 states and 1058 transitions. [2022-07-22 01:48:43,714 INFO L374 stractBuchiCegarLoop]: Abstraction has 674 states and 1058 transitions. [2022-07-22 01:48:43,714 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:48:43,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 674 states and 1058 transitions. [2022-07-22 01:48:43,718 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 672 [2022-07-22 01:48:43,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:43,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:43,719 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:43,719 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:43,719 INFO L752 eck$LassoCheckResult]: Stem: 2005#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 1986#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 1987#L211-1 [2022-07-22 01:48:43,719 INFO L754 eck$LassoCheckResult]: Loop: 1987#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 2105#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 2103#L88 assume !(0 != main_~p1~0#1); 2104#L88-2 assume !(0 != main_~p2~0#1); 2147#L92-1 assume !(0 != main_~p3~0#1); 2145#L96-1 assume !(0 != main_~p4~0#1); 2143#L100-1 assume !(0 != main_~p5~0#1); 2142#L104-1 assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 2141#L108-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 2140#L112-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 2139#L116-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 2138#L120-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 2137#L124-1 assume !(0 != main_~p11~0#1); 2136#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 2135#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 2134#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 2132#L140-1 assume !(0 != main_~p1~0#1); 2130#L146-1 assume !(0 != main_~p2~0#1); 2129#L151-1 assume !(0 != main_~p3~0#1); 2126#L156-1 assume !(0 != main_~p4~0#1); 2124#L161-1 assume !(0 != main_~p5~0#1); 2123#L166-1 assume !(0 != main_~p6~0#1); 2120#L171-1 assume !(0 != main_~p7~0#1); 2119#L176-1 assume !(0 != main_~p8~0#1); 2117#L181-1 assume !(0 != main_~p9~0#1); 2114#L186-1 assume !(0 != main_~p10~0#1); 2113#L191-1 assume !(0 != main_~p11~0#1); 2111#L196-1 assume !(0 != main_~p12~0#1); 2109#L201-1 assume !(0 != main_~p13~0#1); 2107#L206-1 assume !(0 != main_~p14~0#1); 1987#L211-1 [2022-07-22 01:48:43,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2022-07-22 01:48:43,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069619376] [2022-07-22 01:48:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,725 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:43,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1653246343, now seen corresponding path program 1 times [2022-07-22 01:48:43,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874575267] [2022-07-22 01:48:43,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:43,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:43,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874575267] [2022-07-22 01:48:43,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874575267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:43,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:43,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:43,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667826428] [2022-07-22 01:48:43,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:43,757 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:43,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:43,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:43,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:43,758 INFO L87 Difference]: Start difference. First operand 674 states and 1058 transitions. cyclomatic complexity: 400 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:43,779 INFO L93 Difference]: Finished difference Result 1330 states and 2066 transitions. [2022-07-22 01:48:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:43,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1330 states and 2066 transitions. [2022-07-22 01:48:43,795 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1328 [2022-07-22 01:48:43,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1330 states to 1330 states and 2066 transitions. [2022-07-22 01:48:43,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1330 [2022-07-22 01:48:43,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1330 [2022-07-22 01:48:43,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1330 states and 2066 transitions. [2022-07-22 01:48:43,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:43,805 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1330 states and 2066 transitions. [2022-07-22 01:48:43,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states and 2066 transitions. [2022-07-22 01:48:43,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1330. [2022-07-22 01:48:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1330 states have (on average 1.5533834586466166) internal successors, (2066), 1329 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 2066 transitions. [2022-07-22 01:48:43,839 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1330 states and 2066 transitions. [2022-07-22 01:48:43,839 INFO L374 stractBuchiCegarLoop]: Abstraction has 1330 states and 2066 transitions. [2022-07-22 01:48:43,839 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:48:43,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1330 states and 2066 transitions. [2022-07-22 01:48:43,846 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1328 [2022-07-22 01:48:43,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:43,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:43,846 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:43,846 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:43,847 INFO L752 eck$LassoCheckResult]: Stem: 4017#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 3996#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 3997#L211-1 [2022-07-22 01:48:43,847 INFO L754 eck$LassoCheckResult]: Loop: 3997#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 4074#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 4061#L88 assume !(0 != main_~p1~0#1); 4054#L88-2 assume !(0 != main_~p2~0#1); 4055#L92-1 assume !(0 != main_~p3~0#1); 4048#L96-1 assume !(0 != main_~p4~0#1); 4050#L100-1 assume !(0 != main_~p5~0#1); 4187#L104-1 assume !(0 != main_~p6~0#1); 4189#L108-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 4179#L112-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 4180#L116-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 4171#L120-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 4172#L124-1 assume !(0 != main_~p11~0#1); 4163#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 4164#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 4155#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 4156#L140-1 assume !(0 != main_~p1~0#1); 4355#L146-1 assume !(0 != main_~p2~0#1); 4353#L151-1 assume !(0 != main_~p3~0#1); 4348#L156-1 assume !(0 != main_~p4~0#1); 4346#L161-1 assume !(0 != main_~p5~0#1); 4345#L166-1 assume !(0 != main_~p6~0#1); 4342#L171-1 assume !(0 != main_~p7~0#1); 4341#L176-1 assume !(0 != main_~p8~0#1); 4338#L181-1 assume !(0 != main_~p9~0#1); 4335#L186-1 assume !(0 != main_~p10~0#1); 4317#L191-1 assume !(0 != main_~p11~0#1); 4289#L196-1 assume !(0 != main_~p12~0#1); 4288#L201-1 assume !(0 != main_~p13~0#1); 4292#L206-1 assume !(0 != main_~p14~0#1); 3997#L211-1 [2022-07-22 01:48:43,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,847 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2022-07-22 01:48:43,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962333801] [2022-07-22 01:48:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,853 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:43,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:43,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:43,858 INFO L85 PathProgramCache]: Analyzing trace with hash 836282619, now seen corresponding path program 1 times [2022-07-22 01:48:43,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:43,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47162512] [2022-07-22 01:48:43,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:43,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:43,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:43,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47162512] [2022-07-22 01:48:43,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47162512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:43,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:43,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:43,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906336895] [2022-07-22 01:48:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:43,898 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:43,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:43,899 INFO L87 Difference]: Start difference. First operand 1330 states and 2066 transitions. cyclomatic complexity: 768 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:43,935 INFO L93 Difference]: Finished difference Result 2626 states and 4034 transitions. [2022-07-22 01:48:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:43,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2626 states and 4034 transitions. [2022-07-22 01:48:43,978 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2624 [2022-07-22 01:48:43,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2626 states to 2626 states and 4034 transitions. [2022-07-22 01:48:43,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2626 [2022-07-22 01:48:43,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2626 [2022-07-22 01:48:43,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2626 states and 4034 transitions. [2022-07-22 01:48:43,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:43,997 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2626 states and 4034 transitions. [2022-07-22 01:48:43,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states and 4034 transitions. [2022-07-22 01:48:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2626. [2022-07-22 01:48:44,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2626 states, 2626 states have (on average 1.5361766945925361) internal successors, (4034), 2625 states have internal predecessors, (4034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2626 states to 2626 states and 4034 transitions. [2022-07-22 01:48:44,065 INFO L392 hiAutomatonCegarLoop]: Abstraction has 2626 states and 4034 transitions. [2022-07-22 01:48:44,065 INFO L374 stractBuchiCegarLoop]: Abstraction has 2626 states and 4034 transitions. [2022-07-22 01:48:44,068 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-22 01:48:44,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2626 states and 4034 transitions. [2022-07-22 01:48:44,083 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2624 [2022-07-22 01:48:44,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:44,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:44,085 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:44,085 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:44,085 INFO L752 eck$LassoCheckResult]: Stem: 7974#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 7958#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 7959#L211-1 [2022-07-22 01:48:44,086 INFO L754 eck$LassoCheckResult]: Loop: 7959#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 8097#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 8093#L88 assume !(0 != main_~p1~0#1); 8086#L88-2 assume !(0 != main_~p2~0#1); 8081#L92-1 assume !(0 != main_~p3~0#1); 8074#L96-1 assume !(0 != main_~p4~0#1); 8066#L100-1 assume !(0 != main_~p5~0#1); 8058#L104-1 assume !(0 != main_~p6~0#1); 8052#L108-1 assume !(0 != main_~p7~0#1); 8047#L112-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 8048#L116-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 8041#L120-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 8042#L124-1 assume !(0 != main_~p11~0#1); 8035#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 8036#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 8028#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 8029#L140-1 assume !(0 != main_~p1~0#1); 8194#L146-1 assume !(0 != main_~p2~0#1); 8174#L151-1 assume !(0 != main_~p3~0#1); 8168#L156-1 assume !(0 != main_~p4~0#1); 8163#L161-1 assume !(0 != main_~p5~0#1); 8159#L166-1 assume !(0 != main_~p6~0#1); 8157#L171-1 assume !(0 != main_~p7~0#1); 8156#L176-1 assume !(0 != main_~p8~0#1); 8154#L181-1 assume !(0 != main_~p9~0#1); 8141#L186-1 assume !(0 != main_~p10~0#1); 8122#L191-1 assume !(0 != main_~p11~0#1); 8118#L196-1 assume !(0 != main_~p12~0#1); 8116#L201-1 assume !(0 != main_~p13~0#1); 8106#L206-1 assume !(0 != main_~p14~0#1); 7959#L211-1 [2022-07-22 01:48:44,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:44,092 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 7 times [2022-07-22 01:48:44,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:44,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432166599] [2022-07-22 01:48:44,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:44,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:44,104 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:44,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:44,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1055137337, now seen corresponding path program 1 times [2022-07-22 01:48:44,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:44,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344225519] [2022-07-22 01:48:44,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:44,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:44,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:44,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:44,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344225519] [2022-07-22 01:48:44,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344225519] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:44,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:44,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:44,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101181423] [2022-07-22 01:48:44,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:44,156 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:44,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:44,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:44,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:44,157 INFO L87 Difference]: Start difference. First operand 2626 states and 4034 transitions. cyclomatic complexity: 1472 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:44,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:44,223 INFO L93 Difference]: Finished difference Result 5186 states and 7874 transitions. [2022-07-22 01:48:44,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:44,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5186 states and 7874 transitions. [2022-07-22 01:48:44,264 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 5184 [2022-07-22 01:48:44,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5186 states to 5186 states and 7874 transitions. [2022-07-22 01:48:44,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5186 [2022-07-22 01:48:44,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5186 [2022-07-22 01:48:44,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5186 states and 7874 transitions. [2022-07-22 01:48:44,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:44,305 INFO L369 hiAutomatonCegarLoop]: Abstraction has 5186 states and 7874 transitions. [2022-07-22 01:48:44,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states and 7874 transitions. [2022-07-22 01:48:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5186. [2022-07-22 01:48:44,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 5186 states have (on average 1.5183185499421519) internal successors, (7874), 5185 states have internal predecessors, (7874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 7874 transitions. [2022-07-22 01:48:44,466 INFO L392 hiAutomatonCegarLoop]: Abstraction has 5186 states and 7874 transitions. [2022-07-22 01:48:44,466 INFO L374 stractBuchiCegarLoop]: Abstraction has 5186 states and 7874 transitions. [2022-07-22 01:48:44,466 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-22 01:48:44,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5186 states and 7874 transitions. [2022-07-22 01:48:44,491 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 5184 [2022-07-22 01:48:44,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:44,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:44,493 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:44,493 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:44,494 INFO L752 eck$LassoCheckResult]: Stem: 15796#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 15777#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 15778#L211-1 [2022-07-22 01:48:44,494 INFO L754 eck$LassoCheckResult]: Loop: 15778#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 16332#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 16329#L88 assume !(0 != main_~p1~0#1); 16326#L88-2 assume !(0 != main_~p2~0#1); 16324#L92-1 assume !(0 != main_~p3~0#1); 16321#L96-1 assume !(0 != main_~p4~0#1); 16317#L100-1 assume !(0 != main_~p5~0#1); 16314#L104-1 assume !(0 != main_~p6~0#1); 16311#L108-1 assume !(0 != main_~p7~0#1); 16140#L112-1 assume !(0 != main_~p8~0#1); 16142#L116-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 16090#L120-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 16091#L124-1 assume !(0 != main_~p11~0#1); 16082#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 16083#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 16481#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 16477#L140-1 assume !(0 != main_~p1~0#1); 16066#L146-1 assume !(0 != main_~p2~0#1); 16068#L151-1 assume !(0 != main_~p3~0#1); 16057#L156-1 assume !(0 != main_~p4~0#1); 16059#L161-1 assume !(0 != main_~p5~0#1); 16363#L166-1 assume !(0 != main_~p6~0#1); 16361#L171-1 assume !(0 != main_~p7~0#1); 16359#L176-1 assume !(0 != main_~p8~0#1); 16357#L181-1 assume !(0 != main_~p9~0#1); 16352#L186-1 assume !(0 != main_~p10~0#1); 16349#L191-1 assume !(0 != main_~p11~0#1); 16345#L196-1 assume !(0 != main_~p12~0#1); 16341#L201-1 assume !(0 != main_~p13~0#1); 16337#L206-1 assume !(0 != main_~p14~0#1); 15778#L211-1 [2022-07-22 01:48:44,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:44,495 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 8 times [2022-07-22 01:48:44,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:44,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885174712] [2022-07-22 01:48:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:44,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:44,519 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:44,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:44,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:44,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1477839163, now seen corresponding path program 1 times [2022-07-22 01:48:44,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:44,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100214795] [2022-07-22 01:48:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:44,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:44,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:44,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:44,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100214795] [2022-07-22 01:48:44,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100214795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:44,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:44,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:44,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134957349] [2022-07-22 01:48:44,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:44,600 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:44,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:44,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:44,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:44,601 INFO L87 Difference]: Start difference. First operand 5186 states and 7874 transitions. cyclomatic complexity: 2816 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:44,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:44,672 INFO L93 Difference]: Finished difference Result 10242 states and 15362 transitions. [2022-07-22 01:48:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:44,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10242 states and 15362 transitions. [2022-07-22 01:48:44,746 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 10240 [2022-07-22 01:48:44,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10242 states to 10242 states and 15362 transitions. [2022-07-22 01:48:44,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10242 [2022-07-22 01:48:44,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10242 [2022-07-22 01:48:44,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10242 states and 15362 transitions. [2022-07-22 01:48:44,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:44,830 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10242 states and 15362 transitions. [2022-07-22 01:48:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10242 states and 15362 transitions. [2022-07-22 01:48:45,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10242 to 10242. [2022-07-22 01:48:45,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10242 states, 10242 states have (on average 1.4999023628197619) internal successors, (15362), 10241 states have internal predecessors, (15362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10242 states to 10242 states and 15362 transitions. [2022-07-22 01:48:45,062 INFO L392 hiAutomatonCegarLoop]: Abstraction has 10242 states and 15362 transitions. [2022-07-22 01:48:45,062 INFO L374 stractBuchiCegarLoop]: Abstraction has 10242 states and 15362 transitions. [2022-07-22 01:48:45,062 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-22 01:48:45,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10242 states and 15362 transitions. [2022-07-22 01:48:45,102 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 10240 [2022-07-22 01:48:45,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:45,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:45,103 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:45,103 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:45,137 INFO L752 eck$LassoCheckResult]: Stem: 31228#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 31211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 31212#L211-1 [2022-07-22 01:48:45,137 INFO L754 eck$LassoCheckResult]: Loop: 31212#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 31931#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 31927#L88 assume !(0 != main_~p1~0#1); 31923#L88-2 assume !(0 != main_~p2~0#1); 31921#L92-1 assume !(0 != main_~p3~0#1); 31917#L96-1 assume !(0 != main_~p4~0#1); 31913#L100-1 assume !(0 != main_~p5~0#1); 31910#L104-1 assume !(0 != main_~p6~0#1); 31911#L108-1 assume !(0 != main_~p7~0#1); 31996#L112-1 assume !(0 != main_~p8~0#1); 31993#L116-1 assume !(0 != main_~p9~0#1); 31991#L120-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 31989#L124-1 assume !(0 != main_~p11~0#1); 31987#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 31985#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 31982#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 31978#L140-1 assume !(0 != main_~p1~0#1); 31974#L146-1 assume !(0 != main_~p2~0#1); 31972#L151-1 assume !(0 != main_~p3~0#1); 31968#L156-1 assume !(0 != main_~p4~0#1); 31965#L161-1 assume !(0 != main_~p5~0#1); 31964#L166-1 assume !(0 != main_~p6~0#1); 31962#L171-1 assume !(0 != main_~p7~0#1); 31958#L176-1 assume !(0 != main_~p8~0#1); 31954#L181-1 assume !(0 != main_~p9~0#1); 31950#L186-1 assume !(0 != main_~p10~0#1); 31947#L191-1 assume !(0 != main_~p11~0#1); 31943#L196-1 assume !(0 != main_~p12~0#1); 31939#L201-1 assume !(0 != main_~p13~0#1); 31935#L206-1 assume !(0 != main_~p14~0#1); 31212#L211-1 [2022-07-22 01:48:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 9 times [2022-07-22 01:48:45,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:45,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543874182] [2022-07-22 01:48:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:45,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:45,142 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:45,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:45,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:45,151 INFO L85 PathProgramCache]: Analyzing trace with hash 660190713, now seen corresponding path program 1 times [2022-07-22 01:48:45,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:45,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091373313] [2022-07-22 01:48:45,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:45,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:45,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:45,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091373313] [2022-07-22 01:48:45,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091373313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:45,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:45,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:45,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924063010] [2022-07-22 01:48:45,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:45,190 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:45,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:45,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:45,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:45,192 INFO L87 Difference]: Start difference. First operand 10242 states and 15362 transitions. cyclomatic complexity: 5376 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:45,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:45,275 INFO L93 Difference]: Finished difference Result 20226 states and 29954 transitions. [2022-07-22 01:48:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:45,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20226 states and 29954 transitions. [2022-07-22 01:48:45,379 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 20224 [2022-07-22 01:48:45,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20226 states to 20226 states and 29954 transitions. [2022-07-22 01:48:45,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20226 [2022-07-22 01:48:45,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20226 [2022-07-22 01:48:45,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20226 states and 29954 transitions. [2022-07-22 01:48:45,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:45,586 INFO L369 hiAutomatonCegarLoop]: Abstraction has 20226 states and 29954 transitions. [2022-07-22 01:48:45,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20226 states and 29954 transitions. [2022-07-22 01:48:45,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20226 to 20226. [2022-07-22 01:48:45,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20226 states, 20226 states have (on average 1.4809650944329082) internal successors, (29954), 20225 states have internal predecessors, (29954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20226 states to 20226 states and 29954 transitions. [2022-07-22 01:48:45,971 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20226 states and 29954 transitions. [2022-07-22 01:48:45,971 INFO L374 stractBuchiCegarLoop]: Abstraction has 20226 states and 29954 transitions. [2022-07-22 01:48:45,971 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-22 01:48:45,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20226 states and 29954 transitions. [2022-07-22 01:48:46,044 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 20224 [2022-07-22 01:48:46,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:46,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:46,045 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:46,045 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:46,045 INFO L752 eck$LassoCheckResult]: Stem: 61703#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 61684#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 61685#L211-1 [2022-07-22 01:48:46,046 INFO L754 eck$LassoCheckResult]: Loop: 61685#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 62023#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 62020#L88 assume !(0 != main_~p1~0#1); 62016#L88-2 assume !(0 != main_~p2~0#1); 62013#L92-1 assume !(0 != main_~p3~0#1); 62010#L96-1 assume !(0 != main_~p4~0#1); 62006#L100-1 assume !(0 != main_~p5~0#1); 62002#L104-1 assume !(0 != main_~p6~0#1); 61995#L108-1 assume !(0 != main_~p7~0#1); 61996#L112-1 assume !(0 != main_~p8~0#1); 62085#L116-1 assume !(0 != main_~p9~0#1); 62081#L120-1 assume !(0 != main_~p10~0#1); 62079#L124-1 assume !(0 != main_~p11~0#1); 62077#L128-1 assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1; 62075#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 62073#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 62069#L140-1 assume !(0 != main_~p1~0#1); 62065#L146-1 assume !(0 != main_~p2~0#1); 62062#L151-1 assume !(0 != main_~p3~0#1); 62057#L156-1 assume !(0 != main_~p4~0#1); 62053#L161-1 assume !(0 != main_~p5~0#1); 62049#L166-1 assume !(0 != main_~p6~0#1); 62047#L171-1 assume !(0 != main_~p7~0#1); 62045#L176-1 assume !(0 != main_~p8~0#1); 62043#L181-1 assume !(0 != main_~p9~0#1); 62041#L186-1 assume !(0 != main_~p10~0#1); 62040#L191-1 assume !(0 != main_~p11~0#1); 62036#L196-1 assume !(0 != main_~p12~0#1); 62032#L201-1 assume !(0 != main_~p13~0#1); 62028#L206-1 assume !(0 != main_~p14~0#1); 61685#L211-1 [2022-07-22 01:48:46,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:46,046 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 10 times [2022-07-22 01:48:46,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:46,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059704322] [2022-07-22 01:48:46,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:46,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:46,058 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:46,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1028753029, now seen corresponding path program 1 times [2022-07-22 01:48:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:46,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119712568] [2022-07-22 01:48:46,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:46,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:46,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119712568] [2022-07-22 01:48:46,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119712568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:46,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:46,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901310515] [2022-07-22 01:48:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:46,088 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:46,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:46,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:46,095 INFO L87 Difference]: Start difference. First operand 20226 states and 29954 transitions. cyclomatic complexity: 10240 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:46,296 INFO L93 Difference]: Finished difference Result 39938 states and 58370 transitions. [2022-07-22 01:48:46,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:46,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39938 states and 58370 transitions. [2022-07-22 01:48:46,682 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 39936 [2022-07-22 01:48:46,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39938 states to 39938 states and 58370 transitions. [2022-07-22 01:48:46,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39938 [2022-07-22 01:48:47,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39938 [2022-07-22 01:48:47,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39938 states and 58370 transitions. [2022-07-22 01:48:47,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:47,055 INFO L369 hiAutomatonCegarLoop]: Abstraction has 39938 states and 58370 transitions. [2022-07-22 01:48:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39938 states and 58370 transitions. [2022-07-22 01:48:47,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39938 to 39938. [2022-07-22 01:48:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39938 states, 39938 states have (on average 1.4615153487906254) internal successors, (58370), 39937 states have internal predecessors, (58370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:47,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39938 states to 39938 states and 58370 transitions. [2022-07-22 01:48:47,673 INFO L392 hiAutomatonCegarLoop]: Abstraction has 39938 states and 58370 transitions. [2022-07-22 01:48:47,673 INFO L374 stractBuchiCegarLoop]: Abstraction has 39938 states and 58370 transitions. [2022-07-22 01:48:47,674 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-22 01:48:47,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39938 states and 58370 transitions. [2022-07-22 01:48:47,939 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 39936 [2022-07-22 01:48:47,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:47,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:47,940 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:47,940 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:47,941 INFO L752 eck$LassoCheckResult]: Stem: 121875#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 121856#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 121857#L211-1 [2022-07-22 01:48:47,941 INFO L754 eck$LassoCheckResult]: Loop: 121857#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 122012#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 122010#L88 assume !(0 != main_~p1~0#1); 122006#L88-2 assume !(0 != main_~p2~0#1); 122004#L92-1 assume !(0 != main_~p3~0#1); 122000#L96-1 assume !(0 != main_~p4~0#1); 121996#L100-1 assume !(0 != main_~p5~0#1); 121992#L104-1 assume !(0 != main_~p6~0#1); 121988#L108-1 assume !(0 != main_~p7~0#1); 121984#L112-1 assume !(0 != main_~p8~0#1); 121980#L116-1 assume !(0 != main_~p9~0#1); 121976#L120-1 assume !(0 != main_~p10~0#1); 121974#L124-1 assume !(0 != main_~p11~0#1); 121970#L128-1 assume !(0 != main_~p12~0#1); 121968#L132-1 assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1; 121966#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 121963#L140-1 assume !(0 != main_~p1~0#1); 121964#L146-1 assume !(0 != main_~p2~0#1); 122060#L151-1 assume !(0 != main_~p3~0#1); 122055#L156-1 assume !(0 != main_~p4~0#1); 122051#L161-1 assume !(0 != main_~p5~0#1); 122047#L166-1 assume !(0 != main_~p6~0#1); 122043#L171-1 assume !(0 != main_~p7~0#1); 122039#L176-1 assume !(0 != main_~p8~0#1); 122035#L181-1 assume !(0 != main_~p9~0#1); 122031#L186-1 assume !(0 != main_~p10~0#1); 122028#L191-1 assume !(0 != main_~p11~0#1); 122023#L196-1 assume !(0 != main_~p12~0#1); 122020#L201-1 assume !(0 != main_~p13~0#1); 122016#L206-1 assume !(0 != main_~p14~0#1); 121857#L211-1 [2022-07-22 01:48:47,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:47,942 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 11 times [2022-07-22 01:48:47,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:47,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403240529] [2022-07-22 01:48:47,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:47,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:47,955 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:47,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:47,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:47,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1677866365, now seen corresponding path program 1 times [2022-07-22 01:48:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:47,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055453385] [2022-07-22 01:48:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:47,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:47,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:47,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:47,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055453385] [2022-07-22 01:48:47,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055453385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:47,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:47,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:48:47,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328958503] [2022-07-22 01:48:47,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:47,977 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:47,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:47,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:47,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:47,979 INFO L87 Difference]: Start difference. First operand 39938 states and 58370 transitions. cyclomatic complexity: 19456 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:48,309 INFO L93 Difference]: Finished difference Result 78850 states and 113666 transitions. [2022-07-22 01:48:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:48,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78850 states and 113666 transitions. [2022-07-22 01:48:48,671 INFO L131 ngComponentsAnalysis]: Automaton has 2048 accepting balls. 78848 [2022-07-22 01:48:49,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78850 states to 78850 states and 113666 transitions. [2022-07-22 01:48:49,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 78850 [2022-07-22 01:48:49,134 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78850 [2022-07-22 01:48:49,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78850 states and 113666 transitions. [2022-07-22 01:48:49,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:49,199 INFO L369 hiAutomatonCegarLoop]: Abstraction has 78850 states and 113666 transitions. [2022-07-22 01:48:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78850 states and 113666 transitions. [2022-07-22 01:48:49,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78850 to 78850. [2022-07-22 01:48:49,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78850 states, 78850 states have (on average 1.4415472415979709) internal successors, (113666), 78849 states have internal predecessors, (113666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78850 states to 78850 states and 113666 transitions. [2022-07-22 01:48:50,124 INFO L392 hiAutomatonCegarLoop]: Abstraction has 78850 states and 113666 transitions. [2022-07-22 01:48:50,125 INFO L374 stractBuchiCegarLoop]: Abstraction has 78850 states and 113666 transitions. [2022-07-22 01:48:50,125 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-22 01:48:50,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78850 states and 113666 transitions. [2022-07-22 01:48:50,587 INFO L131 ngComponentsAnalysis]: Automaton has 2048 accepting balls. 78848 [2022-07-22 01:48:50,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:50,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:50,588 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:50,589 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:50,589 INFO L752 eck$LassoCheckResult]: Stem: 240669#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 240648#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 240649#L211-1 [2022-07-22 01:48:50,589 INFO L754 eck$LassoCheckResult]: Loop: 240649#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 241123#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 241119#L88 assume !(0 != main_~p1~0#1); 241113#L88-2 assume !(0 != main_~p2~0#1); 241108#L92-1 assume !(0 != main_~p3~0#1); 241104#L96-1 assume !(0 != main_~p4~0#1); 241098#L100-1 assume !(0 != main_~p5~0#1); 241068#L104-1 assume !(0 != main_~p6~0#1); 241070#L108-1 assume !(0 != main_~p7~0#1); 241092#L112-1 assume !(0 != main_~p8~0#1); 241206#L116-1 assume !(0 != main_~p9~0#1); 241203#L120-1 assume !(0 != main_~p10~0#1); 241200#L124-1 assume !(0 != main_~p11~0#1); 241197#L128-1 assume !(0 != main_~p12~0#1); 241193#L132-1 assume !(0 != main_~p13~0#1); 241194#L136-1 assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1; 241224#L140-1 assume !(0 != main_~p1~0#1); 241222#L146-1 assume !(0 != main_~p2~0#1); 241221#L151-1 assume !(0 != main_~p3~0#1); 241218#L156-1 assume !(0 != main_~p4~0#1); 241216#L161-1 assume !(0 != main_~p5~0#1); 241214#L166-1 assume !(0 != main_~p6~0#1); 241007#L171-1 assume !(0 != main_~p7~0#1); 241002#L176-1 assume !(0 != main_~p8~0#1); 240997#L181-1 assume !(0 != main_~p9~0#1); 240992#L186-1 assume !(0 != main_~p10~0#1); 240993#L191-1 assume !(0 != main_~p11~0#1); 240982#L196-1 assume !(0 != main_~p12~0#1); 240984#L201-1 assume !(0 != main_~p13~0#1); 241131#L206-1 assume !(0 != main_~p14~0#1); 240649#L211-1 [2022-07-22 01:48:50,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 12 times [2022-07-22 01:48:50,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:50,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159391327] [2022-07-22 01:48:50,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:50,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:50,594 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:50,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:50,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash 656798011, now seen corresponding path program 1 times [2022-07-22 01:48:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:50,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52644029] [2022-07-22 01:48:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:50,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:48:50,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:48:50,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:48:50,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52644029] [2022-07-22 01:48:50,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52644029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:48:50,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:48:50,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:48:50,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946822309] [2022-07-22 01:48:50,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:48:50,617 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:48:50,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:48:50,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:48:50,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:48:50,618 INFO L87 Difference]: Start difference. First operand 78850 states and 113666 transitions. cyclomatic complexity: 36864 Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:51,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:48:51,076 INFO L93 Difference]: Finished difference Result 155650 states and 221186 transitions. [2022-07-22 01:48:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:48:51,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155650 states and 221186 transitions. [2022-07-22 01:48:52,175 INFO L131 ngComponentsAnalysis]: Automaton has 4096 accepting balls. 155648 [2022-07-22 01:48:52,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155650 states to 155650 states and 221186 transitions. [2022-07-22 01:48:52,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155650 [2022-07-22 01:48:52,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155650 [2022-07-22 01:48:52,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155650 states and 221186 transitions. [2022-07-22 01:48:52,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:48:52,821 INFO L369 hiAutomatonCegarLoop]: Abstraction has 155650 states and 221186 transitions. [2022-07-22 01:48:52,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155650 states and 221186 transitions. [2022-07-22 01:48:54,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155650 to 155650. [2022-07-22 01:48:54,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155650 states, 155650 states have (on average 1.4210472213299068) internal successors, (221186), 155649 states have internal predecessors, (221186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:48:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155650 states to 155650 states and 221186 transitions. [2022-07-22 01:48:55,243 INFO L392 hiAutomatonCegarLoop]: Abstraction has 155650 states and 221186 transitions. [2022-07-22 01:48:55,243 INFO L374 stractBuchiCegarLoop]: Abstraction has 155650 states and 221186 transitions. [2022-07-22 01:48:55,243 INFO L287 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2022-07-22 01:48:55,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155650 states and 221186 transitions. [2022-07-22 01:48:55,705 INFO L131 ngComponentsAnalysis]: Automaton has 4096 accepting balls. 155648 [2022-07-22 01:48:55,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:48:55,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:48:55,708 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:48:55,708 INFO L180 hiAutomatonCegarLoop]: Counterexample loop 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] [2022-07-22 01:48:55,708 INFO L752 eck$LassoCheckResult]: Stem: 475174#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 475155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_~cond~0#1; 475156#L211-1 [2022-07-22 01:48:55,708 INFO L754 eck$LassoCheckResult]: Loop: 475156#L211-1 assume !false;main_~cond~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1; 476630#L55 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0; 476626#L88 assume !(0 != main_~p1~0#1); 476622#L88-2 assume !(0 != main_~p2~0#1); 476620#L92-1 assume !(0 != main_~p3~0#1); 476615#L96-1 assume !(0 != main_~p4~0#1); 476603#L100-1 assume !(0 != main_~p5~0#1); 476604#L104-1 assume !(0 != main_~p6~0#1); 476674#L108-1 assume !(0 != main_~p7~0#1); 476661#L112-1 assume !(0 != main_~p8~0#1); 476659#L116-1 assume !(0 != main_~p9~0#1); 476569#L120-1 assume !(0 != main_~p10~0#1); 476571#L124-1 assume !(0 != main_~p11~0#1); 476544#L128-1 assume !(0 != main_~p12~0#1); 476546#L132-1 assume !(0 != main_~p13~0#1); 476521#L136-1 assume !(0 != main_~p14~0#1); 476523#L140-1 assume !(0 != main_~p1~0#1); 476485#L146-1 assume !(0 != main_~p2~0#1); 476487#L151-1 assume !(0 != main_~p3~0#1); 476475#L156-1 assume !(0 != main_~p4~0#1); 476477#L161-1 assume !(0 != main_~p5~0#1); 476335#L166-1 assume !(0 != main_~p6~0#1); 476336#L171-1 assume !(0 != main_~p7~0#1); 476428#L176-1 assume !(0 != main_~p8~0#1); 476650#L181-1 assume !(0 != main_~p9~0#1); 476647#L186-1 assume !(0 != main_~p10~0#1); 476646#L191-1 assume !(0 != main_~p11~0#1); 476643#L196-1 assume !(0 != main_~p12~0#1); 476639#L201-1 assume !(0 != main_~p13~0#1); 476635#L206-1 assume !(0 != main_~p14~0#1); 475156#L211-1 [2022-07-22 01:48:55,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:55,709 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 13 times [2022-07-22 01:48:55,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:55,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519352246] [2022-07-22 01:48:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:55,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:55,713 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:55,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:55,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:55,717 INFO L85 PathProgramCache]: Analyzing trace with hash -623065667, now seen corresponding path program 1 times [2022-07-22 01:48:55,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:55,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228156725] [2022-07-22 01:48:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:55,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:55,721 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:55,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:55,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:48:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1839024639, now seen corresponding path program 1 times [2022-07-22 01:48:55,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:48:55,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562157280] [2022-07-22 01:48:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:48:55,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:48:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:55,738 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:48:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:48:55,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:48:56,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:48:56 BoogieIcfgContainer [2022-07-22 01:48:56,130 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:48:56,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:48:56,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:48:56,130 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:48:56,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:48:42" (3/4) ... [2022-07-22 01:48:56,133 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 01:48:56,166 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 01:48:56,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:48:56,167 INFO L158 Benchmark]: Toolchain (without parser) took 14181.58ms. Allocated memory was 52.4MB in the beginning and 11.0GB in the end (delta: 11.0GB). Free memory was 29.4MB in the beginning and 9.5GB in the end (delta: -9.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-07-22 01:48:56,167 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory was 34.5MB in the beginning and 34.5MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:48:56,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.08ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.1MB in the beginning and 45.6MB in the end (delta: -16.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-22 01:48:56,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.58ms. Allocated memory is still 62.9MB. Free memory was 45.6MB in the beginning and 43.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:48:56,168 INFO L158 Benchmark]: Boogie Preprocessor took 50.94ms. Allocated memory is still 62.9MB. Free memory was 43.9MB in the beginning and 42.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:48:56,168 INFO L158 Benchmark]: RCFGBuilder took 438.82ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 44.7MB in the end (delta: -2.2MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-07-22 01:48:56,168 INFO L158 Benchmark]: BuchiAutomizer took 13353.87ms. Allocated memory was 62.9MB in the beginning and 11.0GB in the end (delta: 11.0GB). Free memory was 44.7MB in the beginning and 9.5GB in the end (delta: -9.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-07-22 01:48:56,169 INFO L158 Benchmark]: Witness Printer took 35.99ms. Allocated memory is still 11.0GB. Free memory was 9.5GB in the beginning and 9.5GB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:48:56,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory was 34.5MB in the beginning and 34.5MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.08ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.1MB in the beginning and 45.6MB in the end (delta: -16.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.58ms. Allocated memory is still 62.9MB. Free memory was 45.6MB in the beginning and 43.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.94ms. Allocated memory is still 62.9MB. Free memory was 43.9MB in the beginning and 42.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.82ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 44.7MB in the end (delta: -2.2MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 13353.87ms. Allocated memory was 62.9MB in the beginning and 11.0GB in the end (delta: 11.0GB). Free memory was 44.7MB in the beginning and 9.5GB in the end (delta: -9.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 35.99ms. Allocated memory is still 11.0GB. Free memory was 9.5GB in the beginning and 9.5GB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (12 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.12 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 155650 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.2s and 13 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 12. Minimization of nondet autom 0. Automata minimization 4.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 3.6s Buchi closure took 0.2s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 690 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 690 mSDsluCounter, 2157 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 833 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 1324 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI12 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 53]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {p11=0, p13=0, lk5=0, p1=0, NULL=0, lk13=0, p9=0, lk9=0, NULL=1, lk12=0, cond=4, p5=0, p12=0, p10=0, lk2=0, p4=0, p14=0, p8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45623bca=0, lk6=0, lk11=0, lk1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b38c0c2=0, p3=0, lk3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f25f575=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@359cfe51=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30ec3a07=0, p7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@534ac7ec=0, \result=0, lk10=0, lk7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bf0f16b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f9821b4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3821cd74=0, p6=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69cce475=0, lk14=0, p2=0, lk4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c3e2f2e=4, lk8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b426b79=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45f96224=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59641b5e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5785b34b=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 53]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; Loop: [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 [L88] COND FALSE !(p1 != 0) [L92] COND FALSE !(p2 != 0) [L96] COND FALSE !(p3 != 0) [L100] COND FALSE !(p4 != 0) [L104] COND FALSE !(p5 != 0) [L108] COND FALSE !(p6 != 0) [L112] COND FALSE !(p7 != 0) [L116] COND FALSE !(p8 != 0) [L120] COND FALSE !(p9 != 0) [L124] COND FALSE !(p10 != 0) [L128] COND FALSE !(p11 != 0) [L132] COND FALSE !(p12 != 0) [L136] COND FALSE !(p13 != 0) [L140] COND FALSE !(p14 != 0) [L146] COND FALSE !(p1 != 0) [L151] COND FALSE !(p2 != 0) [L156] COND FALSE !(p3 != 0) [L161] COND FALSE !(p4 != 0) [L166] COND FALSE !(p5 != 0) [L171] COND FALSE !(p6 != 0) [L176] COND FALSE !(p7 != 0) [L181] COND FALSE !(p8 != 0) [L186] COND FALSE !(p9 != 0) [L191] COND FALSE !(p10 != 0) [L196] COND FALSE !(p11 != 0) [L201] COND FALSE !(p12 != 0) [L206] COND FALSE !(p13 != 0) [L211] COND FALSE !(p14 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 01:48:56,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)