./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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_5.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 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:07:00,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:07:00,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:07:00,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:07:00,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:07:00,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:07:00,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:07:00,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:07:00,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:07:00,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:07:00,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:07:00,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:07:00,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:07:00,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:07:00,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:07:00,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:07:00,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:07:00,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:07:00,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:07:00,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:07:00,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:07:00,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:07:00,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:07:00,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:07:00,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:07:00,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:07:00,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:07:00,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:07:00,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:07:00,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:07:00,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:07:00,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:07:00,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:07:00,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:07:00,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:07:00,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:07:00,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:07:00,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:07:00,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:07:00,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:07:00,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:07:00,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:07:00,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:07:00,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:07:00,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:07:00,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:07:00,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:07:00,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:07:00,357 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:07:00,357 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:07:00,357 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:07:00,357 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:07:00,357 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:07:00,357 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:07:00,357 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:07:00,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:07:00,358 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:07:00,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:07:00,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:07:00,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:07:00,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:07:00,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:07:00,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:07:00,377 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:07:00,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 [2021-12-15 17:07:00,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:07:00,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:07:00,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:07:00,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:07:00,780 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:07:00,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_5.c [2021-12-15 17:07:00,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b3399af/09b4bd57651b4c2ebeda9194043ddf5b/FLAG2876f70a0 [2021-12-15 17:07:01,226 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:07:01,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_5.c [2021-12-15 17:07:01,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b3399af/09b4bd57651b4c2ebeda9194043ddf5b/FLAG2876f70a0 [2021-12-15 17:07:01,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b3399af/09b4bd57651b4c2ebeda9194043ddf5b [2021-12-15 17:07:01,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:07:01,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:07:01,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:07:01,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:07:01,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:07:01,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f60f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01, skipping insertion in model container [2021-12-15 17:07:01,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:07:01,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:07:01,430 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_5.c[2207,2220] [2021-12-15 17:07:01,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:07:01,451 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:07:01,463 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_5.c[2207,2220] [2021-12-15 17:07:01,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:07:01,481 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:07:01,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01 WrapperNode [2021-12-15 17:07:01,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:07:01,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:07:01,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:07:01,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:07:01,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,511 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2021-12-15 17:07:01,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:07:01,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:07:01,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:07:01,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:07:01,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:07:01,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:07:01,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:07:01,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:07:01,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (1/1) ... [2021-12-15 17:07:01,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:07:01,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:07:01,569 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) [2021-12-15 17:07:01,572 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 [2021-12-15 17:07:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:07:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:07:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:07:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:07:01,654 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:07:01,655 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:07:01,745 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:07:01,749 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:07:01,750 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:07:01,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:07:01 BoogieIcfgContainer [2021-12-15 17:07:01,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:07:01,752 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:07:01,752 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:07:01,754 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:07:01,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:01,755 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:07:01" (1/3) ... [2021-12-15 17:07:01,756 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69d853ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:07:01, skipping insertion in model container [2021-12-15 17:07:01,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:01,756 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:01" (2/3) ... [2021-12-15 17:07:01,756 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69d853ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:07:01, skipping insertion in model container [2021-12-15 17:07:01,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:01,757 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:07:01" (3/3) ... [2021-12-15 17:07:01,757 INFO L388 chiAutomizerObserver]: Analyzing ICFG test_locks_5.c [2021-12-15 17:07:01,786 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:07:01,787 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:07:01,787 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:07:01,787 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:07:01,787 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:07:01,787 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:07:01,787 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:07:01,787 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:07:01,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 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) [2021-12-15 17:07:01,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2021-12-15 17:07:01,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:01,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:01,814 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:01,814 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:07:01,814 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:07:01,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 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) [2021-12-15 17:07:01,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2021-12-15 17:07:01,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:01,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:01,817 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:01,817 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:07:01,822 INFO L791 eck$LassoCheckResult]: Stem: 6#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(15, 2);call #Ultimate.allocInit(12, 3); 14#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_~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_~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;havoc main_~cond~0#1; 8#L85-1true [2021-12-15 17:07:01,822 INFO L793 eck$LassoCheckResult]: Loop: 8#L85-1true assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 23#L28true 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; 9#L43true assume 0 != main_~p1~0#1;main_~lk1~0#1 := 1; 10#L43-2true assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 19#L47-1true assume !(0 != main_~p3~0#1); 17#L51-1true assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 18#L55-1true assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 21#L59-1true assume !(0 != main_~p1~0#1); 11#L65-1true assume !(0 != main_~p2~0#1); 20#L70-1true assume !(0 != main_~p3~0#1); 22#L75-1true assume !(0 != main_~p4~0#1); 24#L80-1true assume !(0 != main_~p5~0#1); 8#L85-1true [2021-12-15 17:07:01,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:01,826 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 17:07:01,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:01,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284511740] [2021-12-15 17:07:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:01,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:01,929 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:01,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:01,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2089480461, now seen corresponding path program 1 times [2021-12-15 17:07:01,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:01,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114844710] [2021-12-15 17:07:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:01,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:07:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:07:02,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:07:02,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114844710] [2021-12-15 17:07:02,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114844710] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:07:02,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:07:02,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:07:02,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081376956] [2021-12-15 17:07:02,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:07:02,029 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:07:02,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:07:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:07:02,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:07:02,053 INFO L87 Difference]: Start difference. First operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 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 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-12-15 17:07:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:07:02,072 INFO L93 Difference]: Finished difference Result 45 states and 70 transitions. [2021-12-15 17:07:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:07:02,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 70 transitions. [2021-12-15 17:07:02,083 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2021-12-15 17:07:02,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 35 states and 53 transitions. [2021-12-15 17:07:02,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-12-15 17:07:02,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-12-15 17:07:02,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 53 transitions. [2021-12-15 17:07:02,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:07:02,088 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2021-12-15 17:07:02,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 53 transitions. [2021-12-15 17:07:02,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-12-15 17:07:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 34 states have internal predecessors, (53), 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) [2021-12-15 17:07:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2021-12-15 17:07:02,107 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2021-12-15 17:07:02,107 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2021-12-15 17:07:02,107 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:07:02,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 53 transitions. [2021-12-15 17:07:02,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2021-12-15 17:07:02,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:02,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:02,109 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:02,109 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:07:02,109 INFO L791 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 81#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 79#L85-1 [2021-12-15 17:07:02,110 INFO L793 eck$LassoCheckResult]: Loop: 79#L85-1 assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 84#L28 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; 100#L43 assume !(0 != main_~p1~0#1); 87#L43-2 assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 88#L47-1 assume !(0 != main_~p3~0#1); 93#L51-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 94#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 95#L59-1 assume !(0 != main_~p1~0#1); 101#L65-1 assume !(0 != main_~p2~0#1); 111#L70-1 assume !(0 != main_~p3~0#1); 98#L75-1 assume !(0 != main_~p4~0#1); 92#L80-1 assume !(0 != main_~p5~0#1); 79#L85-1 [2021-12-15 17:07:02,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,110 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-15 17:07:02,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310234058] [2021-12-15 17:07:02,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,126 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,138 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1812459825, now seen corresponding path program 1 times [2021-12-15 17:07:02,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026817525] [2021-12-15 17:07:02,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:07:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:07:02,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:07:02,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026817525] [2021-12-15 17:07:02,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026817525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:07:02,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:07:02,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:07:02,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460437599] [2021-12-15 17:07:02,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:07:02,172 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:07:02,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:07:02,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:07:02,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:07:02,173 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-12-15 17:07:02,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:07:02,183 INFO L93 Difference]: Finished difference Result 66 states and 98 transitions. [2021-12-15 17:07:02,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:07:02,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 98 transitions. [2021-12-15 17:07:02,186 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2021-12-15 17:07:02,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 98 transitions. [2021-12-15 17:07:02,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-12-15 17:07:02,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2021-12-15 17:07:02,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions. [2021-12-15 17:07:02,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:07:02,188 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2021-12-15 17:07:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions. [2021-12-15 17:07:02,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-12-15 17:07:02,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 65 states have internal predecessors, (98), 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) [2021-12-15 17:07:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2021-12-15 17:07:02,193 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2021-12-15 17:07:02,193 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2021-12-15 17:07:02,193 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:07:02,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 98 transitions. [2021-12-15 17:07:02,194 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2021-12-15 17:07:02,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:02,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:02,195 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:02,195 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:07:02,195 INFO L791 eck$LassoCheckResult]: Stem: 189#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(15, 2);call #Ultimate.allocInit(12, 3); 190#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_~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_~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;havoc main_~cond~0#1; 200#L85-1 [2021-12-15 17:07:02,195 INFO L793 eck$LassoCheckResult]: Loop: 200#L85-1 assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 224#L28 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; 222#L43 assume !(0 != main_~p1~0#1); 219#L43-2 assume !(0 != main_~p2~0#1); 217#L47-1 assume !(0 != main_~p3~0#1); 215#L51-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 214#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 212#L59-1 assume !(0 != main_~p1~0#1); 213#L65-1 assume !(0 != main_~p2~0#1); 235#L70-1 assume !(0 != main_~p3~0#1); 231#L75-1 assume !(0 != main_~p4~0#1); 228#L80-1 assume !(0 != main_~p5~0#1); 200#L85-1 [2021-12-15 17:07:02,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-12-15 17:07:02,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547525965] [2021-12-15 17:07:02,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,201 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:02,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1802449101, now seen corresponding path program 1 times [2021-12-15 17:07:02,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815647090] [2021-12-15 17:07:02,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:07:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:07:02,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:07:02,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815647090] [2021-12-15 17:07:02,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815647090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:07:02,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:07:02,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:07:02,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979589017] [2021-12-15 17:07:02,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:07:02,227 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:07:02,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:07:02,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:07:02,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:07:02,228 INFO L87 Difference]: Start difference. First operand 66 states and 98 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-12-15 17:07:02,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:07:02,247 INFO L93 Difference]: Finished difference Result 126 states and 182 transitions. [2021-12-15 17:07:02,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:07:02,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 182 transitions. [2021-12-15 17:07:02,253 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-12-15 17:07:02,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 182 transitions. [2021-12-15 17:07:02,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2021-12-15 17:07:02,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2021-12-15 17:07:02,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 182 transitions. [2021-12-15 17:07:02,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:07:02,258 INFO L681 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-12-15 17:07:02,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 182 transitions. [2021-12-15 17:07:02,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-12-15 17:07:02,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 125 states have internal predecessors, (182), 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) [2021-12-15 17:07:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions. [2021-12-15 17:07:02,266 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-12-15 17:07:02,266 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2021-12-15 17:07:02,266 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-15 17:07:02,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 182 transitions. [2021-12-15 17:07:02,267 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-12-15 17:07:02,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:02,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:02,268 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:02,268 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:07:02,268 INFO L791 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 386#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 400#L85-1 [2021-12-15 17:07:02,268 INFO L793 eck$LassoCheckResult]: Loop: 400#L85-1 assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 435#L28 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; 431#L43 assume !(0 != main_~p1~0#1); 428#L43-2 assume !(0 != main_~p2~0#1); 426#L47-1 assume !(0 != main_~p3~0#1); 425#L51-1 assume !(0 != main_~p4~0#1); 421#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 422#L59-1 assume !(0 != main_~p1~0#1); 447#L65-1 assume !(0 != main_~p2~0#1); 445#L70-1 assume !(0 != main_~p3~0#1); 442#L75-1 assume !(0 != main_~p4~0#1); 439#L80-1 assume !(0 != main_~p5~0#1); 400#L85-1 [2021-12-15 17:07:02,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,269 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2021-12-15 17:07:02,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808980054] [2021-12-15 17:07:02,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,275 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:02,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,280 INFO L85 PathProgramCache]: Analyzing trace with hash -27441739, now seen corresponding path program 1 times [2021-12-15 17:07:02,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024069303] [2021-12-15 17:07:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:07:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:07:02,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:07:02,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024069303] [2021-12-15 17:07:02,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024069303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:07:02,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:07:02,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 17:07:02,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625383481] [2021-12-15 17:07:02,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:07:02,297 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:07:02,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:07:02,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:07:02,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:07:02,298 INFO L87 Difference]: Start difference. First operand 126 states and 182 transitions. cyclomatic complexity: 64 Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-12-15 17:07:02,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:07:02,309 INFO L93 Difference]: Finished difference Result 242 states and 338 transitions. [2021-12-15 17:07:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:07:02,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 242 states and 338 transitions. [2021-12-15 17:07:02,312 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2021-12-15 17:07:02,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 242 states to 242 states and 338 transitions. [2021-12-15 17:07:02,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 242 [2021-12-15 17:07:02,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 242 [2021-12-15 17:07:02,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 242 states and 338 transitions. [2021-12-15 17:07:02,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:07:02,315 INFO L681 BuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2021-12-15 17:07:02,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states and 338 transitions. [2021-12-15 17:07:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-12-15 17:07:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.396694214876033) internal successors, (338), 241 states have internal predecessors, (338), 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) [2021-12-15 17:07:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions. [2021-12-15 17:07:02,325 INFO L704 BuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2021-12-15 17:07:02,325 INFO L587 BuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2021-12-15 17:07:02,325 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-15 17:07:02,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 338 transitions. [2021-12-15 17:07:02,327 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2021-12-15 17:07:02,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:02,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:02,327 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:02,327 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:07:02,328 INFO L791 eck$LassoCheckResult]: Stem: 759#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(15, 2);call #Ultimate.allocInit(12, 3); 760#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_~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_~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;havoc main_~cond~0#1; 773#L85-1 [2021-12-15 17:07:02,328 INFO L793 eck$LassoCheckResult]: Loop: 773#L85-1 assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 836#L28 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; 833#L43 assume !(0 != main_~p1~0#1); 829#L43-2 assume !(0 != main_~p2~0#1); 826#L47-1 assume !(0 != main_~p3~0#1); 820#L51-1 assume !(0 != main_~p4~0#1); 795#L55-1 assume !(0 != main_~p5~0#1); 796#L59-1 assume !(0 != main_~p1~0#1); 853#L65-1 assume !(0 != main_~p2~0#1); 842#L70-1 assume !(0 != main_~p3~0#1); 821#L75-1 assume !(0 != main_~p4~0#1); 823#L80-1 assume !(0 != main_~p5~0#1); 773#L85-1 [2021-12-15 17:07:02,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2021-12-15 17:07:02,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511568834] [2021-12-15 17:07:02,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,333 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,337 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:02,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,338 INFO L85 PathProgramCache]: Analyzing trace with hash 29816563, now seen corresponding path program 1 times [2021-12-15 17:07:02,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607173380] [2021-12-15 17:07:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,342 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,346 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:02,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1243965365, now seen corresponding path program 1 times [2021-12-15 17:07:02,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:02,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400920698] [2021-12-15 17:07:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:02,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,352 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:02,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:02,451 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:855) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:07:02,456 INFO L158 Benchmark]: Toolchain (without parser) took 1200.00ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 67.9MB in the beginning and 59.4MB in the end (delta: 8.5MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-12-15 17:07:02,458 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 96.5MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:07:02,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.07ms. Allocated memory is still 96.5MB. Free memory was 67.6MB in the beginning and 72.9MB in the end (delta: -5.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-12-15 17:07:02,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.79ms. Allocated memory is still 96.5MB. Free memory was 72.9MB in the beginning and 71.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:07:02,460 INFO L158 Benchmark]: Boogie Preprocessor took 28.17ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 70.4MB in the end (delta: 998.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:07:02,460 INFO L158 Benchmark]: RCFGBuilder took 209.95ms. Allocated memory is still 96.5MB. Free memory was 70.4MB in the beginning and 61.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 17:07:02,462 INFO L158 Benchmark]: BuchiAutomizer took 703.51ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-15 17:07:02,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 96.5MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.07ms. Allocated memory is still 96.5MB. Free memory was 67.6MB in the beginning and 72.9MB in the end (delta: -5.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.79ms. Allocated memory is still 96.5MB. Free memory was 72.9MB in the beginning and 71.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.17ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 70.4MB in the end (delta: 998.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 209.95ms. Allocated memory is still 96.5MB. Free memory was 70.4MB in the beginning and 61.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 703.51ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:07:02,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable