./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/systemc/mem_slave_tlm.3.cil.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/systemc/mem_slave_tlm.3.cil.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 16b89964825dc5b7831662ee1568f8465e0e5c35795cab8e4e81d90352bde374 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:20:16,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:20:16,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:20:16,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:20:16,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:20:16,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:20:16,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:20:16,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:20:16,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:20:16,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:20:16,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:20:16,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:20:16,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:20:16,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:20:16,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:20:16,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:20:16,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:20:16,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:20:16,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:20:16,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:20:16,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:20:16,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:20:16,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:20:16,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:20:16,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:20:16,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:20:16,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:20:16,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:20:16,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:20:16,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:20:16,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:20:16,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:20:16,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:20:16,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:20:16,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:20:16,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:20:16,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:20:16,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:20:16,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:20:16,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:20:16,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:20:16,853 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:20:16,871 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:20:16,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:20:16,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:20:16,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:20:16,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:20:16,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:20:16,874 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:20:16,874 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:20:16,874 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:20:16,874 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:20:16,875 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:20:16,875 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:20:16,875 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:20:16,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:20:16,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:20:16,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:20:16,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:20:16,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:20:16,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:20:16,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:20:16,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:20:16,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:20:16,877 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:20:16,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:20:16,878 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:20:16,878 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:20:16,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:20:16,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:20:16,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:20:16,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:20:16,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:20:16,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:20:16,880 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:20:16,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b89964825dc5b7831662ee1568f8465e0e5c35795cab8e4e81d90352bde374 [2021-12-15 17:20:17,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:20:17,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:20:17,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:20:17,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:20:17,110 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:20:17,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/mem_slave_tlm.3.cil.c [2021-12-15 17:20:17,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264ed65d1/312509c871a64f0ab0143f02b3f80e33/FLAGe42f1f774 [2021-12-15 17:20:17,575 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:20:17,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.3.cil.c [2021-12-15 17:20:17,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264ed65d1/312509c871a64f0ab0143f02b3f80e33/FLAGe42f1f774 [2021-12-15 17:20:17,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264ed65d1/312509c871a64f0ab0143f02b3f80e33 [2021-12-15 17:20:17,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:20:17,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:20:17,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:20:17,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:20:17,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:20:17,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:20:17" (1/1) ... [2021-12-15 17:20:17,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b20529c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:17, skipping insertion in model container [2021-12-15 17:20:17,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:20:17" (1/1) ... [2021-12-15 17:20:17,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:20:17,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:20:17,816 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/systemc/mem_slave_tlm.3.cil.c[646,659] [2021-12-15 17:20:17,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:20:17,911 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:20:17,923 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/systemc/mem_slave_tlm.3.cil.c[646,659] [2021-12-15 17:20:18,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:20:18,040 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:20:18,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18 WrapperNode [2021-12-15 17:20:18,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:20:18,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:20:18,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:20:18,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:20:18,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,127 INFO L137 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 873 [2021-12-15 17:20:18,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:20:18,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:20:18,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:20:18,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:20:18,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:20:18,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:20:18,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:20:18,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:20:18,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:20:18,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:20:18,241 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 17:20:18,272 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 17:20:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:20:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:20:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:20:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:20:18,403 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:20:18,420 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:20:18,997 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:20:19,005 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:20:19,005 INFO L301 CfgBuilder]: Removed 13 assume(true) statements. [2021-12-15 17:20:19,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:20:19 BoogieIcfgContainer [2021-12-15 17:20:19,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:20:19,008 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:20:19,008 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:20:19,011 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:20:19,012 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:20:19,012 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:20:17" (1/3) ... [2021-12-15 17:20:19,012 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62e0ea42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:20:19, skipping insertion in model container [2021-12-15 17:20:19,012 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:20:19,013 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (2/3) ... [2021-12-15 17:20:19,013 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62e0ea42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:20:19, skipping insertion in model container [2021-12-15 17:20:19,013 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:20:19,013 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:20:19" (3/3) ... [2021-12-15 17:20:19,014 INFO L388 chiAutomizerObserver]: Analyzing ICFG mem_slave_tlm.3.cil.c [2021-12-15 17:20:19,047 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:20:19,047 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:20:19,048 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:20:19,048 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:20:19,048 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:20:19,048 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:20:19,048 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:20:19,048 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:20:19,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 276 states, 275 states have (on average 1.8254545454545454) internal successors, (502), 275 states have internal predecessors, (502), 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 17:20:19,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 252 [2021-12-15 17:20:19,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:20:19,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:20:19,124 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:19,124 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:19,125 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:20:19,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 276 states, 275 states have (on average 1.8254545454545454) internal successors, (502), 275 states have internal predecessors, (502), 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 17:20:19,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 252 [2021-12-15 17:20:19,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:20:19,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:20:19,136 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:19,136 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:19,147 INFO L791 eck$LassoCheckResult]: Stem: 256#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(22, 2);call #Ultimate.allocInit(12, 3);~m_run_st~0 := 0;~m_run_i~0 := 0;~m_run_pc~0 := 0;~s_memory0~0 := 0;~s_memory1~0 := 0;~s_memory2~0 := 0;~s_run_st~0 := 0;~s_run_i~0 := 0;~s_run_pc~0 := 0;~c_m_lock~0 := 0;~c_m_ev~0 := 0;~c_req_type~0 := 0;~c_req_a~0 := 0;~c_req_d~0 := 0;~c_rsp_type~0 := 0;~c_rsp_status~0 := 0;~c_rsp_d~0 := 0;~c_empty_req~0 := 0;~c_empty_rsp~0 := 0;~c_read_req_ev~0 := 0;~c_write_req_ev~0 := 0;~c_read_rsp_ev~0 := 0;~c_write_rsp_ev~0 := 0;~d_t~0 := 0;~a_t~0 := 0;~req_t_type~0 := 0;~req_t_a~0 := 0;~req_t_d~0 := 0;~rsp_t_type~0 := 0;~rsp_t_status~0 := 0;~rsp_t_d~0 := 0;~req_tt_type~0 := 0;~req_tt_a~0 := 0;~req_tt_d~0 := 0;~rsp_tt_type~0 := 0;~rsp_tt_status~0 := 0;~rsp_tt_d~0 := 0;~req_t_type___0~0 := 0;~req_t_a___0~0 := 0;~req_t_d___0~0 := 0;~rsp_t_type___0~0 := 0;~rsp_t_status___0~0 := 0;~rsp_t_d___0~0 := 0; 179#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~0#1;havoc main_~__retres1~0#1;~c_m_lock~0 := 0;~c_m_ev~0 := 2;~m_run_i~0 := 1;~m_run_pc~0 := 0;~s_run_i~0 := 1;~s_run_pc~0 := 0;~c_empty_req~0 := 1;~c_empty_rsp~0 := 1;~c_read_req_ev~0 := 2;~c_write_req_ev~0 := 2;~c_read_rsp_ev~0 := 2;~c_write_rsp_ev~0 := 2;~c_m_lock~0 := 0;~c_m_ev~0 := 2;assume { :begin_inline_start_simulation } true;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~kernel_st~0#1;start_simulation_~kernel_st~0#1 := 0; 239#L1182true assume !(1 == ~m_run_i~0);~m_run_st~0 := 2; 103#L1182-2true assume !(1 == ~s_run_i~0);~s_run_st~0 := 2; 43#L1187-1true assume 1 == ~m_run_pc~0; 213#L1193true assume 1 == ~c_m_ev~0;~m_run_st~0 := 0; 148#L1232true assume !(2 == ~s_run_pc~0); 67#L1253true assume !(1 == ~s_run_pc~0); 249#L1348-1true [2021-12-15 17:20:19,147 INFO L793 eck$LassoCheckResult]: Loop: 249#L1348-1true assume !false; 35#L1266true start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~nondet5#1, eval_#t~nondet6#1, eval_~tmp~0#1, eval_~tmp___0~0#1;havoc eval_~tmp~0#1;havoc eval_~tmp___0~0#1; 30#L1155true assume !true; 48#L1171true assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;start_simulation_~kernel_st~0#1 := 3; 245#L1273true assume 1 == ~m_run_pc~0; 38#L1274true assume 1 == ~c_m_ev~0;~m_run_st~0 := 0; 269#L1313true assume !(2 == ~s_run_pc~0); 182#L1334true assume !(1 == ~s_run_pc~0); 173#L1335true assume 0 == ~m_run_st~0; 249#L1348-1true [2021-12-15 17:20:19,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:20:19,152 INFO L85 PathProgramCache]: Analyzing trace with hash 180491512, now seen corresponding path program 1 times [2021-12-15 17:20:19,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:20:19,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958327672] [2021-12-15 17:20:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:20:19,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:20:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:20:19,306 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 17:20:19,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:20:19,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958327672] [2021-12-15 17:20:19,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958327672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:20:19,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:20:19,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:20:19,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121378859] [2021-12-15 17:20:19,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:20:19,312 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:20:19,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:20:19,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1204525539, now seen corresponding path program 1 times [2021-12-15 17:20:19,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:20:19,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038224775] [2021-12-15 17:20:19,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:20:19,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:20:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:20:19,322 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 17:20:19,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:20:19,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038224775] [2021-12-15 17:20:19,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038224775] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:20:19,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:20:19,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 17:20:19,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069244635] [2021-12-15 17:20:19,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:20:19,324 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:20:19,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:20:19,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:20:19,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:20:19,364 INFO L87 Difference]: Start difference. First operand has 276 states, 275 states have (on average 1.8254545454545454) internal successors, (502), 275 states have internal predecessors, (502), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 17:20:19,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:20:19,404 INFO L93 Difference]: Finished difference Result 271 states and 465 transitions. [2021-12-15 17:20:19,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:20:19,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 271 states and 465 transitions. [2021-12-15 17:20:19,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 242 [2021-12-15 17:20:19,419 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 271 states to 262 states and 456 transitions. [2021-12-15 17:20:19,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2021-12-15 17:20:19,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 262 [2021-12-15 17:20:19,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 262 states and 456 transitions. [2021-12-15 17:20:19,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:20:19,424 INFO L681 BuchiCegarLoop]: Abstraction has 262 states and 456 transitions. [2021-12-15 17:20:19,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states and 456 transitions. [2021-12-15 17:20:19,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2021-12-15 17:20:19,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 262 states have (on average 1.7404580152671756) internal successors, (456), 261 states have internal predecessors, (456), 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 17:20:19,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 456 transitions. [2021-12-15 17:20:19,460 INFO L704 BuchiCegarLoop]: Abstraction has 262 states and 456 transitions. [2021-12-15 17:20:19,460 INFO L587 BuchiCegarLoop]: Abstraction has 262 states and 456 transitions. [2021-12-15 17:20:19,460 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:20:19,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 262 states and 456 transitions. [2021-12-15 17:20:19,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 242 [2021-12-15 17:20:19,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:20:19,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:20:19,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:19,463 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:19,463 INFO L791 eck$LassoCheckResult]: Stem: 816#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(22, 2);call #Ultimate.allocInit(12, 3);~m_run_st~0 := 0;~m_run_i~0 := 0;~m_run_pc~0 := 0;~s_memory0~0 := 0;~s_memory1~0 := 0;~s_memory2~0 := 0;~s_run_st~0 := 0;~s_run_i~0 := 0;~s_run_pc~0 := 0;~c_m_lock~0 := 0;~c_m_ev~0 := 0;~c_req_type~0 := 0;~c_req_a~0 := 0;~c_req_d~0 := 0;~c_rsp_type~0 := 0;~c_rsp_status~0 := 0;~c_rsp_d~0 := 0;~c_empty_req~0 := 0;~c_empty_rsp~0 := 0;~c_read_req_ev~0 := 0;~c_write_req_ev~0 := 0;~c_read_rsp_ev~0 := 0;~c_write_rsp_ev~0 := 0;~d_t~0 := 0;~a_t~0 := 0;~req_t_type~0 := 0;~req_t_a~0 := 0;~req_t_d~0 := 0;~rsp_t_type~0 := 0;~rsp_t_status~0 := 0;~rsp_t_d~0 := 0;~req_tt_type~0 := 0;~req_tt_a~0 := 0;~req_tt_d~0 := 0;~rsp_tt_type~0 := 0;~rsp_tt_status~0 := 0;~rsp_tt_d~0 := 0;~req_t_type___0~0 := 0;~req_t_a___0~0 := 0;~req_t_d___0~0 := 0;~rsp_t_type___0~0 := 0;~rsp_t_status___0~0 := 0;~rsp_t_d___0~0 := 0; 795#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~0#1;havoc main_~__retres1~0#1;~c_m_lock~0 := 0;~c_m_ev~0 := 2;~m_run_i~0 := 1;~m_run_pc~0 := 0;~s_run_i~0 := 1;~s_run_pc~0 := 0;~c_empty_req~0 := 1;~c_empty_rsp~0 := 1;~c_read_req_ev~0 := 2;~c_write_req_ev~0 := 2;~c_read_rsp_ev~0 := 2;~c_write_rsp_ev~0 := 2;~c_m_lock~0 := 0;~c_m_ev~0 := 2;assume { :begin_inline_start_simulation } true;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~kernel_st~0#1;start_simulation_~kernel_st~0#1 := 0; 796#L1182 assume 1 == ~m_run_i~0;~m_run_st~0 := 0; 735#L1182-2 assume !(1 == ~s_run_i~0);~s_run_st~0 := 2; 645#L1187-1 assume 1 == ~m_run_pc~0; 646#L1193 assume 1 == ~c_m_ev~0;~m_run_st~0 := 0; 714#L1232 assume !(2 == ~s_run_pc~0); 686#L1253 assume !(1 == ~s_run_pc~0); 688#L1348-1 [2021-12-15 17:20:19,463 INFO L793 eck$LassoCheckResult]: Loop: 688#L1348-1 assume !false; 629#L1266 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~nondet5#1, eval_#t~nondet6#1, eval_~tmp~0#1, eval_~tmp___0~0#1;havoc eval_~tmp~0#1;havoc eval_~tmp___0~0#1; 618#L1155 assume !false; 579#L1130 assume !(0 == ~m_run_st~0); 581#L1134 assume !(0 == ~s_run_st~0); 654#L1171 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;start_simulation_~kernel_st~0#1 := 3; 655#L1273 assume 1 == ~m_run_pc~0; 631#L1274 assume 1 == ~c_m_ev~0;~m_run_st~0 := 0; 560#L1313 assume !(2 == ~s_run_pc~0); 785#L1334 assume !(1 == ~s_run_pc~0); 784#L1335 assume 0 == ~m_run_st~0; 688#L1348-1 [2021-12-15 17:20:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:20:19,464 INFO L85 PathProgramCache]: Analyzing trace with hash 123233210, now seen corresponding path program 1 times [2021-12-15 17:20:19,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:20:19,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447087126] [2021-12-15 17:20:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:20:19,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:20:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:20:19,499 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 17:20:19,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:20:19,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447087126] [2021-12-15 17:20:19,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447087126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:20:19,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:20:19,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:20:19,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477569543] [2021-12-15 17:20:19,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:20:19,501 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:20:19,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:20:19,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1144758441, now seen corresponding path program 1 times [2021-12-15 17:20:19,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:20:19,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543883478] [2021-12-15 17:20:19,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:20:19,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:20:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:20:19,507 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:20:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:20:19,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:20:19,594 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:818) 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 17:20:19,598 INFO L158 Benchmark]: Toolchain (without parser) took 1985.07ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 44.8MB in the beginning and 44.5MB in the end (delta: 325.5kB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,598 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 83.9MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:20:19,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.52ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 44.6MB in the beginning and 70.8MB in the end (delta: -26.2MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.25ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 67.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,600 INFO L158 Benchmark]: Boogie Preprocessor took 64.56ms. Allocated memory is still 104.9MB. Free memory was 67.5MB in the beginning and 63.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,600 INFO L158 Benchmark]: RCFGBuilder took 808.66ms. Allocated memory is still 104.9MB. Free memory was 63.9MB in the beginning and 29.7MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,601 INFO L158 Benchmark]: BuchiAutomizer took 588.18ms. Allocated memory is still 104.9MB. Free memory was 29.7MB in the beginning and 44.5MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:20:19,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 83.9MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.52ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 44.6MB in the beginning and 70.8MB in the end (delta: -26.2MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.25ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 67.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.56ms. Allocated memory is still 104.9MB. Free memory was 67.5MB in the beginning and 63.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 808.66ms. Allocated memory is still 104.9MB. Free memory was 63.9MB in the beginning and 29.7MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 588.18ms. Allocated memory is still 104.9MB. Free memory was 29.7MB in the beginning and 44.5MB in the end (delta: -14.8MB). There was no memory consumed. 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 17:20:19,642 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 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