./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU --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 64bit --witnessprinter.graph.data.programhash 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:42:27,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:42:27,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:42:27,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:42:27,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:42:27,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:42:27,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:42:27,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:42:27,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:42:27,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:42:27,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:42:27,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:42:27,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:42:27,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:42:27,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:42:27,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:42:27,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:42:27,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:42:27,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:42:27,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:42:27,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:42:27,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:42:27,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:42:27,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:42:27,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:42:27,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:42:27,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:42:27,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:42:27,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:42:27,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:42:27,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:42:27,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:42:27,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:42:27,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:42:27,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:42:27,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:42:27,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:42:27,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:42:27,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:42:27,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:42:27,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:42:27,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-02 22:42:27,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:42:27,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:42:27,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:42:27,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:42:27,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:42:27,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:42:27,728 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:42:27,728 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:42:27,729 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:42:27,729 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:42:27,729 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:42:27,729 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:42:27,730 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:42:27,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:42:27,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:42:27,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:42:27,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:42:27,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:42:27,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:42:27,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:42:27,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:42:27,732 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:42:27,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:42:27,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:42:27,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:42:27,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:42:27,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:42:27,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:42:27,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:42:27,735 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:42:27,735 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c [2021-11-02 22:42:28,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:42:28,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:42:28,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:42:28,062 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:42:28,063 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:42:28,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-11-02 22:42:28,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/data/56b0a0d12/c3bf3db49e90461e9df211c3acbc910e/FLAG02ccec3ac [2021-11-02 22:42:28,605 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:42:28,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-11-02 22:42:28,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/data/56b0a0d12/c3bf3db49e90461e9df211c3acbc910e/FLAG02ccec3ac [2021-11-02 22:42:28,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/data/56b0a0d12/c3bf3db49e90461e9df211c3acbc910e [2021-11-02 22:42:29,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:42:29,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:42:29,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:42:29,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:42:29,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:42:29,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14814702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29, skipping insertion in model container [2021-11-02 22:42:29,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:42:29,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:42:29,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:42:29,243 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:42:29,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:42:29,283 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:42:29,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29 WrapperNode [2021-11-02 22:42:29,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:42:29,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:42:29,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:42:29,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:42:29,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:42:29,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:42:29,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:42:29,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:42:29,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:42:29,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:42:29,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:42:29,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:42:29,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (1/1) ... [2021-11-02 22:42:29,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:29,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:29,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:29,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:42:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:42:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:42:29,580 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:42:29,580 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-02 22:42:29,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:42:29 BoogieIcfgContainer [2021-11-02 22:42:29,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:42:29,585 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:42:29,585 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:42:29,588 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:42:29,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:42:29,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:42:29" (1/3) ... [2021-11-02 22:42:29,591 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f1d9ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:42:29, skipping insertion in model container [2021-11-02 22:42:29,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:42:29,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:42:29" (2/3) ... [2021-11-02 22:42:29,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f1d9ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:42:29, skipping insertion in model container [2021-11-02 22:42:29,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:42:29,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:42:29" (3/3) ... [2021-11-02 22:42:29,593 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-11-02 22:42:29,673 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:42:29,674 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:42:29,674 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:42:29,674 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:42:29,674 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:42:29,674 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:42:29,674 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:42:29,675 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:42:29,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-02 22:42:29,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-02 22:42:29,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:42:29,709 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:42:29,714 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:42:29,715 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-02 22:42:29,715 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:42:29,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-02 22:42:29,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-02 22:42:29,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:42:29,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:42:29,717 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:42:29,718 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-02 22:42:29,724 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L17true assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 8#L21-2true [2021-11-02 22:42:29,725 INFO L793 eck$LassoCheckResult]: Loop: 8#L21-2true assume !!(main_~v1~0 > 0); 6#L21true assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 8#L21-2true [2021-11-02 22:42:29,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:29,734 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-11-02 22:42:29,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:29,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596770589] [2021-11-02 22:42:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:29,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:29,835 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:42:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:29,867 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:42:29,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:29,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2021-11-02 22:42:29,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:29,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54339136] [2021-11-02 22:42:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:29,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:29,897 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:42:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:29,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:42:29,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2021-11-02 22:42:29,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:29,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038913947] [2021-11-02 22:42:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:29,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:29,933 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:42:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:29,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:42:30,028 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:42:30,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:42:30,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:42:30,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:42:30,030 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 22:42:30,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:42:30,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:42:30,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2021-11-02 22:42:30,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:42:30,031 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:42:30,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:30,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:30,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:30,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:30,188 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:42:30,189 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 22:42:30,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:30,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:30,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 22:42:30,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:30,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:30,241 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 22:42:30,242 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 22:42:30,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:30,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:30,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:30,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 22:42:30,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:30,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:30,315 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 22:42:30,315 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 22:42:30,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:30,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:30,349 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:30,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 22:42:30,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:30,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:30,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-02 22:42:30,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:30,392 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:30,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 22:42:30,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:30,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 22:42:30,566 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 22:42:30,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-02 22:42:30,570 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:42:30,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:42:30,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:42:30,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:42:30,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:42:30,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:42:30,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:42:30,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2021-11-02 22:42:30,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:42:30,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:42:30,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:30,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:30,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:30,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:30,649 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:42:30,653 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:42:30,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:30,656 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:30,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 22:42:30,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:30,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:30,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:30,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:30,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:30,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:42:30,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:42:30,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:42:30,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:30,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:30,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:30,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:30,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:30,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:30,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:30,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:30,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:42:30,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:42:30,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 22:42:30,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:42:30,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:30,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:30,842 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:30,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:30,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:30,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:42:30,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:30,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:30,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:30,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:42:30,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:42:30,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 22:42:30,878 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:42:30,885 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-02 22:42:30,885 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 22:42:30,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:30,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:30,888 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:30,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 22:42:30,919 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:42:30,919 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 22:42:30,919 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:42:30,920 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~v2~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2021-11-02 22:42:30,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:30,943 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 22:42:30,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:31,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:42:31,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:31,029 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:42:31,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:42:31,085 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-02 22:42:31,086 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-02 22:42:31,122 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 28 states and 35 transitions. Complement of second has 6 states. [2021-11-02 22:42:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:42:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-02 22:42:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-11-02 22:42:31,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-02 22:42:31,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:31,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-02 22:42:31,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:31,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-02 22:42:31,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:31,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-11-02 22:42:31,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-02 22:42:31,135 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-11-02 22:42:31,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-02 22:42:31,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-02 22:42:31,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-11-02 22:42:31,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:42:31,137 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-02 22:42:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-11-02 22:42:31,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-02 22:42:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-02 22:42:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-11-02 22:42:31,157 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-02 22:42:31,158 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-02 22:42:31,158 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:42:31,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-11-02 22:42:31,159 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-02 22:42:31,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:42:31,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:42:31,159 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-02 22:42:31,159 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-02 22:42:31,160 INFO L791 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 72#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 73#L21-2 assume !!(main_~v1~0 > 0); 75#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 76#L21-2 [2021-11-02 22:42:31,160 INFO L793 eck$LassoCheckResult]: Loop: 76#L21-2 assume !!(main_~v1~0 > 0); 79#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 76#L21-2 [2021-11-02 22:42:31,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:31,160 INFO L85 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2021-11-02 22:42:31,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:31,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894662854] [2021-11-02 22:42:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:31,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:42:31,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:42:31,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894662854] [2021-11-02 22:42:31,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894662854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:42:31,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:42:31,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:42:31,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25530472] [2021-11-02 22:42:31,204 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 22:42:31,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2021-11-02 22:42:31,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:31,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090059648] [2021-11-02 22:42:31,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:31,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:31,211 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:42:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:31,215 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:42:31,246 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:42:31,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:42:31,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:42:31,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:42:31,247 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 22:42:31,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:31,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:42:31,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:42:31,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2021-11-02 22:42:31,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:42:31,248 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:42:31,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:31,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:31,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:31,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:31,311 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:42:31,311 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 22:42:31,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:31,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:31,315 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:31,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:31,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:31,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 22:42:31,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 22:42:31,345 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 22:42:31,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:31,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:31,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:31,383 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:31,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:31,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:31,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 22:42:31,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:31,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:31,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:31,441 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:31,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 22:42:31,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:31,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 22:42:31,619 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 22:42:31,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:31,625 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:42:31,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:42:31,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:42:31,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:42:31,626 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:42:31,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:31,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:42:31,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:42:31,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2021-11-02 22:42:31,626 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:42:31,626 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:42:31,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:31,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:31,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:31,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:31,706 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:42:31,706 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:42:31,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:31,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:31,711 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:31,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:31,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:31,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:31,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:31,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:31,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:42:31,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:42:31,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 22:42:31,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:42:31,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-11-02 22:42:31,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:31,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:31,784 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:31,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:31,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:31,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:42:31,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:31,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:31,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:31,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 22:42:31,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:42:31,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:42:31,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:42:31,818 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 22:42:31,818 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-02 22:42:31,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:31,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:31,824 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:31,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:42:31,829 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 22:42:31,830 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:42:31,830 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~v2~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~v2~0 Supporting invariants [] [2021-11-02 22:42:31,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 22:42:31,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:31,870 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 22:42:31,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:31,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:42:31,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:31,909 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:42:31,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:42:31,922 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-02 22:42:31,922 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-02 22:42:31,931 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 12 states and 17 transitions. Complement of second has 5 states. [2021-11-02 22:42:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:42:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-02 22:42:31,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-11-02 22:42:31,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-02 22:42:31,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:31,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-02 22:42:31,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:31,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-11-02 22:42:31,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:31,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-11-02 22:42:31,935 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-02 22:42:31,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2021-11-02 22:42:31,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-02 22:42:31,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-02 22:42:31,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-11-02 22:42:31,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:42:31,937 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-02 22:42:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-11-02 22:42:31,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-02 22:42:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-11-02 22:42:31,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-11-02 22:42:31,939 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-02 22:42:31,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:42:31,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:42:31,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:42:31,943 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-02 22:42:31,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:42:31,956 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2021-11-02 22:42:31,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:42:31,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2021-11-02 22:42:31,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-02 22:42:31,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2021-11-02 22:42:31,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-02 22:42:31,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-02 22:42:31,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-11-02 22:42:31,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:42:31,959 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-02 22:42:31,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-11-02 22:42:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-11-02 22:42:31,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 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) [2021-11-02 22:42:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-11-02 22:42:31,961 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-11-02 22:42:31,961 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-11-02 22:42:31,961 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:42:31,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-11-02 22:42:31,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-02 22:42:31,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:42:31,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:42:31,962 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2021-11-02 22:42:31,962 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-02 22:42:31,963 INFO L791 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 155#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 156#L21-2 assume !!(main_~v1~0 > 0); 160#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 161#L21-2 assume !!(main_~v1~0 > 0); 158#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 159#L21-2 assume !!(main_~v1~0 > 0); 164#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 162#L21-2 [2021-11-02 22:42:31,963 INFO L793 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~v1~0 > 0); 163#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 162#L21-2 [2021-11-02 22:42:31,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:31,963 INFO L85 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2021-11-02 22:42:31,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:31,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776994955] [2021-11-02 22:42:31,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:31,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:42:32,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:42:32,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776994955] [2021-11-02 22:42:32,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776994955] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:42:32,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016732922] [2021-11-02 22:42:32,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:32,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:42:32,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:32,037 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:42:32,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-02 22:42:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:32,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 22:42:32,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:32,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:42:32,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016732922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:42:32,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:42:32,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-11-02 22:42:32,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792113089] [2021-11-02 22:42:32,133 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 22:42:32,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2021-11-02 22:42:32,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:32,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729166706] [2021-11-02 22:42:32,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:32,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:32,140 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:42:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:32,143 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:42:32,169 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:42:32,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:42:32,169 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:42:32,169 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:42:32,169 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 22:42:32,169 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:32,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:42:32,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:42:32,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2021-11-02 22:42:32,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:42:32,170 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:42:32,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:32,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:32,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:32,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:32,230 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:42:32,230 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 22:42:32,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:32,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:32,234 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:32,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:32,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:32,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 22:42:32,288 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 22:42:32,288 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 22:42:32,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:32,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:32,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:32,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:32,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:32,417 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:32,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-02 22:42:32,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:32,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:32,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:32,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:32,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:32,475 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:32,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-02 22:42:32,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 22:42:32,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:32,618 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 22:42:32,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-11-02 22:42:32,621 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:42:32,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:42:32,621 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:42:32,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:42:32,622 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:42:32,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:32,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:42:32,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:42:32,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2021-11-02 22:42:32,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:42:32,622 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:42:32,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:32,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:32,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:32,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:32,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:42:32,694 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:42:32,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:32,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:32,696 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:32,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-02 22:42:32,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:32,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:32,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:32,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:32,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:32,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:42:32,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:42:32,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:42:32,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:32,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:32,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:32,780 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:32,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:32,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:32,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:42:32,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:32,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:32,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:32,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:42:32,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:42:32,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-02 22:42:32,822 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:42:32,827 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 22:42:32,827 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 22:42:32,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:32,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:32,829 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:32,834 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:42:32,834 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 22:42:32,834 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:42:32,834 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~v2~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2021-11-02 22:42:32,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-02 22:42:32,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:32,872 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 22:42:32,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:32,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:42:32,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:32,941 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:42:32,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:32,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:42:32,949 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-02 22:42:32,950 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 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) [2021-11-02 22:42:32,957 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. 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) Result 14 states and 20 transitions. Complement of second has 5 states. [2021-11-02 22:42:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:42:32,958 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-11-02 22:42:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-11-02 22:42:32,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-02 22:42:32,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:32,959 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-02 22:42:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:32,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:42:32,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:33,021 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:42:33,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:42:33,030 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-02 22:42:33,030 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 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) [2021-11-02 22:42:33,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. 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) Result 14 states and 20 transitions. Complement of second has 5 states. [2021-11-02 22:42:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:42:33,043 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-11-02 22:42:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-11-02 22:42:33,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-02 22:42:33,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:33,044 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-02 22:42:33,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:33,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:42:33,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:33,104 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:42:33,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:42:33,119 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-02 22:42:33,119 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 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) [2021-11-02 22:42:33,131 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. 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) Result 16 states and 23 transitions. Complement of second has 4 states. [2021-11-02 22:42:33,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:42:33,132 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-11-02 22:42:33,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-11-02 22:42:33,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-02 22:42:33,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:33,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2021-11-02 22:42:33,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:33,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2021-11-02 22:42:33,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:33,134 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2021-11-02 22:42:33,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-02 22:42:33,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2021-11-02 22:42:33,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-02 22:42:33,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-02 22:42:33,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-11-02 22:42:33,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:42:33,143 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-11-02 22:42:33,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-11-02 22:42:33,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2021-11-02 22:42:33,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-11-02 22:42:33,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-11-02 22:42:33,148 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-02 22:42:33,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:42:33,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:42:33,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:42:33,149 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-11-02 22:42:33,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:42:33,158 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-11-02 22:42:33,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:42:33,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-11-02 22:42:33,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 22:42:33,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2021-11-02 22:42:33,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-02 22:42:33,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-02 22:42:33,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2021-11-02 22:42:33,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:42:33,161 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-02 22:42:33,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2021-11-02 22:42:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2021-11-02 22:42:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-02 22:42:33,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-11-02 22:42:33,162 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-11-02 22:42:33,162 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-11-02 22:42:33,163 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 22:42:33,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-11-02 22:42:33,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-02 22:42:33,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:42:33,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:42:33,166 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:42:33,166 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-11-02 22:42:33,167 INFO L791 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 368#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 369#L21-2 [2021-11-02 22:42:33,167 INFO L793 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~v1~0 > 0); 372#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 373#L21-2 assume !!(main_~v1~0 > 0); 371#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 369#L21-2 [2021-11-02 22:42:33,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:33,167 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2021-11-02 22:42:33,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:33,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124863888] [2021-11-02 22:42:33,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:33,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:33,181 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:42:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:33,195 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:42:33,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:33,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2021-11-02 22:42:33,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:33,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219458002] [2021-11-02 22:42:33,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:33,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:33,201 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:42:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:33,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:42:33,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2021-11-02 22:42:33,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:42:33,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205792030] [2021-11-02 22:42:33,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:42:33,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:42:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:33,229 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:42:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:42:33,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:42:33,320 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:42:33,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:42:33,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:42:33,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:42:33,320 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 22:42:33,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:42:33,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:42:33,321 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration4_Loop [2021-11-02 22:42:33,321 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:42:33,321 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:42:33,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:33,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:33,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:33,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:33,392 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:42:33,393 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 22:42:33,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:33,394 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:33,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:33,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:33,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-02 22:42:33,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 22:42:33,427 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~v2~0=0, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~v2~0=0, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 22:42:33,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:33,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:33,449 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:33,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-02 22:42:33,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:33,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:33,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 22:42:33,472 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 22:42:33,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-02 22:42:33,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:33,507 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:33,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:42:33,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:33,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-02 22:42:33,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:33,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:33,572 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:33,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 22:42:33,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:42:33,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-02 22:42:33,691 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 22:42:33,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:33,698 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:42:33,698 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:42:33,699 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:42:33,699 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:42:33,699 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:42:33,699 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,699 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:42:33,699 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:42:33,699 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration4_Loop [2021-11-02 22:42:33,699 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:42:33,699 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:42:33,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:33,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:33,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:33,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:42:33,767 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:42:33,767 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:42:33,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:33,769 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:33,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:33,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:33,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:42:33,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:33,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:33,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:33,782 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:42:33,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:42:33,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-02 22:42:33,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:42:33,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:33,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:33,832 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:33,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:42:33,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:42:33,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:42:33,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:42:33,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:42:33,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:42:33,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:42:33,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:42:33,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-02 22:42:33,866 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:42:33,870 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 22:42:33,871 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 22:42:33,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:42:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:42:33,875 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:42:33,877 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:42:33,878 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 22:42:33,878 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:42:33,878 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0) = 1*ULTIMATE.start_main_~v1~0 Supporting invariants [] [2021-11-02 22:42:33,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-02 22:42:33,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:33,916 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 22:42:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:42:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:33,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:42:33,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:42:33,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:42:33,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:42:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:42:33,990 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-02 22:42:33,991 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-11-02 22:42:34,009 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) Result 13 states and 15 transitions. Complement of second has 6 states. [2021-11-02 22:42:34,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-02 22:42:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-11-02 22:42:34,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-11-02 22:42:34,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-02 22:42:34,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:34,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-02 22:42:34,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:34,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2021-11-02 22:42:34,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:42:34,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-11-02 22:42:34,014 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:42:34,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2021-11-02 22:42:34,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 22:42:34,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 22:42:34,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 22:42:34,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:42:34,015 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:42:34,015 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:42:34,015 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:42:34,015 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-02 22:42:34,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:42:34,016 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:42:34,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 22:42:34,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:42:34 BoogieIcfgContainer [2021-11-02 22:42:34,022 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:42:34,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:42:34,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:42:34,025 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:42:34,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:42:29" (3/4) ... [2021-11-02 22:42:34,028 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 22:42:34,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:42:34,030 INFO L168 Benchmark]: Toolchain (without parser) took 5026.46 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 72.9 MB in the beginning and 54.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:42:34,039 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:42:34,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.60 ms. Allocated memory is still 104.9 MB. Free memory was 72.7 MB in the beginning and 80.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:42:34,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:42:34,042 INFO L168 Benchmark]: Boogie Preprocessor took 17.57 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 78.7 MB in the end (delta: 828.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:42:34,042 INFO L168 Benchmark]: RCFGBuilder took 251.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.3 MB in the beginning and 70.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:42:34,043 INFO L168 Benchmark]: BuchiAutomizer took 4437.49 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 70.9 MB in the beginning and 55.8 MB in the end (delta: 15.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:42:34,046 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 132.1 MB. Free memory was 55.8 MB in the beginning and 54.8 MB in the end (delta: 952.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:42:34,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.60 ms. Allocated memory is still 104.9 MB. Free memory was 72.7 MB in the beginning and 80.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.57 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 78.7 MB in the end (delta: 828.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 251.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.3 MB in the beginning and 70.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4437.49 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 70.9 MB in the beginning and 55.8 MB in the end (delta: 15.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.13 ms. Allocated memory is still 132.1 MB. Free memory was 55.8 MB in the beginning and 54.8 MB in the end (delta: 952.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function m + -1 * v2 and consists of 4 locations. One deterministic module has affine ranking function m + -1 * v2 and consists of 3 locations. One deterministic module has affine ranking function v1 and consists of 4 locations. One nondeterministic module has affine ranking function m + -1 * v2 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 35 SDslu, 12 SDs, 0 SdLazy, 33 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 22:42:34,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-02 22:42:34,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-11-02 22:42:34,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-11-02 22:42:34,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623acd06-0c18-4428-8fc9-218528b3110c/bin/uautomizer-tBqnrhUYjU/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 Writing output log to file Ultimate.log Result: TRUE