./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sunset.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sunset.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc --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 b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:55:36,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:55:36,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:55:36,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:55:36,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:55:36,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:55:36,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:55:36,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:55:36,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:55:36,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:55:36,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:55:36,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:55:36,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:55:36,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:55:36,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:55:36,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:55:36,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:55:36,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:55:36,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:55:36,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:55:36,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:55:36,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:55:36,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:55:36,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:55:36,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:55:36,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:55:36,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:55:36,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:55:36,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:55:36,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:55:36,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:55:36,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:55:36,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:55:36,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:55:36,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:55:36,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:55:36,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:55:36,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:55:36,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:55:36,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:55:36,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:55:36,156 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:55:36,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:55:36,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:55:36,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:55:36,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:55:36,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:55:36,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:55:36,193 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:55:36,193 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:55:36,193 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:55:36,193 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:55:36,194 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:55:36,194 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:55:36,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:55:36,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:55:36,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:55:36,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:55:36,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:55:36,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:55:36,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:55:36,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:55:36,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:55:36,196 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:55:36,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:55:36,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:55:36,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:55:36,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:55:36,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:55:36,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:55:36,198 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:55:36,199 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_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 [2022-11-02 20:55:36,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:55:36,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:55:36,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:55:36,479 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:55:36,481 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:55:36,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-restricted-15/Sunset.c [2022-11-02 20:55:36,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/data/2dc874918/80ed341713494da0b53d3b85c8a33f1e/FLAG8ff20a215 [2022-11-02 20:55:37,021 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:55:37,022 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/sv-benchmarks/c/termination-restricted-15/Sunset.c [2022-11-02 20:55:37,028 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/data/2dc874918/80ed341713494da0b53d3b85c8a33f1e/FLAG8ff20a215 [2022-11-02 20:55:37,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/data/2dc874918/80ed341713494da0b53d3b85c8a33f1e [2022-11-02 20:55:37,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:55:37,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:55:37,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:55:37,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:55:37,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:55:37,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3d9b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37, skipping insertion in model container [2022-11-02 20:55:37,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:55:37,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:55:37,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:55:37,657 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:55:37,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:55:37,684 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:55:37,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37 WrapperNode [2022-11-02 20:55:37,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:55:37,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:55:37,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:55:37,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:55:37,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,720 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-11-02 20:55:37,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:55:37,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:55:37,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:55:37,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:55:37,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,743 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:55:37,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:55:37,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:55:37,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:55:37,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (1/1) ... [2022-11-02 20:55:37,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:37,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:37,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:37,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:55:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:55:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:55:37,923 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:55:37,926 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:55:38,026 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:55:38,034 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:55:38,034 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:55:38,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:38 BoogieIcfgContainer [2022-11-02 20:55:38,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:55:38,038 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:55:38,038 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:55:38,043 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:55:38,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:55:38,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:55:37" (1/3) ... [2022-11-02 20:55:38,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11b27eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:55:38, skipping insertion in model container [2022-11-02 20:55:38,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:55:38,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:37" (2/3) ... [2022-11-02 20:55:38,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11b27eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:55:38, skipping insertion in model container [2022-11-02 20:55:38,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:55:38,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:38" (3/3) ... [2022-11-02 20:55:38,047 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sunset.c [2022-11-02 20:55:38,112 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:55:38,112 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:55:38,112 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:55:38,112 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:55:38,113 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:55:38,113 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:55:38,113 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:55:38,113 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:55:38,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:38,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:55:38,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:55:38,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:55:38,141 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:55:38,141 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:55:38,142 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:55:38,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:38,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:55:38,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:55:38,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:55:38,144 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:55:38,144 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:55:38,151 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L13-1true [2022-11-02 20:55:38,152 INFO L750 eck$LassoCheckResult]: Loop: 3#L13-1true assume !!(main_~i~0#1 > 10); 6#L10true assume !(25 == main_~i~0#1); 4#L10-2true assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 3#L13-1true [2022-11-02 20:55:38,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:38,158 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:55:38,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:38,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874287109] [2022-11-02 20:55:38,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:38,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:38,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:38,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:38,260 INFO L85 PathProgramCache]: Analyzing trace with hash 40878, now seen corresponding path program 1 times [2022-11-02 20:55:38,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:38,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992995461] [2022-11-02 20:55:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:38,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:38,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:38,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:38,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:38,283 INFO L85 PathProgramCache]: Analyzing trace with hash 28699820, now seen corresponding path program 1 times [2022-11-02 20:55:38,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:38,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631626187] [2022-11-02 20:55:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:38,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:38,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:38,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:38,368 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:55:38,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:55:38,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:55:38,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:55:38,369 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:55:38,369 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:38,370 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:55:38,370 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:55:38,370 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2022-11-02 20:55:38,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:55:38,371 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:55:38,390 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:38,433 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:38,438 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:38,613 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:55:38,614 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:55:38,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:38,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:38,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:38,630 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:38,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:55:38,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:55:38,659 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: [] [2022-11-02 20:55:38,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:38,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:38,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:38,693 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:38,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:55:38,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:38,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:38,736 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:55:38,737 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: [] [2022-11-02 20:55:38,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:38,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:38,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:38,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:38,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:55:38,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:38,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:38,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:38,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:38,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:38,827 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:38,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:55:38,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:55:38,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:38,965 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:55:38,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:38,976 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:55:38,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:55:38,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:55:38,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:55:38,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:55:38,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:38,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:55:38,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:55:38,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2022-11-02 20:55:38,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:55:38,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:55:38,980 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:38,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:38,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:39,111 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:55:39,116 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:55:39,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:39,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:39,119 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:39,130 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 [2022-11-02 20:55:39,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:39,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:39,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:55:39,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:39,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:55:39,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:55:39,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:55:39,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:55:39,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:39,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:39,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:39,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:39,217 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 [2022-11-02 20:55:39,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:55:39,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:39,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:39,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:55:39,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:39,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:55:39,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:55:39,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:55:39,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:39,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:39,287 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:39,294 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 [2022-11-02 20:55:39,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:55:39,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:39,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:55:39,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:39,309 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:55:39,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:39,315 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:55:39,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:55:39,327 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:55:39,358 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-02 20:55:39,359 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:55:39,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:39,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:39,362 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:39,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:55:39,365 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:55:39,365 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:55:39,366 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:55:39,366 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-02 20:55:39,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-02 20:55:39,392 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:55:39,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:39,426 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:55:39,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:39,442 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:55:39,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:39,528 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 20:55:39,530 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:39,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:39,614 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 27 states and 36 transitions. Complement of second has 8 states. [2022-11-02 20:55:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:55:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-02 20:55:39,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-02 20:55:39,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:39,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-02 20:55:39,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:39,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-02 20:55:39,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:39,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2022-11-02 20:55:39,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:55:39,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 10 states and 15 transitions. [2022-11-02 20:55:39,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-02 20:55:39,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-02 20:55:39,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2022-11-02 20:55:39,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:55:39,634 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-11-02 20:55:39,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2022-11-02 20:55:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-02 20:55:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:39,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2022-11-02 20:55:39,663 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-11-02 20:55:39,663 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-11-02 20:55:39,663 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:55:39,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2022-11-02 20:55:39,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:55:39,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:55:39,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:55:39,665 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:55:39,665 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:55:39,666 INFO L748 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 86#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 82#L13-1 assume !!(main_~i~0#1 > 10); 84#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 78#L10-2 [2022-11-02 20:55:39,666 INFO L750 eck$LassoCheckResult]: Loop: 78#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 79#L13-1 assume !!(main_~i~0#1 > 10); 87#L10 assume !(25 == main_~i~0#1); 78#L10-2 [2022-11-02 20:55:39,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:39,667 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-02 20:55:39,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:39,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139022413] [2022-11-02 20:55:39,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:39,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:39,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:39,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:39,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:39,681 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 2 times [2022-11-02 20:55:39,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:39,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041807728] [2022-11-02 20:55:39,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:39,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:39,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:39,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:39,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:39,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664019, now seen corresponding path program 1 times [2022-11-02 20:55:39,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:39,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998196294] [2022-11-02 20:55:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:39,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:39,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:39,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:39,744 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:55:39,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:55:39,744 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:55:39,744 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:55:39,745 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:55:39,745 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:39,745 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:55:39,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:55:39,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2022-11-02 20:55:39,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:55:39,745 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:55:39,747 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:39,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:39,755 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:39,846 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:55:39,846 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:55:39,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:39,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:39,848 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:39,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:39,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:39,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:55:39,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:55:39,874 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: [] [2022-11-02 20:55:39,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:39,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:39,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:39,909 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:39,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:55:39,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:39,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:39,950 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:55:39,950 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:55:39,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:39,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:39,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:39,978 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:39,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 20:55:39,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:39,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:40,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:40,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:40,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:40,031 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:40,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 20:55:40,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:55:40,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:40,343 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:55:40,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:40,349 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:55:40,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:55:40,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:55:40,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:55:40,350 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:55:40,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:40,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:55:40,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:55:40,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2022-11-02 20:55:40,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:55:40,350 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:55:40,352 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:40,362 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:40,374 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:40,483 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:55:40,483 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:55:40,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:40,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:40,486 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:40,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 20:55:40,498 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 [2022-11-02 20:55:40,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:40,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:40,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:55:40,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:40,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:55:40,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:55:40,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:55:40,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:40,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:40,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:40,582 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:40,590 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 [2022-11-02 20:55:40,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 20:55:40,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:40,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:55:40,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:40,605 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:55:40,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:40,608 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:55:40,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:55:40,619 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:55:40,623 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:55:40,624 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:55:40,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:40,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:40,626 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:40,661 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:55:40,661 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:55:40,661 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:55:40,662 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-02 20:55:40,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 20:55:40,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:40,706 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:55:40,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:55:40,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,760 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:55:40,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:40,830 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:55:40,830 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) 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) [2022-11-02 20:55:40,866 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) 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) Result 22 states and 33 transitions. Complement of second has 7 states. [2022-11-02 20:55:40,867 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 [2022-11-02 20:55:40,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) 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) [2022-11-02 20:55:40,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-02 20:55:40,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-02 20:55:40,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:40,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-02 20:55:40,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:40,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-02 20:55:40,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:40,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 33 transitions. [2022-11-02 20:55:40,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:55:40,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 28 transitions. [2022-11-02 20:55:40,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-02 20:55:40,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-02 20:55:40,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2022-11-02 20:55:40,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:55:40,877 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-11-02 20:55:40,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2022-11-02 20:55:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-02 20:55:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2022-11-02 20:55:40,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-02 20:55:40,881 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-02 20:55:40,882 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:55:40,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2022-11-02 20:55:40,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:55:40,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:55:40,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:55:40,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2022-11-02 20:55:40,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:55:40,884 INFO L748 eck$LassoCheckResult]: Stem: 162#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 163#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 167#L13-1 assume !!(main_~i~0#1 > 10); 168#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 155#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 156#L13-1 assume !!(main_~i~0#1 > 10); 161#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 165#L10-2 [2022-11-02 20:55:40,884 INFO L750 eck$LassoCheckResult]: Loop: 165#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 159#L13-1 assume !!(main_~i~0#1 > 10); 160#L10 assume !(25 == main_~i~0#1); 165#L10-2 [2022-11-02 20:55:40,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:40,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664017, now seen corresponding path program 1 times [2022-11-02 20:55:40,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:40,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314197755] [2022-11-02 20:55:40,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:40,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:40,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:40,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314197755] [2022-11-02 20:55:40,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314197755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:40,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:40,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:55:40,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186374031] [2022-11-02 20:55:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:40,968 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:55:40,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:40,969 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 3 times [2022-11-02 20:55:40,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:40,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493270374] [2022-11-02 20:55:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:40,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:40,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:41,010 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:55:41,010 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:55:41,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:55:41,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:55:41,011 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:55:41,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:55:41,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:55:41,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2022-11-02 20:55:41,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:55:41,012 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:55:41,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:41,019 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:41,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:41,135 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:55:41,135 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:55:41,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:41,138 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:41,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:41,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:41,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 20:55:41,174 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:55:41,175 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: [] [2022-11-02 20:55:41,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:41,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:41,220 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:41,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 20:55:41,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:41,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:41,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:55:41,249 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:55:41,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:41,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:41,296 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:41,305 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:41,305 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:41,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 20:55:41,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:41,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:41,376 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:41,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:55:41,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:41,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-02 20:55:41,647 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:55:41,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:41,652 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:55:41,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:55:41,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:55:41,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:55:41,652 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:55:41,652 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,652 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:55:41,652 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:55:41,652 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2022-11-02 20:55:41,652 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:55:41,652 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:55:41,654 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:41,665 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:41,669 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:41,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:41,822 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:55:41,823 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:55:41,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:41,828 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:41,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-02 20:55:41,839 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 [2022-11-02 20:55:41,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:41,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:41,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:55:41,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:41,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:55:41,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:55:41,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:55:41,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:41,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:41,907 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:41,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-02 20:55:41,916 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 [2022-11-02 20:55:41,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:41,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:41,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:55:41,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:41,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:55:41,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:55:41,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:55:41,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:41,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:41,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:42,000 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:42,005 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 [2022-11-02 20:55:42,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-02 20:55:42,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:42,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:55:42,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:42,022 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:55:42,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:42,025 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:55:42,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:55:42,041 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:55:42,059 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:55:42,059 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:55:42,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:42,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:42,061 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:42,063 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:55:42,064 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:55:42,064 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:55:42,064 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-02 20:55:42,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-02 20:55:42,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:42,105 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:55:42,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:55:42,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,152 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:55:42,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:42,194 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:55:42,194 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-02 20:55:42,234 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) Result 24 states and 35 transitions. Complement of second has 7 states. [2022-11-02 20:55:42,235 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 [2022-11-02 20:55:42,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-02 20:55:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-02 20:55:42,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-02 20:55:42,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:42,239 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:55:42,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:55:42,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,277 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:55:42,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:42,322 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:55:42,323 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-02 20:55:42,369 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) Result 22 states and 33 transitions. Complement of second has 7 states. [2022-11-02 20:55:42,369 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 [2022-11-02 20:55:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-02 20:55:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-11-02 20:55:42,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-02 20:55:42,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:42,372 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:55:42,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:55:42,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,434 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:55:42,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:42,477 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:55:42,477 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-02 20:55:42,523 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) Result 34 states and 50 transitions. Complement of second has 7 states. [2022-11-02 20:55:42,524 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 [2022-11-02 20:55:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-02 20:55:42,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-02 20:55:42,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-02 20:55:42,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:42,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-02 20:55:42,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:42,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-02 20:55:42,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:42,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2022-11-02 20:55:42,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-02 20:55:42,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 37 transitions. [2022-11-02 20:55:42,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-02 20:55:42,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-02 20:55:42,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 37 transitions. [2022-11-02 20:55:42,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:55:42,539 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 37 transitions. [2022-11-02 20:55:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 37 transitions. [2022-11-02 20:55:42,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2022-11-02 20:55:42,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2022-11-02 20:55:42,541 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 25 transitions. [2022-11-02 20:55:42,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:42,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:55:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:55:42,546 INFO L87 Difference]: Start difference. First operand 16 states and 25 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) [2022-11-02 20:55:42,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:42,579 INFO L93 Difference]: Finished difference Result 19 states and 29 transitions. [2022-11-02 20:55:42,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 29 transitions. [2022-11-02 20:55:42,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-02 20:55:42,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 29 transitions. [2022-11-02 20:55:42,581 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-02 20:55:42,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-02 20:55:42,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 29 transitions. [2022-11-02 20:55:42,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:55:42,582 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 29 transitions. [2022-11-02 20:55:42,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 29 transitions. [2022-11-02 20:55:42,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-11-02 20:55:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2022-11-02 20:55:42,585 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-02 20:55:42,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:55:42,587 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-02 20:55:42,587 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:55:42,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2022-11-02 20:55:42,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-11-02 20:55:42,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:55:42,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:55:42,590 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:55:42,590 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:55:42,590 INFO L748 eck$LassoCheckResult]: Stem: 426#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 427#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 430#L13-1 assume !!(main_~i~0#1 > 10); 428#L10 [2022-11-02 20:55:42,590 INFO L750 eck$LassoCheckResult]: Loop: 428#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 419#L10-2 assume !(main_~i~0#1 <= 30);main_~i~0#1 := 20; 421#L13-1 assume !!(main_~i~0#1 > 10); 428#L10 [2022-11-02 20:55:42,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,591 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-02 20:55:42,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:42,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208219861] [2022-11-02 20:55:42,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:42,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:42,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:42,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:42,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,612 INFO L85 PathProgramCache]: Analyzing trace with hash 43938, now seen corresponding path program 1 times [2022-11-02 20:55:42,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:42,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343545613] [2022-11-02 20:55:42,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:42,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:42,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:42,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343545613] [2022-11-02 20:55:42,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343545613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:42,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:42,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:42,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171604182] [2022-11-02 20:55:42,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:42,650 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:55:42,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:42,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:42,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:42,651 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:42,664 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2022-11-02 20:55:42,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2022-11-02 20:55:42,665 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:55:42,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2022-11-02 20:55:42,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-02 20:55:42,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-02 20:55:42,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2022-11-02 20:55:42,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:55:42,666 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-11-02 20:55:42,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2022-11-02 20:55:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-02 20:55:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-02 20:55:42,668 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-02 20:55:42,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:42,669 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-02 20:55:42,669 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 20:55:42,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2022-11-02 20:55:42,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:55:42,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:55:42,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:55:42,671 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1] [2022-11-02 20:55:42,671 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2022-11-02 20:55:42,671 INFO L748 eck$LassoCheckResult]: Stem: 468#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 469#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 464#L13-1 assume !!(main_~i~0#1 > 10); 465#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 460#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 461#L13-1 assume !!(main_~i~0#1 > 10); 474#L10 assume !(25 == main_~i~0#1); 471#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 473#L13-1 assume !!(main_~i~0#1 > 10); 470#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 472#L10-2 [2022-11-02 20:55:42,671 INFO L750 eck$LassoCheckResult]: Loop: 472#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 475#L13-1 assume !!(main_~i~0#1 > 10); 474#L10 assume !(25 == main_~i~0#1); 471#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 473#L13-1 assume !!(main_~i~0#1 > 10); 470#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 472#L10-2 [2022-11-02 20:55:42,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash 997539140, now seen corresponding path program 2 times [2022-11-02 20:55:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:42,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390247819] [2022-11-02 20:55:42,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:42,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:42,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:42,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390247819] [2022-11-02 20:55:42,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390247819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:55:42,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802981029] [2022-11-02 20:55:42,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:55:42,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:42,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:42,731 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:42,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-02 20:55:42,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:55:42,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:55:42,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:55:42,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:42,794 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:42,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:55:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:42,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802981029] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:55:42,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:55:42,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-02 20:55:42,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432216749] [2022-11-02 20:55:42,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:55:42,857 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:55:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1470741663, now seen corresponding path program 1 times [2022-11-02 20:55:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:42,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677291373] [2022-11-02 20:55:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:42,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:42,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:42,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:42,927 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:55:42,927 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:55:42,927 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:55:42,927 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:55:42,928 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:55:42,928 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:42,928 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:55:42,928 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:55:42,928 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2022-11-02 20:55:42,928 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:55:42,928 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:55:42,929 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:42,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:42,943 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:42,982 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:55:42,982 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:55:42,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:42,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:42,984 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:42,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:42,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:42,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-02 20:55:43,013 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:55:43,014 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: [] [2022-11-02 20:55:43,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:43,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:43,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:43,056 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:43,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:55:43,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:43,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-02 20:55:43,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:43,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:43,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:43,106 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:43,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:55:43,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:55:43,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-02 20:55:43,153 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:55:43,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:43,187 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:55:43,187 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:55:43,187 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:55:43,187 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:55:43,187 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:55:43,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:43,187 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:55:43,187 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:55:43,187 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2022-11-02 20:55:43,187 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:55:43,187 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:55:43,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:43,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:43,200 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:55:43,236 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:55:43,236 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:55:43,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:43,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:43,238 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:43,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-02 20:55:43,246 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 [2022-11-02 20:55:43,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:55:43,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:55:43,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:55:43,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:55:43,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:55:43,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:55:43,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:55:43,277 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:55:43,290 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:55:43,290 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:55:43,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:55:43,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:43,297 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:43,301 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:55:43,301 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:55:43,301 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:55:43,302 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 57 Supporting invariants [] [2022-11-02 20:55:43,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-02 20:55:43,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:43,329 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:55:43,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:55:43,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:55:43,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:43,429 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:55:43,429 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,471 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 31 states and 37 transitions. Complement of second has 7 states. [2022-11-02 20:55:43,472 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 [2022-11-02 20:55:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-02 20:55:43,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-02 20:55:43,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:43,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-02 20:55:43,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:43,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2022-11-02 20:55:43,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:55:43,475 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2022-11-02 20:55:43,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:55:43,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 36 transitions. [2022-11-02 20:55:43,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-02 20:55:43,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-02 20:55:43,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2022-11-02 20:55:43,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:55:43,477 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-11-02 20:55:43,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2022-11-02 20:55:43,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-11-02 20:55:43,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-02 20:55:43,481 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-02 20:55:43,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:43,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:55:43,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:55:43,482 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 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) [2022-11-02 20:55:43,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:43,516 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-11-02 20:55:43,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2022-11-02 20:55:43,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-02 20:55:43,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 31 states and 35 transitions. [2022-11-02 20:55:43,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-02 20:55:43,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-02 20:55:43,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 35 transitions. [2022-11-02 20:55:43,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:55:43,519 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-02 20:55:43,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 35 transitions. [2022-11-02 20:55:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2022-11-02 20:55:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-02 20:55:43,540 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-02 20:55:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:55:43,542 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-02 20:55:43,542 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-02 20:55:43,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 30 transitions. [2022-11-02 20:55:43,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-11-02 20:55:43,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:55:43,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:55:43,546 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 2, 1, 1] [2022-11-02 20:55:43,546 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 4, 1] [2022-11-02 20:55:43,546 INFO L748 eck$LassoCheckResult]: Stem: 705#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 706#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 708#L13-1 assume !!(main_~i~0#1 > 10); 707#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 702#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 701#L13-1 assume !!(main_~i~0#1 > 10); 700#L10 assume !(25 == main_~i~0#1); 703#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 704#L13-1 assume !!(main_~i~0#1 > 10); 724#L10 assume !(25 == main_~i~0#1); 723#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 722#L13-1 assume !!(main_~i~0#1 > 10); 721#L10 assume !(25 == main_~i~0#1); 720#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 719#L13-1 assume !!(main_~i~0#1 > 10); 718#L10 assume !(25 == main_~i~0#1); 714#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 715#L13-1 assume !!(main_~i~0#1 > 10); 713#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 712#L10-2 [2022-11-02 20:55:43,547 INFO L750 eck$LassoCheckResult]: Loop: 712#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 699#L13-1 assume !!(main_~i~0#1 > 10); 700#L10 assume !(25 == main_~i~0#1); 703#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 704#L13-1 assume !!(main_~i~0#1 > 10); 724#L10 assume !(25 == main_~i~0#1); 723#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 722#L13-1 assume !!(main_~i~0#1 > 10); 721#L10 assume !(25 == main_~i~0#1); 720#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 719#L13-1 assume !!(main_~i~0#1 > 10); 718#L10 assume !(25 == main_~i~0#1); 714#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 715#L13-1 assume !!(main_~i~0#1 > 10); 713#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 712#L10-2 [2022-11-02 20:55:43,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:43,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1587470191, now seen corresponding path program 3 times [2022-11-02 20:55:43,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:43,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100554095] [2022-11-02 20:55:43,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:43,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:43,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:43,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:43,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:43,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1155970966, now seen corresponding path program 2 times [2022-11-02 20:55:43,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:43,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294108490] [2022-11-02 20:55:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:43,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:43,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:43,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:43,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:43,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:43,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1288805114, now seen corresponding path program 4 times [2022-11-02 20:55:43,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:43,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153485162] [2022-11-02 20:55:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:43,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:43,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:43,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:43,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:55:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:43,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:55:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:55:43,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:55:43 BoogieIcfgContainer [2022-11-02 20:55:43,925 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:55:43,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:55:43,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:55:43,926 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:55:43,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:38" (3/4) ... [2022-11-02 20:55:43,930 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-02 20:55:43,976 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:55:43,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:55:43,978 INFO L158 Benchmark]: Toolchain (without parser) took 6546.43ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 86.4MB in the beginning and 103.8MB in the end (delta: -17.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-02 20:55:43,978 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory was 103.5MB in the beginning and 103.4MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:55:43,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.26ms. Allocated memory is still 125.8MB. Free memory was 86.2MB in the beginning and 101.8MB in the end (delta: -15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:55:43,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.98ms. Allocated memory is still 125.8MB. Free memory was 101.8MB in the beginning and 100.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:55:43,980 INFO L158 Benchmark]: Boogie Preprocessor took 23.65ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 99.7MB in the end (delta: 878.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:55:43,981 INFO L158 Benchmark]: RCFGBuilder took 290.43ms. Allocated memory is still 125.8MB. Free memory was 99.3MB in the beginning and 91.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:55:43,981 INFO L158 Benchmark]: BuchiAutomizer took 5887.65ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.0MB in the beginning and 105.9MB in the end (delta: -14.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-02 20:55:43,981 INFO L158 Benchmark]: Witness Printer took 50.93ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:55:43,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory was 103.5MB in the beginning and 103.4MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.26ms. Allocated memory is still 125.8MB. Free memory was 86.2MB in the beginning and 101.8MB in the end (delta: -15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.98ms. Allocated memory is still 125.8MB. Free memory was 101.8MB in the beginning and 100.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.65ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 99.7MB in the end (delta: 878.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.43ms. Allocated memory is still 125.8MB. Free memory was 99.3MB in the beginning and 91.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5887.65ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.0MB in the beginning and 105.9MB in the end (delta: -14.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 50.93ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 57 and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 6 iterations. TraceHistogramMax:6. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 21 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 57 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax190 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf151 smp89 tf107 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=29] [L9] COND TRUE i > 10 VAL [i=29] [L10] COND FALSE !(i == 25) VAL [i=29] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=28] [L9] COND TRUE i > 10 VAL [i=28] [L10] COND FALSE !(i == 25) VAL [i=28] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=27] [L9] COND TRUE i > 10 VAL [i=27] [L10] COND FALSE !(i == 25) VAL [i=27] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=26] [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] Loop: [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=29] [L9] COND TRUE i > 10 VAL [i=29] [L10] COND FALSE !(i == 25) VAL [i=29] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=28] [L9] COND TRUE i > 10 VAL [i=28] [L10] COND FALSE !(i == 25) VAL [i=28] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=27] [L9] COND TRUE i > 10 VAL [i=27] [L10] COND FALSE !(i == 25) VAL [i=27] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=26] [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] Loop: [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-02 20:55:44,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:44,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e5cffd-cb1b-483e-9a2d-8bc8d536309b/bin/uautomizer-Dbtcem3rbc/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)