./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8 --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 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 --- 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-e04fb08 [2022-11-16 11:19:11,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:19:11,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:19:11,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:19:11,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:19:11,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:19:11,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:19:11,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:19:11,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:19:11,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:19:11,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:19:11,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:19:11,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:19:11,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:19:11,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:19:11,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:19:11,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:19:11,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:19:11,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:19:11,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:19:11,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:19:11,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:19:11,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:19:11,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:19:11,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:19:11,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:19:11,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:19:11,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:19:11,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:19:11,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:19:11,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:19:11,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:19:11,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:19:11,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:19:11,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:19:11,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:19:11,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:19:11,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:19:11,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:19:11,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:19:11,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:19:11,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:19:11,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:19:11,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:19:11,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:19:11,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:19:11,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:19:11,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:19:11,802 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:19:11,802 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:19:11,802 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:19:11,802 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:19:11,803 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:19:11,804 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:19:11,804 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:19:11,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:19:11,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:19:11,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:19:11,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:19:11,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:19:11,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:19:11,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:19:11,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:19:11,806 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:19:11,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:19:11,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:19:11,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:19:11,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:19:11,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:19:11,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:19:11,808 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:19:11,808 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_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 [2022-11-16 11:19:12,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:19:12,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:19:12,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:19:12,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:19:12,124 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:19:12,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-11-16 11:19:12,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/data/1708c85fc/88fc100b01c34990bbc9af940e5e8ce9/FLAGc3fc17e90 [2022-11-16 11:19:12,664 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:19:12,665 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-11-16 11:19:12,671 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/data/1708c85fc/88fc100b01c34990bbc9af940e5e8ce9/FLAGc3fc17e90 [2022-11-16 11:19:13,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/data/1708c85fc/88fc100b01c34990bbc9af940e5e8ce9 [2022-11-16 11:19:13,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:19:13,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:19:13,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:19:13,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:19:13,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:19:13,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3153bb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13, skipping insertion in model container [2022-11-16 11:19:13,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:19:13,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:19:13,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:19:13,261 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:19:13,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:19:13,295 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:19:13,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13 WrapperNode [2022-11-16 11:19:13,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:19:13,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:19:13,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:19:13,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:19:13,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,332 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2022-11-16 11:19:13,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:19:13,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:19:13,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:19:13,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:19:13,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:19:13,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:19:13,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:19:13,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:19:13,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (1/1) ... [2022-11-16 11:19:13,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:13,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:13,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:19:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure p [2022-11-16 11:19:13,453 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2022-11-16 11:19:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:19:13,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:19:13,519 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:19:13,521 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:19:13,661 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:19:13,679 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:19:13,680 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:19:13,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:19:13 BoogieIcfgContainer [2022-11-16 11:19:13,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:19:13,684 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:19:13,684 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:19:13,689 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:19:13,694 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:19:13,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:19:13" (1/3) ... [2022-11-16 11:19:13,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e74fe85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:19:13, skipping insertion in model container [2022-11-16 11:19:13,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:19:13,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:13" (2/3) ... [2022-11-16 11:19:13,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e74fe85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:19:13, skipping insertion in model container [2022-11-16 11:19:13,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:19:13,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:19:13" (3/3) ... [2022-11-16 11:19:13,698 INFO L332 chiAutomizerObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex4.c [2022-11-16 11:19:13,751 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:19:13,751 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:19:13,752 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:19:13,752 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:19:13,752 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:19:13,752 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:19:13,752 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:19:13,752 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:19:13,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 11:19:13,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:19:13,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:13,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:13,785 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:19:13,785 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:19:13,785 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:19:13,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 11:19:13,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:19:13,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:13,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:13,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:19:13,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:19:13,796 INFO L748 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 14#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 16#L28true assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 9#L29true call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 17#pENTRYtrue [2022-11-16 11:19:13,796 INFO L750 eck$LassoCheckResult]: Loop: 17#pENTRYtrue ~m := #in~m;~n := #in~n;~r := #in~r; 2#L13true assume ~r > 0; 18#L14true call #t~ret0 := p(~m, ~r - 1, ~n);< 17#pENTRYtrue [2022-11-16 11:19:13,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:13,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1356593, now seen corresponding path program 1 times [2022-11-16 11:19:13,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:13,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769267303] [2022-11-16 11:19:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:13,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:13,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:13,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:13,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash 29913, now seen corresponding path program 1 times [2022-11-16 11:19:13,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:13,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87671958] [2022-11-16 11:19:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:13,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:13,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:13,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:13,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:13,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1759556521, now seen corresponding path program 1 times [2022-11-16 11:19:13,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:13,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792545806] [2022-11-16 11:19:13,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:13,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:13,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:13,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:14,182 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:14,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:14,182 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:14,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:14,183 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:19:14,183 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:14,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:14,183 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration1_Loop [2022-11-16 11:19:14,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:14,184 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:14,208 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,238 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,263 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,271 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,287 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,372 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:14,372 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:19:14,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:14,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:14,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:19:14,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:14,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:14,422 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:14,423 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:14,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:14,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:14,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:14,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:14,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:14,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:19:14,471 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:14,471 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:14,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:14,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:14,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:14,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:14,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:14,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:19:14,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:14,523 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~m=0} Honda state: {p_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:14,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:14,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:14,535 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:14,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:19:14,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:14,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:14,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:14,623 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:14,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:14,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:14,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:14,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:19:14,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:14,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:14,666 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:14,666 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:14,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-16 11:19:14,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:14,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:14,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:19:14,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:14,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:14,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:14,722 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=0} Honda state: {p_#in~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:14,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:14,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:14,733 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:14,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:14,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:14,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:19:14,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:14,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:14,789 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:14,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:19:14,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:14,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:19:14,899 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:19:14,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:14,903 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:14,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:14,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:14,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:14,904 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:19:14,904 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:14,904 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:14,904 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:14,904 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration1_Loop [2022-11-16 11:19:14,904 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:14,905 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:14,907 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,915 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,918 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,920 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,926 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,930 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:14,995 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:15,000 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:19:15,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,003 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:19:15,040 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 [2022-11-16 11:19:15,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:15,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:15,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,069 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:19:15,080 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 [2022-11-16 11:19:15,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:15,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:15,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,105 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:19:15,112 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 [2022-11-16 11:19:15,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:15,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:15,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 11:19:15,140 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 [2022-11-16 11:19:15,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:15,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:15,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,161 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 11:19:15,163 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 [2022-11-16 11:19:15,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:15,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:15,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,223 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 11:19:15,229 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 [2022-11-16 11:19:15,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:15,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:15,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,264 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 11:19:15,267 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 [2022-11-16 11:19:15,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:15,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:15,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,301 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,316 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 [2022-11-16 11:19:15,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 11:19:15,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:15,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:15,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,351 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-16 11:19:15,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,353 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 11:19:15,357 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 [2022-11-16 11:19:15,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,371 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:15,372 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:15,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,396 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,407 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 [2022-11-16 11:19:15,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,421 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:15,423 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:15,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 11:19:15,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,444 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 11:19:15,457 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 [2022-11-16 11:19:15,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,469 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:15,470 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:15,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,489 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 11:19:15,497 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 [2022-11-16 11:19:15,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,508 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:15,510 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:15,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,527 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-16 11:19:15,531 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 [2022-11-16 11:19:15,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,541 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:15,542 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:15,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-11-16 11:19:15,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,564 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-16 11:19:15,568 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 [2022-11-16 11:19:15,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,580 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:15,584 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:15,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:15,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,597 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 11:19:15,601 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 [2022-11-16 11:19:15,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:15,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:15,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:15,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:15,613 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:15,617 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:15,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:15,647 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:19:15,659 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:19:15,660 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:19:15,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:15,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:15,667 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:15,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:19:15,672 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:19:15,672 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:19:15,673 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_#in~n + 1*p_#in~r f1 = 1*p_#in~r Supporting invariants [] [2022-11-16 11:19:15,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 11:19:15,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:15,681 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:19:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:15,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:19:15,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:15,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:19:15,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:16,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-16 11:19:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:16,112 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 [2022-11-16 11:19:16,114 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:16,328 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 60 transitions. Complement of second has 12 states. [2022-11-16 11:19:16,330 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 [2022-11-16 11:19:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-16 11:19:16,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-16 11:19:16,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:16,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:19:16,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:16,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-16 11:19:16,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:16,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2022-11-16 11:19:16,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:19:16,348 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 21 states and 24 transitions. [2022-11-16 11:19:16,349 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-16 11:19:16,349 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-16 11:19:16,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2022-11-16 11:19:16,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:19:16,350 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-16 11:19:16,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2022-11-16 11:19:16,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2022-11-16 11:19:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-16 11:19:16,378 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-16 11:19:16,378 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-16 11:19:16,378 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:19:16,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2022-11-16 11:19:16,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:19:16,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:16,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:16,379 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:19:16,380 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:19:16,380 INFO L748 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 133#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 134#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 125#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 135#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 124#L13 assume !(~r > 0); 126#L16 [2022-11-16 11:19:16,380 INFO L750 eck$LassoCheckResult]: Loop: 126#L16 assume ~n > 0; 129#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 131#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 137#L13 assume !(~r > 0); 126#L16 [2022-11-16 11:19:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1303685879, now seen corresponding path program 1 times [2022-11-16 11:19:16,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:16,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24916639] [2022-11-16 11:19:16,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:16,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:16,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:16,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:16,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:16,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1221437, now seen corresponding path program 1 times [2022-11-16 11:19:16,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:16,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381206240] [2022-11-16 11:19:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:16,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:16,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:16,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:16,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:16,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1125326029, now seen corresponding path program 1 times [2022-11-16 11:19:16,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:16,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788911958] [2022-11-16 11:19:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:16,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:16,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:16,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:16,545 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:16,545 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:16,545 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:16,545 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:16,545 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:19:16,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:16,546 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:16,546 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:16,546 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration2_Loop [2022-11-16 11:19:16,546 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:16,546 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:16,547 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:16,550 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:16,552 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:16,555 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:16,565 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:16,640 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:16,640 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:19:16,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:16,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:16,642 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:16,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:16,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:16,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 11:19:16,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:16,675 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:16,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:16,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:16,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:16,680 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:16,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:16,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:16,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 11:19:16,715 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:16,715 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:16,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:16,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:16,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:16,725 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:16,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:16,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:16,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-16 11:19:16,763 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:16,763 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:16,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:16,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:16,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:16,768 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:16,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:16,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:16,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-16 11:19:16,803 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:16,803 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=0, p_~m=0, p_~r=0, p_#in~r=0} Honda state: {p_#in~m=0, p_~m=0, p_~r=0, p_#in~r=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:16,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:16,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:16,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:16,811 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:16,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:16,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:16,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-16 11:19:16,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:16,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:16,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:16,860 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:16,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:19:16,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:16,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-16 11:19:17,172 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:19:17,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:17,177 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:17,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:17,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:17,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:17,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:19:17,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:17,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:17,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:17,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration2_Loop [2022-11-16 11:19:17,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:17,178 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:17,180 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,185 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,204 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,300 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:17,301 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:19:17,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:17,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:17,302 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:17,307 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 [2022-11-16 11:19:17,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:17,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:17,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-16 11:19:17,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:17,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:17,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:17,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:17,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:17,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:17,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:17,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:17,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:17,349 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:17,353 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 [2022-11-16 11:19:17,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:17,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:17,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:17,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:17,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:17,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-16 11:19:17,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:17,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:17,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:17,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:17,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:17,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:17,386 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:17,390 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 [2022-11-16 11:19:17,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:17,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:17,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:17,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:17,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:17,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:17,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:17,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-16 11:19:17,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:17,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:17,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:17,435 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:17,439 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 [2022-11-16 11:19:17,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:17,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:17,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:17,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:17,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:17,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:17,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:17,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-16 11:19:17,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:17,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:17,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:17,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:17,472 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:17,476 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 [2022-11-16 11:19:17,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:17,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:17,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:17,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:17,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:17,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:17,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:17,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-16 11:19:17,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:19:17,523 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:19:17,523 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 11:19:17,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:17,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:17,525 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:17,528 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:19:17,529 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:19:17,529 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:19:17,529 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2022-11-16 11:19:17,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-16 11:19:17,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:17,538 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:19:17,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:17,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:19:17,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:17,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:17,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:19:17,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:17,722 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-16 11:19:17,723 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:17,759 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 31 transitions. Complement of second has 13 states. [2022-11-16 11:19:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 11:19:17,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:17,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-16 11:19:17,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-16 11:19:17,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:17,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2022-11-16 11:19:17,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:17,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 8 letters. [2022-11-16 11:19:17,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:17,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2022-11-16 11:19:17,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:19:17,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 25 transitions. [2022-11-16 11:19:17,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-16 11:19:17,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-16 11:19:17,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2022-11-16 11:19:17,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:19:17,771 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-16 11:19:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2022-11-16 11:19:17,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-11-16 11:19:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-16 11:19:17,775 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-16 11:19:17,775 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-16 11:19:17,775 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:19:17,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2022-11-16 11:19:17,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:19:17,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:17,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:17,777 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:19:17,777 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:19:17,777 INFO L748 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 238#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 239#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 227#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 240#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 226#L13 assume !(~r > 0); 229#L16 assume ~n > 0; 231#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 236#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 242#L13 assume ~r > 0; 234#L14 [2022-11-16 11:19:17,778 INFO L750 eck$LassoCheckResult]: Loop: 234#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 235#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 244#L13 assume ~r > 0; 234#L14 [2022-11-16 11:19:17,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:17,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1125326032, now seen corresponding path program 1 times [2022-11-16 11:19:17,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:17,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693919497] [2022-11-16 11:19:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:17,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:17,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:17,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:17,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:17,800 INFO L85 PathProgramCache]: Analyzing trace with hash 57663, now seen corresponding path program 2 times [2022-11-16 11:19:17,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:17,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416382426] [2022-11-16 11:19:17,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:17,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:17,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:17,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:17,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:17,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1926921136, now seen corresponding path program 1 times [2022-11-16 11:19:17,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:17,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185448479] [2022-11-16 11:19:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:17,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:17,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:17,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:17,937 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:17,938 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:17,938 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:17,938 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:17,938 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:19:17,938 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:17,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:17,939 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:17,939 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration3_Loop [2022-11-16 11:19:17,939 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:17,939 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:17,940 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,953 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:17,963 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:18,022 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:18,022 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:19:18,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:18,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:18,024 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:18,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:18,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:18,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-16 11:19:18,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:18,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:18,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:18,072 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:18,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:19:18,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:18,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-16 11:19:30,218 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-16 11:19:30,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-11-16 11:19:30,226 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:30,226 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:30,226 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:30,226 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:30,226 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:19:30,226 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,227 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:30,227 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:30,227 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration3_Loop [2022-11-16 11:19:30,227 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:30,227 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:30,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:30,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:30,248 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:30,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:30,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:30,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:30,334 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:19:30,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:30,335 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:30,349 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 [2022-11-16 11:19:30,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-16 11:19:30,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:30,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:30,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:30,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:30,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:30,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:30,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:30,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:30,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:30,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:30,384 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:30,388 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 [2022-11-16 11:19:30,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:30,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:30,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:30,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:30,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:30,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-16 11:19:30,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:30,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:30,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:30,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:30,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:30,428 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:30,436 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 [2022-11-16 11:19:30,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:30,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:30,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:30,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:30,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:30,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:30,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:30,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-16 11:19:30,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:30,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:30,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:30,468 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:30,472 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 [2022-11-16 11:19:30,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:30,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:30,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:30,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:30,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:30,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:30,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:30,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-16 11:19:30,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:30,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:30,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:30,502 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:30,506 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 [2022-11-16 11:19:30,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:30,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:30,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:30,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:30,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:30,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:30,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:30,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-16 11:19:30,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:30,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:30,541 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-16 11:19:30,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:30,542 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:30,546 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 [2022-11-16 11:19:30,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-16 11:19:30,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:30,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:30,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:30,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:30,560 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:30,561 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:30,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:30,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:30,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:30,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:30,586 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:30,590 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 [2022-11-16 11:19:30,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:30,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:30,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:30,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:30,604 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:30,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-16 11:19:30,607 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:30,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:30,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:19:30,632 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-16 11:19:30,632 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-16 11:19:30,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:30,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:30,634 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:30,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-16 11:19:30,642 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:19:30,642 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:19:30,642 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:19:30,642 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~n + 1*p_~r f1 = 1*p_~n Supporting invariants [] [2022-11-16 11:19:30,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:30,648 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:19:30,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:30,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:19:30,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:30,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:19:30,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:30,985 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 [2022-11-16 11:19:30,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:31,089 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 51 transitions. Complement of second has 9 states. [2022-11-16 11:19:31,090 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 [2022-11-16 11:19:31,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-16 11:19:31,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:19:31,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:31,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-16 11:19:31,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:31,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-16 11:19:31,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:31,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 51 transitions. [2022-11-16 11:19:31,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:19:31,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 45 transitions. [2022-11-16 11:19:31,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-11-16 11:19:31,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-16 11:19:31,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2022-11-16 11:19:31,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:19:31,096 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-11-16 11:19:31,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2022-11-16 11:19:31,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2022-11-16 11:19:31,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 8 states have call successors, (11), 8 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:31,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-11-16 11:19:31,100 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-16 11:19:31,100 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-16 11:19:31,100 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:19:31,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2022-11-16 11:19:31,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 11:19:31,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:31,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:31,103 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:19:31,103 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:19:31,103 INFO L748 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 371#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 372#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 361#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 375#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 387#L13 assume !(~r > 0); 386#L16 assume ~n > 0; 376#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 384#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 382#L13 assume ~r > 0; 368#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 378#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 385#L13 assume !(~r > 0); 379#L16 [2022-11-16 11:19:31,104 INFO L750 eck$LassoCheckResult]: Loop: 379#L16 assume ~n > 0; 364#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 366#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 380#L13 assume !(~r > 0); 379#L16 [2022-11-16 11:19:31,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1926921139, now seen corresponding path program 2 times [2022-11-16 11:19:31,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:31,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196372533] [2022-11-16 11:19:31,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:31,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:31,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:31,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:31,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:31,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1221437, now seen corresponding path program 2 times [2022-11-16 11:19:31,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:31,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177250054] [2022-11-16 11:19:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:31,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:31,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:31,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:31,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:31,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1157887471, now seen corresponding path program 3 times [2022-11-16 11:19:31,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:31,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180459107] [2022-11-16 11:19:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:31,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:31,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:31,201 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:31,323 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:31,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:31,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:31,324 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:31,324 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:19:31,324 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:31,324 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:31,324 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:31,324 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration4_Loop [2022-11-16 11:19:31,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:31,325 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:31,325 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,334 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,337 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,340 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,353 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,422 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:31,422 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:19:31,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:31,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:31,423 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:31,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:31,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:31,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-16 11:19:31,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:31,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:31,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:31,465 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:31,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:19:31,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:31,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-16 11:19:31,767 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:19:31,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:31,772 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:31,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:31,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:31,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:31,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:19:31,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:31,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:31,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:31,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration4_Loop [2022-11-16 11:19:31,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:31,773 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:31,774 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,781 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,791 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,794 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,796 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:31,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:31,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:31,865 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:19:31,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:31,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:31,866 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:31,876 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 [2022-11-16 11:19:31,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:31,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:31,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:31,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:31,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:31,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:31,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:31,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-16 11:19:31,893 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:19:31,897 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:19:31,897 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 11:19:31,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:31,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:31,898 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:31,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-16 11:19:31,901 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:19:31,901 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:19:31,901 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:19:31,901 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2022-11-16 11:19:31,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2022-11-16 11:19:31,904 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:19:31,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:31,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:19:31,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:19:32,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:32,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:32,062 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-16 11:19:32,063 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:32,090 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2022-11-16 11:19:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 11:19:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-16 11:19:32,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 13 letters. Loop has 4 letters. [2022-11-16 11:19:32,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:32,093 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:19:32,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:19:32,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:19:32,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:32,236 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-16 11:19:32,237 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:32,282 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2022-11-16 11:19:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 11:19:32,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-16 11:19:32,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2022-11-16 11:19:32,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:32,287 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:19:32,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:19:32,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:32,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:19:32,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:32,434 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 4 loop predicates [2022-11-16 11:19:32,434 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:32,455 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 68 transitions. Complement of second has 15 states. [2022-11-16 11:19:32,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 11:19:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:32,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-11-16 11:19:32,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 4 letters. [2022-11-16 11:19:32,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:32,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 4 letters. [2022-11-16 11:19:32,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:32,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2022-11-16 11:19:32,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:32,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 68 transitions. [2022-11-16 11:19:32,463 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-16 11:19:32,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 39 states and 47 transitions. [2022-11-16 11:19:32,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-16 11:19:32,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-16 11:19:32,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2022-11-16 11:19:32,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:19:32,465 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 47 transitions. [2022-11-16 11:19:32,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2022-11-16 11:19:32,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 24. [2022-11-16 11:19:32,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 17 states have internal predecessors, (23), 5 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:32,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-16 11:19:32,467 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-16 11:19:32,468 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-16 11:19:32,468 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 11:19:32,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2022-11-16 11:19:32,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-16 11:19:32,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:32,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:32,469 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:19:32,469 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2022-11-16 11:19:32,469 INFO L748 eck$LassoCheckResult]: Stem: 767#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 768#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 769#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 761#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 772#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 760#L13 assume ~r > 0; 758#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 770#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 757#L13 assume !(~r > 0); 759#L16 [2022-11-16 11:19:32,470 INFO L750 eck$LassoCheckResult]: Loop: 759#L16 assume ~n > 0; 763#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 776#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 775#L13 assume ~r > 0; 762#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 773#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 774#L13 assume !(~r > 0); 759#L16 [2022-11-16 11:19:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:32,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1283297937, now seen corresponding path program 1 times [2022-11-16 11:19:32,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:32,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408563262] [2022-11-16 11:19:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:32,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:32,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:32,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:32,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:32,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2028029801, now seen corresponding path program 1 times [2022-11-16 11:19:32,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:32,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796915780] [2022-11-16 11:19:32,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:32,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:32,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:32,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:32,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:32,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1308917189, now seen corresponding path program 4 times [2022-11-16 11:19:32,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:32,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678695446] [2022-11-16 11:19:32,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:32,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:32,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:32,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:32,755 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:32,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:32,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:32,755 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:32,755 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:19:32,755 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:32,755 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:32,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:32,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration5_Loop [2022-11-16 11:19:32,756 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:32,756 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:32,758 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:32,760 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:32,762 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:32,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:32,868 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:32,868 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:19:32,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:32,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:32,870 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:32,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:32,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:32,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-16 11:19:32,904 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:32,904 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:32,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:32,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:32,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:32,910 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:32,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:32,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:32,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-16 11:19:32,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:32,939 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:32,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:32,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:32,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:32,944 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:32,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-16 11:19:32,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:32,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:32,969 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:32,969 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:32,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2022-11-16 11:19:32,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:32,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:32,973 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:32,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-16 11:19:32,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:32,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:33,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:33,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:33,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:33,014 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:33,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:19:33,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:33,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-16 11:19:36,131 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:19:36,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2022-11-16 11:19:36,135 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:36,135 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:36,135 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:36,135 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:36,135 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:19:36,135 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:36,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:36,135 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration5_Loop [2022-11-16 11:19:36,135 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:36,136 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:36,137 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:36,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:36,145 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:36,149 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:36,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:36,256 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:19:36,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,258 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,267 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 [2022-11-16 11:19:36,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:36,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:36,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:36,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:36,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:36,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:36,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:36,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-16 11:19:36,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:36,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:36,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,296 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,303 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 [2022-11-16 11:19:36,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:36,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:36,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:36,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:36,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:36,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-16 11:19:36,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:36,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:36,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:36,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:36,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,335 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,339 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 [2022-11-16 11:19:36,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:36,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:36,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:36,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:36,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:36,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:36,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:36,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-16 11:19:36,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:36,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:36,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,371 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,375 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 [2022-11-16 11:19:36,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:36,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:36,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:36,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:36,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:36,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-16 11:19:36,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:36,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:36,415 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:36,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:36,418 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-16 11:19:36,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,419 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,423 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 [2022-11-16 11:19:36,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:36,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:36,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:36,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:36,436 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:36,436 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:36,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:36,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-11-16 11:19:36,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:36,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:36,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,456 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,459 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 [2022-11-16 11:19:36,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:36,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:36,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:36,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:36,472 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:36,473 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:36,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:36,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-11-16 11:19:36,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:36,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:36,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,487 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,491 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 [2022-11-16 11:19:36,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:36,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:36,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:36,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:36,504 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:36,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-11-16 11:19:36,506 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:36,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:36,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:36,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2022-11-16 11:19:36,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,533 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,537 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 [2022-11-16 11:19:36,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:36,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:36,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:36,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:36,551 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:36,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-11-16 11:19:36,555 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:36,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:36,579 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:19:36,587 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-16 11:19:36,588 INFO L444 ModelExtractionUtils]: 10 out of 15 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 11:19:36,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:36,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:36,595 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:36,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:19:36,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:19:36,596 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:19:36,596 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~m + 1*p_~r f1 = 1*p_~m Supporting invariants [] [2022-11-16 11:19:36,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-11-16 11:19:36,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:36,600 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:19:36,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:36,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:19:36,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:36,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 11:19:36,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:36,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:36,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:37,074 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2022-11-16 11:19:37,074 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:37,386 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 92 states and 110 transitions. Complement of second has 26 states. [2022-11-16 11:19:37,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-16 11:19:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:37,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2022-11-16 11:19:37,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 7 letters. [2022-11-16 11:19:37,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:37,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 16 letters. Loop has 7 letters. [2022-11-16 11:19:37,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:37,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 14 letters. [2022-11-16 11:19:37,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:37,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 110 transitions. [2022-11-16 11:19:37,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-11-16 11:19:37,393 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 77 states and 93 transitions. [2022-11-16 11:19:37,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-11-16 11:19:37,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-11-16 11:19:37,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 93 transitions. [2022-11-16 11:19:37,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:19:37,394 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 93 transitions. [2022-11-16 11:19:37,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 93 transitions. [2022-11-16 11:19:37,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 52. [2022-11-16 11:19:37,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 36 states have internal predecessors, (48), 13 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:37,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2022-11-16 11:19:37,406 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-11-16 11:19:37,406 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-11-16 11:19:37,407 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-16 11:19:37,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 64 transitions. [2022-11-16 11:19:37,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-11-16 11:19:37,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:37,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:37,408 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:19:37,408 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:19:37,408 INFO L748 eck$LassoCheckResult]: Stem: 989#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 990#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 991#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 982#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 997#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1019#L13 assume ~r > 0; 993#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 992#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 994#L13 assume !(~r > 0); 999#L16 assume ~n > 0; 988#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1008#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1000#L13 assume ~r > 0; 977#L14 [2022-11-16 11:19:37,408 INFO L750 eck$LassoCheckResult]: Loop: 977#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 998#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 976#L13 assume ~r > 0; 977#L14 [2022-11-16 11:19:37,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:37,409 INFO L85 PathProgramCache]: Analyzing trace with hash 681879976, now seen corresponding path program 5 times [2022-11-16 11:19:37,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:37,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380477495] [2022-11-16 11:19:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:37,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:37,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:37,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:37,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash 57663, now seen corresponding path program 3 times [2022-11-16 11:19:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:37,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321023242] [2022-11-16 11:19:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:37,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:37,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:37,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1308917192, now seen corresponding path program 6 times [2022-11-16 11:19:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:37,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551427053] [2022-11-16 11:19:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:37,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:37,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:37,581 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:37,581 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:37,581 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:37,581 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:37,581 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:19:37,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:37,582 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:37,582 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:37,582 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration6_Loop [2022-11-16 11:19:37,582 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:37,582 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:37,583 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:37,585 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:37,587 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:37,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:37,603 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:37,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:37,664 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:19:37,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:37,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:37,667 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:37,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:37,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:37,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-11-16 11:19:37,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:37,695 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:37,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:37,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:37,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:37,700 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:37,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:37,711 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:37,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-11-16 11:19:37,739 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:37,739 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:37,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:37,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:37,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:37,746 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:37,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:37,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:37,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-11-16 11:19:37,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:37,783 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=6, p_~m=6} Honda state: {p_#in~m=6, p_~m=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:37,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:37,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:37,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:37,788 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:37,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-11-16 11:19:37,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:37,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:37,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2022-11-16 11:19:37,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:37,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:37,818 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:37,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-11-16 11:19:37,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:19:37,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:49,845 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-16 11:19:49,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2022-11-16 11:19:49,850 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:49,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:49,851 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:49,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:49,851 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:19:49,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:49,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:49,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:49,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration6_Loop [2022-11-16 11:19:49,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:49,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:49,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:49,856 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:49,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:49,872 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:49,877 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:49,944 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:49,944 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:19:49,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:49,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:49,948 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:49,956 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 [2022-11-16 11:19:49,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-11-16 11:19:49,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:49,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:49,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:49,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:49,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:49,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:49,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:49,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:49,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:49,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:49,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:49,992 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:50,000 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 [2022-11-16 11:19:50,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-11-16 11:19:50,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:50,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:50,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:50,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:50,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:50,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:50,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:50,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:50,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:50,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:50,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:50,031 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:50,036 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 [2022-11-16 11:19:50,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:50,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:50,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:50,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:50,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:50,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-11-16 11:19:50,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:50,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:50,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:50,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:50,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:50,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:50,076 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:50,083 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 [2022-11-16 11:19:50,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2022-11-16 11:19:50,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:50,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:50,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:50,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:50,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:50,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:50,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:50,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:50,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:50,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:50,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:50,111 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:50,115 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 [2022-11-16 11:19:50,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:50,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:50,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:50,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:50,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:50,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:50,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:50,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2022-11-16 11:19:50,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:50,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:50,170 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-16 11:19:50,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:50,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:50,172 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:50,179 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 [2022-11-16 11:19:50,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:50,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:50,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:50,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:50,192 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:50,193 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:50,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:50,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2022-11-16 11:19:50,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:50,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:50,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:50,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:50,216 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:50,220 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 [2022-11-16 11:19:50,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:50,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:50,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:50,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:50,233 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:50,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2022-11-16 11:19:50,234 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:50,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:50,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:50,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:50,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:50,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:50,248 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:50,251 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 [2022-11-16 11:19:50,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2022-11-16 11:19:50,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:50,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:50,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:50,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:50,265 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-16 11:19:50,267 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-16 11:19:50,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:50,281 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:19:50,302 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-16 11:19:50,302 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-16 11:19:50,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:50,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:50,305 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:50,312 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:19:50,312 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:19:50,312 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:19:50,312 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~n + 1*p_~r f1 = 1*p_~n Supporting invariants [] [2022-11-16 11:19:50,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2022-11-16 11:19:50,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:50,317 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:19:50,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:50,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:19:50,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:50,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:19:50,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:50,597 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 [2022-11-16 11:19:50,597 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:50,699 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 83 states and 105 transitions. Complement of second has 9 states. [2022-11-16 11:19:50,703 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 [2022-11-16 11:19:50,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:50,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-16 11:19:50,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-16 11:19:50,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:50,704 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:19:50,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:50,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:19:50,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:50,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:19:50,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:50,942 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 [2022-11-16 11:19:50,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:51,046 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 83 states and 105 transitions. Complement of second has 9 states. [2022-11-16 11:19:51,046 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 [2022-11-16 11:19:51,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:51,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-16 11:19:51,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-16 11:19:51,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:51,048 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:19:51,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:51,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:19:51,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:51,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:19:51,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:51,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:51,304 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 [2022-11-16 11:19:51,305 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:51,397 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 114 transitions. Complement of second has 8 states. [2022-11-16 11:19:51,398 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 [2022-11-16 11:19:51,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-16 11:19:51,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-16 11:19:51,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:51,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-16 11:19:51,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:51,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-16 11:19:51,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:51,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 114 transitions. [2022-11-16 11:19:51,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-16 11:19:51,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 62 states and 78 transitions. [2022-11-16 11:19:51,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-16 11:19:51,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-16 11:19:51,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 78 transitions. [2022-11-16 11:19:51,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:19:51,403 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-11-16 11:19:51,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 78 transitions. [2022-11-16 11:19:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 41. [2022-11-16 11:19:51,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 10 states have call successors, (14), 11 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2022-11-16 11:19:51,406 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-11-16 11:19:51,407 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-11-16 11:19:51,407 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-16 11:19:51,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2022-11-16 11:19:51,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-11-16 11:19:51,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:51,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:51,408 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-16 11:19:51,408 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2022-11-16 11:19:51,409 INFO L748 eck$LassoCheckResult]: Stem: 1490#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1491#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1492#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 1480#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 1493#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1479#L13 assume !(~r > 0); 1481#L16 assume ~n > 0; 1485#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1519#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1512#L13 assume !(~r > 0); 1486#L16 assume ~n > 0; 1487#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1516#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1517#L13 assume ~r > 0; 1503#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 1498#pENTRY [2022-11-16 11:19:51,409 INFO L750 eck$LassoCheckResult]: Loop: 1498#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1506#L13 assume !(~r > 0); 1505#L16 assume ~n > 0; 1496#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1502#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1500#L13 assume ~r > 0; 1495#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 1498#pENTRY [2022-11-16 11:19:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:51,409 INFO L85 PathProgramCache]: Analyzing trace with hash 708644913, now seen corresponding path program 7 times [2022-11-16 11:19:51,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:51,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596383593] [2022-11-16 11:19:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:51,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:51,486 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:51,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:19:51,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596383593] [2022-11-16 11:19:51,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596383593] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:19:51,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808519875] [2022-11-16 11:19:51,488 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 11:19:51,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:19:51,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:51,489 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:19:51,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2022-11-16 11:19:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:51,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:19:51,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:51,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:19:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:51,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808519875] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:19:51,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:19:51,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2022-11-16 11:19:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182243422] [2022-11-16 11:19:51,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:19:51,596 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:19:51,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1923820573, now seen corresponding path program 2 times [2022-11-16 11:19:51,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:51,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670896692] [2022-11-16 11:19:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:51,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:51,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:51,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:51,758 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:51,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:51,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:51,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:51,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:19:51,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:51,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:51,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:51,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration7_Loop [2022-11-16 11:19:51,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:51,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:51,760 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:51,762 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:51,775 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:51,777 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:51,780 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:51,782 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:51,784 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:51,836 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:51,836 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:19:51,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:51,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:51,839 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:51,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:51,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:51,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2022-11-16 11:19:51,866 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:19:51,866 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:19:51,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:51,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:51,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:51,871 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:51,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:19:51,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:51,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2022-11-16 11:19:51,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:51,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:51,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:51,916 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:51,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:19:51,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:19:51,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2022-11-16 11:19:52,044 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:19:52,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2022-11-16 11:19:52,048 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:19:52,048 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:19:52,048 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:19:52,048 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:19:52,048 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:19:52,048 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:52,048 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:19:52,048 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:19:52,048 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration7_Loop [2022-11-16 11:19:52,048 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:19:52,048 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:19:52,049 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:52,052 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:52,066 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:52,069 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:52,071 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:52,075 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:52,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:19:52,146 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:19:52,146 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:19:52,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:52,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:52,151 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:52,156 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 [2022-11-16 11:19:52,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2022-11-16 11:19:52,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:52,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:52,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:52,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:52,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:52,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:52,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:52,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:19:52,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2022-11-16 11:19:52,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:52,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:52,175 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:52,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2022-11-16 11:19:52,179 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 [2022-11-16 11:19:52,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:19:52,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:19:52,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:19:52,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:19:52,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:19:52,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:19:52,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:19:52,199 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:19:52,204 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-16 11:19:52,204 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-16 11:19:52,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:52,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:52,205 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:52,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2022-11-16 11:19:52,208 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:19:52,208 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:19:52,208 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:19:52,208 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_#in~m) = 1*p_#in~m Supporting invariants [] [2022-11-16 11:19:52,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2022-11-16 11:19:52,211 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:19:52,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:52,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 11:19:52,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:52,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:19:52,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:52,392 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2022-11-16 11:19:52,393 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:52,494 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 175 states and 224 transitions. Complement of second has 25 states. [2022-11-16 11:19:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-16 11:19:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2022-11-16 11:19:52,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 15 letters. Loop has 7 letters. [2022-11-16 11:19:52,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:52,496 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:19:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:52,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 11:19:52,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:52,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:19:52,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:52,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:52,660 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2022-11-16 11:19:52,660 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:52,781 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 194 states and 254 transitions. Complement of second has 30 states. [2022-11-16 11:19:52,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-16 11:19:52,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 23 transitions. [2022-11-16 11:19:52,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 15 letters. Loop has 7 letters. [2022-11-16 11:19:52,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:52,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 22 letters. Loop has 7 letters. [2022-11-16 11:19:52,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:52,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 15 letters. Loop has 14 letters. [2022-11-16 11:19:52,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:19:52,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 254 transitions. [2022-11-16 11:19:52,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-16 11:19:52,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 187 states and 243 transitions. [2022-11-16 11:19:52,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-11-16 11:19:52,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-16 11:19:52,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 243 transitions. [2022-11-16 11:19:52,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:19:52,794 INFO L218 hiAutomatonCegarLoop]: Abstraction has 187 states and 243 transitions. [2022-11-16 11:19:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 243 transitions. [2022-11-16 11:19:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 105. [2022-11-16 11:19:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 67 states have internal predecessors, (97), 28 states have call successors, (43), 37 states have call predecessors, (43), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2022-11-16 11:19:52,802 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 140 transitions. [2022-11-16 11:19:52,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:19:52,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:19:52,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:19:52,806 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:52,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:19:52,872 INFO L93 Difference]: Finished difference Result 109 states and 126 transitions. [2022-11-16 11:19:52,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 126 transitions. [2022-11-16 11:19:52,874 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:19:52,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 0 states and 0 transitions. [2022-11-16 11:19:52,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:19:52,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:19:52,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:19:52,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:19:52,875 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:19:52,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:19:52,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:19:52,876 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:19:52,876 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-16 11:19:52,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:19:52,877 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:19:52,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:19:52,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:19:52 BoogieIcfgContainer [2022-11-16 11:19:52,884 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:19:52,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:19:52,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:19:52,885 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:19:52,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:19:13" (3/4) ... [2022-11-16 11:19:52,888 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:19:52,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:19:52,889 INFO L158 Benchmark]: Toolchain (without parser) took 39844.87ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 105.9MB in the beginning and 64.4MB in the end (delta: 41.5MB). Peak memory consumption was 92.5MB. Max. memory is 16.1GB. [2022-11-16 11:19:52,890 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:19:52,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.88ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 117.4MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:19:52,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.44ms. Allocated memory is still 140.5MB. Free memory was 117.4MB in the beginning and 116.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:19:52,891 INFO L158 Benchmark]: Boogie Preprocessor took 20.41ms. Allocated memory is still 140.5MB. Free memory was 116.3MB in the beginning and 115.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:19:52,891 INFO L158 Benchmark]: RCFGBuilder took 327.00ms. Allocated memory is still 140.5MB. Free memory was 115.3MB in the beginning and 106.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:19:52,892 INFO L158 Benchmark]: BuchiAutomizer took 39200.15ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 105.8MB in the beginning and 64.4MB in the end (delta: 41.4MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. [2022-11-16 11:19:52,892 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 192.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:19:52,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.88ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 117.4MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.44ms. Allocated memory is still 140.5MB. Free memory was 117.4MB in the beginning and 116.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.41ms. Allocated memory is still 140.5MB. Free memory was 116.3MB in the beginning and 115.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 327.00ms. Allocated memory is still 140.5MB. Free memory was 115.3MB in the beginning and 106.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 39200.15ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 105.8MB in the beginning and 64.4MB in the end (delta: 41.4MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 192.9MB. Free memory is still 64.4MB. There was no memory consumed. 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 8 terminating modules (1 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function (if \old(r) + \old(n) > 0 then 1 else 0), (if \old(r) + \old(n) > 0 then \old(r) + \old(n) else \old(r)) and consists of 4 locations. One deterministic module has affine ranking function n and consists of 5 locations. One deterministic module has 2-nested ranking function (if n + r > 0 then 1 else 0), (if n + r > 0 then n + r else n) and consists of 4 locations. One deterministic module has 2-nested ranking function (if m + r > 0 then 1 else 0), (if m + r > 0 then m + r else m) and consists of 8 locations. One deterministic module has affine ranking function \old(m) and consists of 8 locations. One nondeterministic module has affine ranking function n and consists of 5 locations. One nondeterministic module has 2-nested ranking function (if n + r > 0 then 1 else 0), (if n + r > 0 then n + r else n) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.1s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 34.5s. Construction of modules took 0.3s. Büchi inclusion checks took 4.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 157 StatesRemovedByMinimization, 7 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 [4, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/4 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 186 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 174 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf89 smp98 dnf100 smp100 tf106 neg98 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 29.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 11:19:52,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:53,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:53,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd68b6b-eaf0-4b22-8bcf-86db3b690d3a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE