./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg --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 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:03:40,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:03:40,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:03:40,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:03:40,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:03:40,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:03:40,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:03:40,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:03:40,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:03:40,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:03:40,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:03:40,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:03:40,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:03:40,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:03:40,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:03:40,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:03:40,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:03:40,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:03:40,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:03:40,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:03:40,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:03:40,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:03:40,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:03:40,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:03:40,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:03:40,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:03:40,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:03:40,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:03:40,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:03:40,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:03:40,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:03:40,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:03:40,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:03:40,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:03:40,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:03:40,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:03:40,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:03:40,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:03:40,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:03:40,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:03:40,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:03:40,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:03:40,791 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:03:40,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:03:40,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:03:40,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:03:40,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:03:40,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:03:40,795 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:03:40,796 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:03:40,796 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:03:40,796 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:03:40,797 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:03:40,797 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:03:40,797 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:03:40,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:03:40,798 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:03:40,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:03:40,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:03:40,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:03:40,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:03:40,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:03:40,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:03:40,800 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:03:40,801 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:03:40,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:03:40,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:03:40,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:03:40,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:03:40,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:03:40,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:03:40,804 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:03:40,804 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_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 [2021-10-28 09:03:41,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:03:41,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:03:41,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:03:41,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:03:41,159 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:03:41,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-10-28 09:03:41,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/data/b0824c73e/fc6baf9e40c1449b8e341c760fcec660/FLAG5f781af5b [2021-10-28 09:03:41,766 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:03:41,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-10-28 09:03:41,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/data/b0824c73e/fc6baf9e40c1449b8e341c760fcec660/FLAG5f781af5b [2021-10-28 09:03:42,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/data/b0824c73e/fc6baf9e40c1449b8e341c760fcec660 [2021-10-28 09:03:42,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:03:42,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:03:42,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:03:42,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:03:42,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:03:42,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e776519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42, skipping insertion in model container [2021-10-28 09:03:42,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:03:42,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:03:42,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:03:42,386 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:03:42,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:03:42,415 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:03:42,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42 WrapperNode [2021-10-28 09:03:42,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:03:42,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:03:42,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:03:42,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:03:42,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:03:42,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:03:42,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:03:42,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:03:42,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:03:42,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:03:42,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:03:42,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:03:42,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (1/1) ... [2021-10-28 09:03:42,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:42,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:42,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:42,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:03:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:03:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:03:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:03:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:03:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:03:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:03:42,896 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:03:42,907 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:03:42,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:42 BoogieIcfgContainer [2021-10-28 09:03:42,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:03:42,911 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:03:42,912 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:03:42,915 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:03:42,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:42,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:03:42" (1/3) ... [2021-10-28 09:03:42,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61d46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:03:42, skipping insertion in model container [2021-10-28 09:03:42,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:42,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:42" (2/3) ... [2021-10-28 09:03:42,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61d46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:03:42, skipping insertion in model container [2021-10-28 09:03:42,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:42,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:42" (3/3) ... [2021-10-28 09:03:42,935 INFO L389 chiAutomizerObserver]: Analyzing ICFG 4BitCounterPointer.c [2021-10-28 09:03:43,021 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:03:43,022 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:03:43,022 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:03:43,022 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:03:43,023 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:03:43,023 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:03:43,023 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:03:43,023 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:03:43,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:43,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:03:43,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:43,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:43,078 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:03:43,078 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:43,078 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:03:43,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:43,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:03:43,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:43,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:43,081 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:03:43,082 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:43,091 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 6#L24-2true [2021-10-28 09:03:43,091 INFO L793 eck$LassoCheckResult]: Loop: 6#L24-2true call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 9#L15-1true assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 3#L16true assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 6#L24-2true [2021-10-28 09:03:43,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:43,099 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:03:43,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:43,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422963736] [2021-10-28 09:03:43,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:43,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:43,275 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:43,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:43,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:43,387 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-10-28 09:03:43,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:43,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145784749] [2021-10-28 09:03:43,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:43,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:43,405 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:43,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:43,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:43,429 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-10-28 09:03:43,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:43,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804098256] [2021-10-28 09:03:43,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:43,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:43,482 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:43,567 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:45,508 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:03:45,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:03:45,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:03:45,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:03:45,509 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:03:45,509 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:45,509 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:03:45,509 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:03:45,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration1_Lasso [2021-10-28 09:03:45,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:03:45,510 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:03:45,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:45,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:45,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:45,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:45,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:45,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:45,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:45,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:46,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:46,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:03:46,866 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:03:46,871 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:03:46,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:46,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:46,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:46,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:46,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:46,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:46,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:46,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:46,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:46,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:46,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:46,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:03:46,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:46,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:46,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:46,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:46,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:46,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,017 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:03:47,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 09:03:47,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,066 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:03:47,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,146 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:03:47,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:47,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:47,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:47,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:03:47,214 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,224 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:03:47,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,272 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,272 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,334 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:47,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:47,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:47,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:03:47,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,411 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:03:47,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,506 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:03:47,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-28 09:03:47,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,579 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:03:47,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,669 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:03:47,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,748 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:03:47,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,761 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,813 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:03:47,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,871 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:03:47,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-28 09:03:47,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,928 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:03:47,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:47,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:47,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:47,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:47,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:47,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:47,947 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:47,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:47,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:47,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:47,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:47,994 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:47,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:03:47,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:48,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:48,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:48,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:48,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:48,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:48,007 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:48,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:48,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:48,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:48,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:48,051 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:48,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:03:48,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:48,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:48,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:48,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:48,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:48,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:48,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:48,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:48,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:48,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:48,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:48,130 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:48,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:48,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:48,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:48,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:48,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:48,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:48,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:48,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:03:48,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:48,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:48,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:48,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:48,205 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:48,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:48,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:48,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:48,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:48,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:48,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:48,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:48,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:03:48,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:48,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:48,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:48,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:48,294 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:48,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:48,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:48,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:48,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:48,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:48,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:48,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:48,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:03:48,337 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:03:48,355 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:03:48,355 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-28 09:03:48,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:48,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:48,368 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:48,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:03:48,403 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:03:48,431 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:03:48,431 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:03:48,432 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x0~0.base) ULTIMATE.start_main_~x0~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x0~0.base) ULTIMATE.start_main_~x0~0.offset)_1 + 1 Supporting invariants [] [2021-10-28 09:03:48,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:48,697 INFO L297 tatePredicateManager]: 40 out of 40 supporting invariants were superfluous and have been removed [2021-10-28 09:03:48,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:48,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:03:48,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:48,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:03:48,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:48,847 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:03:48,849 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:48,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 8 states. [2021-10-28 09:03:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:03:48,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-10-28 09:03:48,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-28 09:03:48,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:03:48,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 09:03:48,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:03:48,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-28 09:03:48,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:03:48,916 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-28 09:03:48,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:03:48,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 13 states and 18 transitions. [2021-10-28 09:03:48,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 09:03:48,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 09:03:48,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-10-28 09:03:48,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:48,926 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-28 09:03:48,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-10-28 09:03:48,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-28 09:03:48,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-10-28 09:03:48,959 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-28 09:03:48,959 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-28 09:03:48,959 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:03:48,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-10-28 09:03:48,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:03:48,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:48,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:48,960 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:03:48,960 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:03:48,961 INFO L791 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 248#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 253#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 252#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 243#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 244#L20 [2021-10-28 09:03:48,961 INFO L793 eck$LassoCheckResult]: Loop: 244#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 249#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 250#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 255#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 244#L20 [2021-10-28 09:03:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:48,961 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-10-28 09:03:48,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:48,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262268127] [2021-10-28 09:03:48,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:48,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:49,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:49,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:49,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262268127] [2021-10-28 09:03:49,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262268127] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:49,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:03:49,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:03:49,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146698399] [2021-10-28 09:03:49,194 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:03:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:49,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 1 times [2021-10-28 09:03:49,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:49,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397256158] [2021-10-28 09:03:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:49,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:49,220 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:49,247 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:49,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:49,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:03:49,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:03:49,446 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:49,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:49,503 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-10-28 09:03:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:03:49,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-10-28 09:03:49,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:03:49,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 19 transitions. [2021-10-28 09:03:49,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 09:03:49,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 09:03:49,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-10-28 09:03:49,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:49,511 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-28 09:03:49,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-10-28 09:03:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-10-28 09:03:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-10-28 09:03:49,515 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 09:03:49,515 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 09:03:49,515 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:03:49,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-10-28 09:03:49,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:03:49,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:49,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:49,519 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 09:03:49,519 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:03:49,520 INFO L791 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 288#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 289#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 284#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 285#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 290#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 282#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 283#L20 [2021-10-28 09:03:49,520 INFO L793 eck$LassoCheckResult]: Loop: 283#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 291#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 293#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 294#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 283#L20 [2021-10-28 09:03:49,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:49,520 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 1 times [2021-10-28 09:03:49,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:49,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728710503] [2021-10-28 09:03:49,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:49,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:49,585 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:49,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:49,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:49,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 2 times [2021-10-28 09:03:49,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:49,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014301706] [2021-10-28 09:03:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:49,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:49,668 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:49,678 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:49,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:49,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1467212285, now seen corresponding path program 1 times [2021-10-28 09:03:49,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:49,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17988531] [2021-10-28 09:03:49,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:49,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:49,784 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:49,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:49,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17988531] [2021-10-28 09:03:49,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17988531] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:49,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612941662] [2021-10-28 09:03:49,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:49,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:03:49,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:49,788 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:03:49,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 09:03:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:49,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:03:49,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:49,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-28 09:03:49,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 09:03:50,021 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-28 09:03:50,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-10-28 09:03:50,163 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-28 09:03:50,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2021-10-28 09:03:50,171 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:03:50,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612941662] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:50,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:03:50,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2021-10-28 09:03:50,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655784871] [2021-10-28 09:03:50,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:50,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:03:50,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:03:50,337 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:50,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:50,497 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2021-10-28 09:03:50,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:03:50,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-10-28 09:03:50,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:03:50,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2021-10-28 09:03:50,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 09:03:50,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 09:03:50,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2021-10-28 09:03:50,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:50,500 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-10-28 09:03:50,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2021-10-28 09:03:50,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-10-28 09:03:50,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-10-28 09:03:50,503 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-28 09:03:50,503 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-28 09:03:50,503 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:03:50,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-10-28 09:03:50,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:03:50,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:50,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:50,505 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 09:03:50,505 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:03:50,505 INFO L791 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 371#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 376#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 373#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 368#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 369#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 374#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 380#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 377#L20 [2021-10-28 09:03:50,505 INFO L793 eck$LassoCheckResult]: Loop: 377#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 379#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 367#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 372#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 381#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 377#L20 [2021-10-28 09:03:50,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:50,506 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 2 times [2021-10-28 09:03:50,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:50,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530806422] [2021-10-28 09:03:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:50,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:50,529 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:50,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:50,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 49698504, now seen corresponding path program 1 times [2021-10-28 09:03:50,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:50,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400423213] [2021-10-28 09:03:50,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:50,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:50,563 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:50,572 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:50,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1758681084, now seen corresponding path program 1 times [2021-10-28 09:03:50,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:50,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087298840] [2021-10-28 09:03:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:50,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:50,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:50,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087298840] [2021-10-28 09:03:50,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087298840] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:50,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177398136] [2021-10-28 09:03:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:50,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:03:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:50,776 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:03:50,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 09:03:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:50,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 09:03:50,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:50,894 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-28 09:03:50,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-10-28 09:03:51,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 09:03:51,084 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-10-28 09:03:51,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-10-28 09:03:51,181 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-10-28 09:03:51,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 44 [2021-10-28 09:03:51,638 INFO L354 Elim1Store]: treesize reduction 21, result has 36.4 percent of original size [2021-10-28 09:03:51,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 41 [2021-10-28 09:03:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:03:51,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177398136] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:51,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:03:51,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-10-28 09:03:51,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049489608] [2021-10-28 09:03:51,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:51,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:03:51,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:03:51,911 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:58,805 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-10-28 09:03:58,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:03:58,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2021-10-28 09:03:58,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-10-28 09:03:58,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 25 transitions. [2021-10-28 09:03:58,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-28 09:03:58,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-28 09:03:58,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2021-10-28 09:03:58,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:58,808 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-28 09:03:58,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2021-10-28 09:03:58,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2021-10-28 09:03:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-10-28 09:03:58,810 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-28 09:03:58,810 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-28 09:03:58,810 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:03:58,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-10-28 09:03:58,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:03:58,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:58,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:58,811 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 09:03:58,811 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:03:58,811 INFO L791 eck$LassoCheckResult]: Stem: 472#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 473#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 478#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 475#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 470#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 471#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 476#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 482#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 479#L20 [2021-10-28 09:03:58,811 INFO L793 eck$LassoCheckResult]: Loop: 479#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 481#L24 assume !(0 == main_#t~mem7);havoc main_#t~mem7;call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(1, main_~x3~0.base, main_~x3~0.offset, 4); 469#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 474#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 483#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 479#L20 [2021-10-28 09:03:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:58,811 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 3 times [2021-10-28 09:03:58,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:58,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034096430] [2021-10-28 09:03:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:58,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:58,841 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:58,869 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:58,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:58,869 INFO L85 PathProgramCache]: Analyzing trace with hash 49758086, now seen corresponding path program 1 times [2021-10-28 09:03:58,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:58,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085672556] [2021-10-28 09:03:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:58,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:58,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:58,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085672556] [2021-10-28 09:03:58,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085672556] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:58,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:03:58,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:03:58,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040883395] [2021-10-28 09:03:58,902 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:03:58,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:58,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:03:58,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:03:58,903 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:58,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:58,930 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-28 09:03:58,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:03:58,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-10-28 09:03:58,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:03:58,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 19 transitions. [2021-10-28 09:03:58,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 09:03:58,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 09:03:58,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2021-10-28 09:03:58,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:58,935 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-28 09:03:58,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2021-10-28 09:03:58,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 09:03:58,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-28 09:03:58,940 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-28 09:03:58,940 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-28 09:03:58,940 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:03:58,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-10-28 09:03:58,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:03:58,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:58,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:58,943 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 09:03:58,943 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1] [2021-10-28 09:03:58,943 INFO L791 eck$LassoCheckResult]: Stem: 515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 516#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 521#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 518#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 513#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 514#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 519#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 525#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 522#L20 [2021-10-28 09:03:58,943 INFO L793 eck$LassoCheckResult]: Loop: 522#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 523#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 526#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 511#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 512#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 517#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 520#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 522#L20 [2021-10-28 09:03:58,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:58,944 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 4 times [2021-10-28 09:03:58,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:58,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550036204] [2021-10-28 09:03:58,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:58,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:58,973 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:59,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:59,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1770012235, now seen corresponding path program 1 times [2021-10-28 09:03:59,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:59,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034540818] [2021-10-28 09:03:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:59,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:59,025 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:59,036 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:59,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash -161041423, now seen corresponding path program 2 times [2021-10-28 09:03:59,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:59,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880914458] [2021-10-28 09:03:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:59,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:59,078 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:59,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:00,859 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:04:00,859 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:04:00,859 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:04:00,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:04:00,860 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:04:00,860 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:00,860 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:04:00,860 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:04:00,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration6_Lasso [2021-10-28 09:04:00,860 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:04:00,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:04:00,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:00,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:01,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:01,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:01,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:01,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:01,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:01,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:02,071 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:04:02,072 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:04:02,072 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,106 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:04:02,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 09:04:02,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,150 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:04:02,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:02,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,200 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:04:02,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:02,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,257 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:04:02,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,273 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 09:04:02,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,302 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:04:02,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:02,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,386 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,408 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:04:02,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 09:04:02,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,456 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:04:02,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:02,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,501 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:04:02,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:02,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,594 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:04:02,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 09:04:02,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,664 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:04:02,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:02,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,751 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:04:02,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:02,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,846 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:04:02,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:02,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:02,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,891 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:04:02,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:02,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:02,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:02,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:02,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:02,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:02,905 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:02,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:04:02,925 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 09:04:02,925 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 09:04:02,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:02,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:02,929 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:02,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:04:02,930 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:04:02,941 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 09:04:02,941 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:04:02,941 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2 + 1 Supporting invariants [3*ULTIMATE.start_main_#t~mem6 - 2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2 >= 0] [2021-10-28 09:04:02,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:03,128 INFO L297 tatePredicateManager]: 37 out of 38 supporting invariants were superfluous and have been removed [2021-10-28 09:04:03,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:03,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 09:04:03,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:03,270 INFO L354 Elim1Store]: treesize reduction 157, result has 12.3 percent of original size [2021-10-28 09:04:03,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 48 [2021-10-28 09:04:03,284 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-28 09:04:03,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2021-10-28 09:04:03,497 INFO L354 Elim1Store]: treesize reduction 96, result has 19.3 percent of original size [2021-10-28 09:04:03,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 48 treesize of output 57 [2021-10-28 09:04:03,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:03,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:04:03,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:03,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-28 09:04:04,044 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-10-28 09:04:04,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-10-28 09:04:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:04,202 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 4 loop predicates [2021-10-28 09:04:04,203 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:04,356 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 26 transitions. Complement of second has 7 states. [2021-10-28 09:04:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 0 non-accepting loop states 2 accepting loop states [2021-10-28 09:04:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2021-10-28 09:04:04,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 8 letters. Loop has 7 letters. [2021-10-28 09:04:04,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:04,358 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:04:04,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:04,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 09:04:04,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:04,467 INFO L354 Elim1Store]: treesize reduction 105, result has 17.3 percent of original size [2021-10-28 09:04:04,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 29 [2021-10-28 09:04:04,633 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-10-28 09:04:04,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 39 [2021-10-28 09:04:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:04,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:04:04,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:04,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-28 09:04:05,090 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-10-28 09:04:05,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-10-28 09:04:05,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:05,227 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 4 loop predicates [2021-10-28 09:04:05,227 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:05,547 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 17 states. [2021-10-28 09:04:05,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 6 stem states 4 non-accepting loop states 1 accepting loop states [2021-10-28 09:04:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2021-10-28 09:04:05,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 8 letters. Loop has 7 letters. [2021-10-28 09:04:05,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:05,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 15 letters. Loop has 7 letters. [2021-10-28 09:04:05,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:05,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 8 letters. Loop has 14 letters. [2021-10-28 09:04:05,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:05,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-10-28 09:04:05,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:04:05,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 30 states and 36 transitions. [2021-10-28 09:04:05,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-28 09:04:05,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-28 09:04:05,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2021-10-28 09:04:05,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:04:05,555 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-10-28 09:04:05,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2021-10-28 09:04:05,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-10-28 09:04:05,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-10-28 09:04:05,559 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-10-28 09:04:05,559 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-10-28 09:04:05,559 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:04:05,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-10-28 09:04:05,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:04:05,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:04:05,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:04:05,561 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-28 09:04:05,561 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-10-28 09:04:05,561 INFO L791 eck$LassoCheckResult]: Stem: 918#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 919#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 920#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 921#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 916#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 917#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 922#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 935#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 934#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 926#L24 [2021-10-28 09:04:05,562 INFO L793 eck$LassoCheckResult]: Loop: 926#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 925#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 923#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 914#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 915#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 937#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 936#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 924#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 926#L24 [2021-10-28 09:04:05,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1269321585, now seen corresponding path program 1 times [2021-10-28 09:04:05,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:05,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959289871] [2021-10-28 09:04:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:05,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:05,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:05,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:04:05,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959289871] [2021-10-28 09:04:05,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959289871] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:04:05,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685455776] [2021-10-28 09:04:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:05,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:04:05,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:05,719 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:04:05,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 09:04:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:05,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-28 09:04:05,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:05,945 INFO L354 Elim1Store]: treesize reduction 133, result has 14.2 percent of original size [2021-10-28 09:04:05,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 40 [2021-10-28 09:04:05,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2021-10-28 09:04:06,138 INFO L354 Elim1Store]: treesize reduction 100, result has 27.5 percent of original size [2021-10-28 09:04:06,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 61 [2021-10-28 09:04:06,524 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-10-28 09:04:06,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 42 [2021-10-28 09:04:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:06,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685455776] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:04:06,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:04:06,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 09:04:06,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712188552] [2021-10-28 09:04:06,539 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:04:06,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:06,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 1 times [2021-10-28 09:04:06,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:06,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696008764] [2021-10-28 09:04:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:06,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:06,549 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:06,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:06,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:04:06,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:04:06,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:04:06,936 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:07,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:07,215 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-10-28 09:04:07,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:04:07,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2021-10-28 09:04:07,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:04:07,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 33 transitions. [2021-10-28 09:04:07,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 09:04:07,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 09:04:07,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2021-10-28 09:04:07,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:04:07,219 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-10-28 09:04:07,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2021-10-28 09:04:07,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2021-10-28 09:04:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:07,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-10-28 09:04:07,222 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-10-28 09:04:07,222 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-10-28 09:04:07,222 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 09:04:07,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2021-10-28 09:04:07,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:04:07,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:04:07,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:04:07,224 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-10-28 09:04:07,224 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-10-28 09:04:07,224 INFO L791 eck$LassoCheckResult]: Stem: 1019#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1020#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 1021#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1022#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1017#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1018#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1036#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1033#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1027#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1023#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1024#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1026#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1038#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1035#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1032#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1028#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1029#L24 [2021-10-28 09:04:07,224 INFO L793 eck$LassoCheckResult]: Loop: 1029#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 1030#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1025#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1015#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1016#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1037#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1034#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1031#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1029#L24 [2021-10-28 09:04:07,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:07,225 INFO L85 PathProgramCache]: Analyzing trace with hash -697316795, now seen corresponding path program 1 times [2021-10-28 09:04:07,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:07,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041170278] [2021-10-28 09:04:07,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:07,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:07,243 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:07,266 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:07,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 2 times [2021-10-28 09:04:07,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:07,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289618918] [2021-10-28 09:04:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:07,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:07,275 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:07,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:07,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1710122080, now seen corresponding path program 1 times [2021-10-28 09:04:07,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:07,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627768399] [2021-10-28 09:04:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:07,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 09:04:07,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:04:07,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627768399] [2021-10-28 09:04:07,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627768399] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:04:07,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067040147] [2021-10-28 09:04:07,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:07,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:04:07,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:07,434 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:04:07,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-28 09:04:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:07,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 09:04:07,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:07,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-10-28 09:04:07,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 09:04:07,888 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-10-28 09:04:07,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-10-28 09:04:07,986 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-10-28 09:04:07,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 40 [2021-10-28 09:04:08,697 INFO L354 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size [2021-10-28 09:04:08,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 55 [2021-10-28 09:04:08,848 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:04:08,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 27 [2021-10-28 09:04:08,857 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-28 09:04:08,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067040147] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:04:08,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:04:08,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-10-28 09:04:08,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486724305] [2021-10-28 09:04:09,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:04:09,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:04:09,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:04:09,295 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:10,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:10,526 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-10-28 09:04:10,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:04:10,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2021-10-28 09:04:10,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-10-28 09:04:10,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 38 transitions. [2021-10-28 09:04:10,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-28 09:04:10,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-10-28 09:04:10,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2021-10-28 09:04:10,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:04:10,529 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-10-28 09:04:10,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2021-10-28 09:04:10,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-10-28 09:04:10,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-10-28 09:04:10,533 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-28 09:04:10,533 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-28 09:04:10,533 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 09:04:10,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2021-10-28 09:04:10,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-10-28 09:04:10,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:04:10,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:04:10,535 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-10-28 09:04:10,535 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 2, 2, 1, 1, 1] [2021-10-28 09:04:10,535 INFO L791 eck$LassoCheckResult]: Stem: 1172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1173#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 1174#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1175#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1170#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1171#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1176#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1196#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1195#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1181#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1193#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1191#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1190#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1188#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1185#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1180#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1182#L24 [2021-10-28 09:04:10,535 INFO L793 eck$LassoCheckResult]: Loop: 1182#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 1183#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1177#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1168#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1169#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1198#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1197#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1178#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1179#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1194#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1192#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1187#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1189#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1186#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1184#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1182#L24 [2021-10-28 09:04:10,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:10,536 INFO L85 PathProgramCache]: Analyzing trace with hash -697316795, now seen corresponding path program 2 times [2021-10-28 09:04:10,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:10,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83502388] [2021-10-28 09:04:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:10,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:10,591 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:10,629 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:10,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:10,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2047759866, now seen corresponding path program 1 times [2021-10-28 09:04:10,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:10,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893925748] [2021-10-28 09:04:10,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:10,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:10,649 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:10,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:10,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:10,673 INFO L85 PathProgramCache]: Analyzing trace with hash 462437174, now seen corresponding path program 2 times [2021-10-28 09:04:10,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:10,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78545852] [2021-10-28 09:04:10,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:10,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:10,708 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:10,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:15,554 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:04:15,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:04:15,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:04:15,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:04:15,555 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:04:15,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:15,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:04:15,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:04:15,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration9_Lasso [2021-10-28 09:04:15,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:04:15,555 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:04:15,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:15,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:15,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:15,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:15,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:15,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:15,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:16,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:16,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:16,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:04:16,979 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:04:16,979 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:16,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:16,985 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:16,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:04:16,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:16,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:16,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:04:16,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:16,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:16,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:16,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:04:16,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:04:16,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,020 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:04:17,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:04:17,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:04:17,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:04:17,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,051 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:04:17,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:04:17,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:04:17,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:04:17,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,090 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:04:17,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,123 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:04:17,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,196 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 09:04:17,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,284 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 09:04:17,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,330 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 09:04:17,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,423 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 09:04:17,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 09:04:17,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,465 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 09:04:17,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,511 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 09:04:17,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 09:04:17,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,555 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 09:04:17,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 09:04:17,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,626 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 09:04:17,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:17,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,672 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 09:04:17,674 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 09:04:17,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,719 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 09:04:17,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,731 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,731 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 09:04:17,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,760 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 09:04:17,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:17,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 09:04:17,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,804 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 09:04:17,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:04:17,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:17,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:17,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:17,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:17,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:17,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:17,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:04:17,858 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 09:04:17,858 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-28 09:04:17,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:17,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:17,859 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:17,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 09:04:17,860 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:04:17,869 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:04:17,869 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:04:17,869 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem7) = -2*ULTIMATE.start_main_#t~mem7 + 1 Supporting invariants [] [2021-10-28 09:04:17,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:18,088 INFO L297 tatePredicateManager]: 42 out of 42 supporting invariants were superfluous and have been removed [2021-10-28 09:04:18,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:18,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:04:18,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:18,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 09:04:18,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:18,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 09:04:18,336 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-10-28 09:04:18,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-10-28 09:04:18,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:18,479 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-10-28 09:04:18,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 21 [2021-10-28 09:04:18,579 INFO L354 Elim1Store]: treesize reduction 67, result has 32.3 percent of original size [2021-10-28 09:04:18,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 48 [2021-10-28 09:04:18,857 INFO L354 Elim1Store]: treesize reduction 66, result has 33.3 percent of original size [2021-10-28 09:04:18,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 49 [2021-10-28 09:04:19,079 INFO L354 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2021-10-28 09:04:19,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 49 [2021-10-28 09:04:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:19,204 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2021-10-28 09:04:19,205 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:19,460 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 70 transitions. Complement of second has 23 states. [2021-10-28 09:04:19,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 10 non-accepting loop states 1 accepting loop states [2021-10-28 09:04:19,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:19,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 33 transitions. [2021-10-28 09:04:19,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 16 letters. Loop has 15 letters. [2021-10-28 09:04:19,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:19,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 31 letters. Loop has 15 letters. [2021-10-28 09:04:19,462 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:19,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 16 letters. Loop has 30 letters. [2021-10-28 09:04:19,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:19,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 70 transitions. [2021-10-28 09:04:19,464 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:04:19,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 0 states and 0 transitions. [2021-10-28 09:04:19,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:04:19,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:04:19,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:04:19,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:04:19,465 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:19,465 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:19,465 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:19,466 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 09:04:19,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:04:19,466 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:04:19,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:04:19,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:04:19 BoogieIcfgContainer [2021-10-28 09:04:19,472 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:04:19,472 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:04:19,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:04:19,472 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:04:19,473 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:42" (3/4) ... [2021-10-28 09:04:19,476 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:04:19,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:04:19,477 INFO L168 Benchmark]: Toolchain (without parser) took 37316.59 ms. Allocated memory was 125.8 MB in the beginning and 182.5 MB in the end (delta: 56.6 MB). Free memory was 92.6 MB in the beginning and 45.2 MB in the end (delta: 47.4 MB). Peak memory consumption was 103.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:19,477 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:19,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.65 ms. Allocated memory is still 125.8 MB. Free memory was 92.4 MB in the beginning and 102.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:19,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.78 ms. Allocated memory is still 125.8 MB. Free memory was 102.9 MB in the beginning and 101.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:19,479 INFO L168 Benchmark]: Boogie Preprocessor took 56.91 ms. Allocated memory is still 125.8 MB. Free memory was 101.3 MB in the beginning and 100.4 MB in the end (delta: 924.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:19,479 INFO L168 Benchmark]: RCFGBuilder took 389.95 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 89.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:19,479 INFO L168 Benchmark]: BuchiAutomizer took 36560.50 ms. Allocated memory was 125.8 MB in the beginning and 182.5 MB in the end (delta: 56.6 MB). Free memory was 89.5 MB in the beginning and 45.2 MB in the end (delta: 44.3 MB). Peak memory consumption was 102.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:19,479 INFO L168 Benchmark]: Witness Printer took 4.08 ms. Allocated memory is still 182.5 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:19,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.65 ms. Allocated memory is still 125.8 MB. Free memory was 92.4 MB in the beginning and 102.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.78 ms. Allocated memory is still 125.8 MB. Free memory was 102.9 MB in the beginning and 101.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.91 ms. Allocated memory is still 125.8 MB. Free memory was 101.3 MB in the beginning and 100.4 MB in the end (delta: 924.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 389.95 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 89.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 36560.50 ms. Allocated memory was 125.8 MB in the beginning and 182.5 MB in the end (delta: 56.6 MB). Free memory was 89.5 MB in the beginning and 45.2 MB in the end (delta: 44.3 MB). Peak memory consumption was 102.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.08 ms. Allocated memory is still 182.5 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (6 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 1 + -2 * unknown-#memory_int-unknown[x0][x0] and consists of 5 locations. One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[x1][x1] + 1 and consists of 12 locations. One deterministic module has affine ranking function -2 * aux-x2-aux + 1 and consists of 13 locations. 6 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.4s and 10 iterations. TraceHistogramMax:4. Analysis of lassos took 23.5s. Construction of modules took 3.2s. Büchi inclusion checks took 9.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 8. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 12/22 HoareTripleCheckerStatistics: 39 SDtfs, 90 SDslu, 45 SDs, 0 SdLazy, 464 SolverSat, 124 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 3.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital1233 mio100 ax100 hnf100 lsp98 ukn33 mio100 lsp38 div100 bol100 ite100 ukn100 eq187 hnf88 smp96 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:04:19,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:19,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:19,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:20,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-28 09:04:20,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396557a-92a4-4294-9d16-20e8d58b2d9b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...