./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa --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 d628f3524885345eb9e2318f2d0dbb026e233c3bcc51319b2ad8fc1a71d35580 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:06:55,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:06:55,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:06:55,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:06:55,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:06:55,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:06:55,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:06:55,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:06:55,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:06:55,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:06:55,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:06:55,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:06:55,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:06:55,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:06:55,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:06:55,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:06:55,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:06:55,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:06:55,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:06:55,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:06:55,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:06:55,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:06:55,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:06:55,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:06:55,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:06:55,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:06:55,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:06:55,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:06:55,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:06:55,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:06:55,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:06:55,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:06:55,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:06:55,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:06:55,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:06:55,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:06:55,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:06:55,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:06:55,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:06:55,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:06:55,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:06:55,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 22:06:55,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:06:55,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:06:55,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:06:55,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:06:55,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:06:55,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:06:55,598 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:06:55,598 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 22:06:55,599 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 22:06:55,599 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 22:06:55,599 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 22:06:55,599 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 22:06:55,599 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 22:06:55,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:06:55,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:06:55,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:06:55,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:06:55,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 22:06:55,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 22:06:55,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 22:06:55,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:06:55,600 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 22:06:55,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:06:55,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 22:06:55,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:06:55,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:06:55,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:06:55,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:06:55,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:06:55,602 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 22:06:55,602 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_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d628f3524885345eb9e2318f2d0dbb026e233c3bcc51319b2ad8fc1a71d35580 [2021-12-06 22:06:55,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:06:55,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:06:55,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:06:55,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:06:55,792 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:06:55,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i [2021-12-06 22:06:55,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/data/36e28a6d1/7b5973ea43524fe09eb353ea3999ffd6/FLAGa4ece79bc [2021-12-06 22:06:56,224 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:06:56,225 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i [2021-12-06 22:06:56,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/data/36e28a6d1/7b5973ea43524fe09eb353ea3999ffd6/FLAGa4ece79bc [2021-12-06 22:06:56,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/data/36e28a6d1/7b5973ea43524fe09eb353ea3999ffd6 [2021-12-06 22:06:56,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:06:56,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:06:56,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:06:56,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:06:56,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:06:56,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce6ed61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56, skipping insertion in model container [2021-12-06 22:06:56,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:06:56,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:06:56,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:06:56,473 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:06:56,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:06:56,520 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:06:56,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56 WrapperNode [2021-12-06 22:06:56,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:06:56,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:06:56,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:06:56,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:06:56,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,550 INFO L137 Inliner]: procedures = 109, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2021-12-06 22:06:56,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:06:56,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:06:56,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:06:56,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:06:56,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:06:56,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:06:56,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:06:56,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:06:56,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (1/1) ... [2021-12-06 22:06:56,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:56,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:56,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:56,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 22:06:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:06:56,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:06:56,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:06:56,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:06:56,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:06:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:06:56,701 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:06:56,703 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:06:56,782 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:06:56,786 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:06:56,786 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 22:06:56,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:06:56 BoogieIcfgContainer [2021-12-06 22:06:56,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:06:56,788 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 22:06:56,788 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 22:06:56,791 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 22:06:56,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:06:56,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 10:06:56" (1/3) ... [2021-12-06 22:06:56,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@520866f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:06:56, skipping insertion in model container [2021-12-06 22:06:56,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:06:56,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:06:56" (2/3) ... [2021-12-06 22:06:56,793 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@520866f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:06:56, skipping insertion in model container [2021-12-06 22:06:56,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:06:56,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:06:56" (3/3) ... [2021-12-06 22:06:56,794 INFO L388 chiAutomizerObserver]: Analyzing ICFG java_Sequence-alloca.i [2021-12-06 22:06:56,825 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 22:06:56,825 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 22:06:56,826 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 22:06:56,826 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 22:06:56,826 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 22:06:56,826 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 22:06:56,826 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 22:06:56,826 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 22:06:56,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2021-12-06 22:06:56,850 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-06 22:06:56,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:06:56,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:06:56,854 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 22:06:56,854 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:06:56,854 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 22:06:56,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2021-12-06 22:06:56,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-06 22:06:56,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:06:56,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:06:56,856 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 22:06:56,857 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:06:56,861 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 6#L552-4true [2021-12-06 22:06:56,861 INFO L793 eck$LassoCheckResult]: Loop: 6#L552-4true call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 11#L552-1true assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 5#L552-3true call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 6#L552-4true [2021-12-06 22:06:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:56,866 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 22:06:56,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:06:56,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598473679] [2021-12-06 22:06:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:56,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:06:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:56,972 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:06:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:57,004 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:06:57,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:57,006 INFO L85 PathProgramCache]: Analyzing trace with hash 35911, now seen corresponding path program 1 times [2021-12-06 22:06:57,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:06:57,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641874516] [2021-12-06 22:06:57,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:57,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:06:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:57,019 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:06:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:57,029 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:06:57,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:57,030 INFO L85 PathProgramCache]: Analyzing trace with hash 28694853, now seen corresponding path program 1 times [2021-12-06 22:06:57,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:06:57,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67237725] [2021-12-06 22:06:57,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:57,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:06:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:57,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:06:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:57,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:06:57,462 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:06:57,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:06:57,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:06:57,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:06:57,463 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 22:06:57,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:57,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:06:57,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:06:57,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence-alloca.i_Iteration1_Lasso [2021-12-06 22:06:57,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:06:57,464 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:06:57,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:06:57,866 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:06:57,872 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 22:06:57,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:57,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:57,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:57,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 22:06:57,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 22:06:57,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:57,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:57,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:57,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:57,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:57,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:57,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:57,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:06:57,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:57,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:57,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:57,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 22:06:57,913 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 [2021-12-06 22:06:57,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:57,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:57,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:57,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:57,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:57,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:57,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:57,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 22:06:57,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:57,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:57,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:57,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 22:06:57,946 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 [2021-12-06 22:06:57,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:57,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:57,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:57,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:57,956 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:57,956 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:57,958 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:57,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 22:06:57,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:57,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:57,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:57,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 22:06:57,979 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 [2021-12-06 22:06:57,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:57,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:06:57,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:57,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:57,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:57,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:06:57,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:06:57,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 22:06:58,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,007 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 22:06:58,009 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 [2021-12-06 22:06:58,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,019 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 22:06:58,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,041 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 22:06:58,042 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 [2021-12-06 22:06:58,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:06:58,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:06:58,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:06:58,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-06 22:06:58,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,070 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 22:06:58,071 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 [2021-12-06 22:06:58,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-06 22:06:58,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 22:06:58,103 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 [2021-12-06 22:06:58,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:06:58,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:06:58,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:06:58,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 22:06:58,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,131 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 22:06:58,132 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 [2021-12-06 22:06:58,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:06:58,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:06:58,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:06:58,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 22:06:58,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,159 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 22:06:58,161 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 [2021-12-06 22:06:58,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:06:58,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:06:58,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:06:58,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-06 22:06:58,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,190 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 22:06:58,191 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 [2021-12-06 22:06:58,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:06:58,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:06:58,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:06:58,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-06 22:06:58,218 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,219 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 22:06:58,224 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 [2021-12-06 22:06:58,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 22:06:58,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,255 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 22:06:58,256 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 [2021-12-06 22:06:58,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 22:06:58,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,295 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 22:06:58,297 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 [2021-12-06 22:06:58,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-06 22:06:58,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,332 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 22:06:58,333 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 [2021-12-06 22:06:58,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 22:06:58,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,365 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 22:06:58,367 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 [2021-12-06 22:06:58,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 22:06:58,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,407 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 22:06:58,408 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 [2021-12-06 22:06:58,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 22:06:58,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,441 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 22:06:58,442 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 [2021-12-06 22:06:58,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,450 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,450 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,452 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 22:06:58,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,472 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 22:06:58,473 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 [2021-12-06 22:06:58,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:06:58,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 22:06:58,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,503 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 22:06:58,504 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 [2021-12-06 22:06:58,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:06:58,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:06:58,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:06:58,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:06:58,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:06:58,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:06:58,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 22:06:58,525 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-06 22:06:58,526 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-06 22:06:58,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:06:58,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:58,528 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:06:58,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 22:06:58,532 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 22:06:58,540 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 22:06:58,540 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 22:06:58,540 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1 + 199 Supporting invariants [] [2021-12-06 22:06:58,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 22:06:58,607 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2021-12-06 22:06:58,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:06:58,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 22:06:58,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:06:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:06:58,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 22:06:58,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:06:58,718 INFO L354 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-06 22:06:58,719 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 39 treesize of output 50 [2021-12-06 22:06:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:06:58,821 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 22:06:58,821 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) 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) [2021-12-06 22:06:58,868 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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). 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 25 states and 31 transitions. Complement of second has 10 states. [2021-12-06 22:06:58,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-06 22:06:58,873 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) [2021-12-06 22:06:58,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2021-12-06 22:06:58,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 2 letters. Loop has 3 letters. [2021-12-06 22:06:58,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:06:58,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2021-12-06 22:06:58,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:06:58,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 2 letters. Loop has 6 letters. [2021-12-06 22:06:58,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:06:58,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2021-12-06 22:06:58,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:06:58,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 13 transitions. [2021-12-06 22:06:58,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 22:06:58,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 22:06:58,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-12-06 22:06:58,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:06:58,882 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-06 22:06:58,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 22:06:58,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-12-06 22:06:58,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-06 22:06:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:06:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-12-06 22:06:58,900 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-06 22:06:58,900 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-06 22:06:58,901 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 22:06:58,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2021-12-06 22:06:58,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:06:58,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:06:58,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:06:58,901 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 22:06:58,901 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:06:58,902 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 153#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 155#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 156#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 157#L553-4 [2021-12-06 22:06:58,902 INFO L793 eck$LassoCheckResult]: Loop: 157#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 159#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 158#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 157#L553-4 [2021-12-06 22:06:58,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:58,902 INFO L85 PathProgramCache]: Analyzing trace with hash 28694795, now seen corresponding path program 1 times [2021-12-06 22:06:58,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:06:58,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209081085] [2021-12-06 22:06:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:58,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:06:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:06:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:06:58,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:06:58,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209081085] [2021-12-06 22:06:58,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209081085] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:06:58,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:06:58,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:06:58,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232712750] [2021-12-06 22:06:58,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:06:58,956 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:06:58,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:58,957 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 1 times [2021-12-06 22:06:58,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:06:58,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564040039] [2021-12-06 22:06:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:58,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:06:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:58,966 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:06:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:58,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:06:59,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:06:59,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:06:59,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:06:59,032 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 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) [2021-12-06 22:06:59,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:06:59,052 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-12-06 22:06:59,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 22:06:59,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2021-12-06 22:06:59,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:06:59,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2021-12-06 22:06:59,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 22:06:59,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 22:06:59,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-12-06 22:06:59,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:06:59,054 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-06 22:06:59,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-12-06 22:06:59,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-12-06 22:06:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:06:59,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-12-06 22:06:59,055 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-12-06 22:06:59,055 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-12-06 22:06:59,055 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 22:06:59,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-12-06 22:06:59,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:06:59,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:06:59,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:06:59,056 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-06 22:06:59,056 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:06:59,057 INFO L791 eck$LassoCheckResult]: Stem: 182#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 183#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 186#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 187#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 184#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 185#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 188#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 189#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 190#L553-4 [2021-12-06 22:06:59,057 INFO L793 eck$LassoCheckResult]: Loop: 190#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 192#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 191#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 190#L553-4 [2021-12-06 22:06:59,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:59,057 INFO L85 PathProgramCache]: Analyzing trace with hash 149879881, now seen corresponding path program 1 times [2021-12-06 22:06:59,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:06:59,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304637520] [2021-12-06 22:06:59,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:59,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:06:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:06:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:06:59,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:06:59,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304637520] [2021-12-06 22:06:59,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304637520] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:06:59,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252466077] [2021-12-06 22:06:59,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:59,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:06:59,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:59,136 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:06:59,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-12-06 22:06:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:06:59,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 22:06:59,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:06:59,212 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-12-06 22:06:59,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2021-12-06 22:06:59,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-06 22:06:59,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 11 [2021-12-06 22:06:59,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2021-12-06 22:06:59,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2021-12-06 22:06:59,278 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 15 treesize of output 11 [2021-12-06 22:06:59,317 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:06:59,318 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 28 treesize of output 35 [2021-12-06 22:06:59,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:06:59,406 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 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-06 22:06:59,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-12-06 22:06:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:06:59,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:06:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:06:59,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252466077] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:06:59,492 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:06:59,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2021-12-06 22:06:59,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422413140] [2021-12-06 22:06:59,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:06:59,493 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:06:59,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:59,493 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 2 times [2021-12-06 22:06:59,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:06:59,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723262801] [2021-12-06 22:06:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:59,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:06:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:59,501 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:06:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:06:59,508 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:06:59,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:06:59,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:06:59,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:06:59,560 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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) [2021-12-06 22:06:59,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:06:59,615 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-12-06 22:06:59,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 22:06:59,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 21 transitions. [2021-12-06 22:06:59,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:06:59,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 19 transitions. [2021-12-06 22:06:59,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 22:06:59,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 22:06:59,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 19 transitions. [2021-12-06 22:06:59,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:06:59,618 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-12-06 22:06:59,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 19 transitions. [2021-12-06 22:06:59,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-12-06 22:06:59,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 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) [2021-12-06 22:06:59,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-12-06 22:06:59,621 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-12-06 22:06:59,621 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-12-06 22:06:59,621 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 22:06:59,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-12-06 22:06:59,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:06:59,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:06:59,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:06:59,622 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 1, 1, 1, 1] [2021-12-06 22:06:59,622 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:06:59,622 INFO L791 eck$LassoCheckResult]: Stem: 281#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 282#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 283#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 284#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 279#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 280#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 285#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 295#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 294#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 292#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 293#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 291#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 290#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 286#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 287#L553-4 [2021-12-06 22:06:59,622 INFO L793 eck$LassoCheckResult]: Loop: 287#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 289#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 288#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 287#L553-4 [2021-12-06 22:06:59,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:06:59,623 INFO L85 PathProgramCache]: Analyzing trace with hash -579836663, now seen corresponding path program 2 times [2021-12-06 22:06:59,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:06:59,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037174793] [2021-12-06 22:06:59,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:06:59,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:06:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:06:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:06:59,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:06:59,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037174793] [2021-12-06 22:06:59,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037174793] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:06:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464757593] [2021-12-06 22:06:59,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:06:59,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:06:59,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:06:59,813 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:06:59,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-12-06 22:06:59,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 22:06:59,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:06:59,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-06 22:06:59,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:06:59,882 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 [2021-12-06 22:06:59,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:06:59,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2021-12-06 22:06:59,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-06 22:06:59,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 22:06:59,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-06 22:06:59,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 22:06:59,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-06 22:06:59,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 22:06:59,977 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 28 treesize of output 16 [2021-12-06 22:06:59,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-12-06 22:06:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:06:59,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:07:00,022 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_208 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99)) is different from false [2021-12-06 22:07:00,032 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_208 (Array Int Int)) (v_ArrVal_206 Int)) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_206)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99) (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_206)))) is different from false [2021-12-06 22:07:00,043 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_205 (Array Int Int)) (v_ArrVal_208 (Array Int Int)) (v_ArrVal_206 Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_205))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_206) (< (select (select (store (store .cse1 |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_206)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99))))) is different from false [2021-12-06 22:07:00,073 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_205 (Array Int Int)) (v_ArrVal_208 (Array Int Int)) (v_ArrVal_206 Int) (v_ArrVal_204 Int)) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base|))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_204)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_205))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_206) (< (select (select (store (store .cse1 |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_206)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99) (< (+ (select .cse2 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_204)))))) is different from false [2021-12-06 22:07:00,101 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_205 (Array Int Int)) (v_ArrVal_208 (Array Int Int)) (v_ArrVal_206 Int) (v_ArrVal_202 (Array Int Int)) (v_ArrVal_204 Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_202))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_main_~i~0#1.base|))) (let ((.cse0 (store (store .cse3 |c_ULTIMATE.start_main_~i~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_204)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_205))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_main_~i~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_206)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99) (< (+ (select .cse2 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_204) (< (+ (select .cse1 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_206))))))) is different from false [2021-12-06 22:07:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2021-12-06 22:07:00,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464757593] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:07:00,139 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:07:00,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 10] total 24 [2021-12-06 22:07:00,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517121794] [2021-12-06 22:07:00,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:07:00,139 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 22:07:00,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:07:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 3 times [2021-12-06 22:07:00,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:07:00,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608517600] [2021-12-06 22:07:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:07:00,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:07:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:07:00,144 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:07:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:07:00,148 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:07:00,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:07:00,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 22:07:00,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=229, Unknown=5, NotChecked=190, Total=552 [2021-12-06 22:07:00,206 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. cyclomatic complexity: 3 Second operand has 24 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:07:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:07:00,362 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2021-12-06 22:07:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 22:07:00,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 31 transitions. [2021-12-06 22:07:00,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:07:00,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 28 transitions. [2021-12-06 22:07:00,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 22:07:00,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 22:07:00,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 28 transitions. [2021-12-06 22:07:00,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:07:00,365 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-06 22:07:00,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 28 transitions. [2021-12-06 22:07:00,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-12-06 22:07:00,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:07:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-12-06 22:07:00,367 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-12-06 22:07:00,367 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-12-06 22:07:00,367 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 22:07:00,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 27 transitions. [2021-12-06 22:07:00,367 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:07:00,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:07:00,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:07:00,368 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 6, 6, 1, 1, 1, 1] [2021-12-06 22:07:00,368 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:07:00,368 INFO L791 eck$LassoCheckResult]: Stem: 449#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 450#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 453#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 454#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 474#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 455#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 456#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 451#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 452#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 473#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 472#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 471#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 470#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 469#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 468#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 467#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 466#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 465#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 463#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 464#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 462#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 461#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 459#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 458#L553-4 [2021-12-06 22:07:00,368 INFO L793 eck$LassoCheckResult]: Loop: 458#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 460#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 457#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 458#L553-4 [2021-12-06 22:07:00,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:07:00,369 INFO L85 PathProgramCache]: Analyzing trace with hash -733972789, now seen corresponding path program 3 times [2021-12-06 22:07:00,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:07:00,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945315694] [2021-12-06 22:07:00,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:07:00,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:07:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:07:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:07:00,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:07:00,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945315694] [2021-12-06 22:07:00,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945315694] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:07:00,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709384582] [2021-12-06 22:07:00,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 22:07:00,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:07:00,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:07:00,688 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:07:00,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b63712-4dd5-4754-bcea-391516e3c15c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-12-06 22:07:00,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-12-06 22:07:00,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:07:00,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 49 conjunts are in the unsatisfiable core [2021-12-06 22:07:00,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:07:00,820 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-12-06 22:07:00,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2021-12-06 22:07:00,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-06 22:07:00,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 11 [2021-12-06 22:07:00,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-12-06 22:07:00,845 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 9 treesize of output 7 [2021-12-06 22:07:00,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 11 [2021-12-06 22:07:00,896 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:00,896 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 28 treesize of output 35 [2021-12-06 22:07:00,954 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:00,954 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 40 treesize of output 43 [2021-12-06 22:07:01,022 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,022 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 40 treesize of output 43 [2021-12-06 22:07:01,080 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,080 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 40 treesize of output 43 [2021-12-06 22:07:01,144 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,145 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 40 treesize of output 43 [2021-12-06 22:07:01,204 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,204 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 40 treesize of output 43 [2021-12-06 22:07:01,266 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,266 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 40 treesize of output 43 [2021-12-06 22:07:01,336 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,337 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 40 treesize of output 43 [2021-12-06 22:07:01,414 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,415 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 40 treesize of output 43 [2021-12-06 22:07:01,478 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,479 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 40 treesize of output 43 [2021-12-06 22:07:01,550 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-06 22:07:01,550 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 40 treesize of output 43 [2021-12-06 22:07:01,600 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:07:01,600 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 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-06 22:07:01,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-12-06 22:07:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:07:01,619 INFO L328 TraceCheckSpWp]: Computing backward predicates...