./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.12-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_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/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_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/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_129f0b08-b536-426c-99d6-2c5c5cd6c833/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 f1855ccd5ef0c8491e97368f082ce5aab941ff0c5bf681c3496fd6584d783f6d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:35:32,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:35:32,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:35:32,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:35:32,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:35:32,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:35:32,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:35:32,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:35:32,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:35:32,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:35:32,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:35:32,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:35:32,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:35:32,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:35:32,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:35:32,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:35:32,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:35:32,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:35:32,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:35:32,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:35:32,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:35:32,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:35:32,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:35:32,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:35:32,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:35:32,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:35:32,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:35:32,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:35:32,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:35:32,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:35:32,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:35:32,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:35:32,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:35:32,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:35:32,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:35:32,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:35:32,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:35:32,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:35:32,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:35:32,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:35:32,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:35:32,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 22:35:32,794 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:35:32,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:35:32,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:35:32,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:35:32,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:35:32,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:35:32,797 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:35:32,797 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 22:35:32,797 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 22:35:32,797 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 22:35:32,797 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 22:35:32,798 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 22:35:32,798 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 22:35:32,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:35:32,798 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:35:32,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:35:32,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:35:32,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 22:35:32,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 22:35:32,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 22:35:32,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:35:32,799 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 22:35:32,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:35:32,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 22:35:32,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:35:32,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:35:32,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:35:32,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:35:32,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:35:32,802 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 22:35:32,802 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_129f0b08-b536-426c-99d6-2c5c5cd6c833/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1855ccd5ef0c8491e97368f082ce5aab941ff0c5bf681c3496fd6584d783f6d [2021-12-06 22:35:33,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:35:33,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:35:33,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:35:33,023 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:35:33,023 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:35:33,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i [2021-12-06 22:35:33,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/data/b35dd1998/554cb17a352c4feda08b130e67c9180c/FLAGc26b05a31 [2021-12-06 22:35:33,484 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:35:33,485 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i [2021-12-06 22:35:33,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/data/b35dd1998/554cb17a352c4feda08b130e67c9180c/FLAGc26b05a31 [2021-12-06 22:35:33,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/data/b35dd1998/554cb17a352c4feda08b130e67c9180c [2021-12-06 22:35:33,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:35:33,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:35:33,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:35:33,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:35:33,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:35:33,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77be273f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33, skipping insertion in model container [2021-12-06 22:35:33,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:35:33,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:35:33,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:35:33,791 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:35:33,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:35:33,846 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:35:33,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33 WrapperNode [2021-12-06 22:35:33,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:35:33,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:35:33,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:35:33,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:35:33,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,885 INFO L137 Inliner]: procedures = 111, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2021-12-06 22:35:33,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:35:33,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:35:33,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:35:33,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:35:33,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:35:33,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:35:33,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:35:33,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:35:33,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (1/1) ... [2021-12-06 22:35:33,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:33,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:33,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:33,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 22:35:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:35:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:35:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:35:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:35:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:35:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:35:34,054 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:35:34,055 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:35:34,135 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:35:34,139 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:35:34,139 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 22:35:34,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:35:34 BoogieIcfgContainer [2021-12-06 22:35:34,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:35:34,141 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 22:35:34,141 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 22:35:34,144 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 22:35:34,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:35:34,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 10:35:33" (1/3) ... [2021-12-06 22:35:34,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10438f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:35:34, skipping insertion in model container [2021-12-06 22:35:34,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:35:34,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:35:33" (2/3) ... [2021-12-06 22:35:34,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10438f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:35:34, skipping insertion in model container [2021-12-06 22:35:34,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:35:34,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:35:34" (3/3) ... [2021-12-06 22:35:34,146 INFO L388 chiAutomizerObserver]: Analyzing ICFG b.12-alloca.i [2021-12-06 22:35:34,176 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 22:35:34,177 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 22:35:34,177 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 22:35:34,177 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 22:35:34,177 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 22:35:34,177 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 22:35:34,177 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 22:35:34,177 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 22:35:34,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:34,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 22:35:34,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:35:34,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:35:34,210 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 22:35:34,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 22:35:34,210 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 22:35:34,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:34,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 22:35:34,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:35:34,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:35:34,213 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 22:35:34,213 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 22:35:34,218 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem8#1, test_fun_#t~mem9#1, test_fun_#t~mem10#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem6#1, test_fun_#t~short7#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 9#L559-2true [2021-12-06 22:35:34,218 INFO L793 eck$LassoCheckResult]: Loop: 9#L559-2true call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 12#L555-1true assume test_fun_#t~short7#1; 6#L555-3true assume !!test_fun_#t~short7#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~short7#1;call test_fun_#t~mem8#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 8#L556true assume test_fun_#t~mem8#1 > 0;havoc test_fun_#t~mem8#1;call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem9#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem9#1; 9#L559-2true [2021-12-06 22:35:34,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:34,223 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 22:35:34,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:34,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153159865] [2021-12-06 22:35:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:34,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:34,333 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:34,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:34,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:34,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 1 times [2021-12-06 22:35:34,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:34,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944345534] [2021-12-06 22:35:34,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:34,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:34,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:34,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:34,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:34,391 INFO L85 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2021-12-06 22:35:34,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:34,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512202418] [2021-12-06 22:35:34,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:34,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:34,422 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:34,448 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:34,914 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:35:34,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:35:34,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:35:34,914 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:35:34,914 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 22:35:34,914 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:34,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:35:34,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:35:34,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12-alloca.i_Iteration1_Lasso [2021-12-06 22:35:34,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:35:34,915 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:35:34,929 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 22:35:34,933 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 22:35:34,935 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 22:35:34,936 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 22:35:34,938 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 22:35:34,940 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 22:35:35,128 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 22:35:35,130 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 22:35:35,131 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 22:35:35,133 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 22:35:35,134 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 22:35:35,135 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 22:35:35,136 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 22:35:35,137 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 22:35:35,138 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 22:35:35,139 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 22:35:35,140 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 22:35:35,141 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 22:35:35,334 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:35:35,339 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 22:35:35,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 22:35:35,343 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 22:35:35,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:35:35,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:35:35,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:35:35,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:35:35,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,375 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 22:35:35,376 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 22:35:35,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:35:35,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:35:35,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:35:35,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 22:35:35,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 22:35:35,406 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 22:35:35,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:35:35,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:35:35,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:35:35,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 22:35:35,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 22:35:35,437 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 22:35:35,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:35:35,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:35:35,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:35:35,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 22:35:35,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 22:35:35,466 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 22:35:35,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:35,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:35,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 22:35:35,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,498 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 22:35:35,499 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 22:35:35,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:35,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:35,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 22:35:35,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,535 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 22:35:35,536 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 22:35:35,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:35,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:35,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-06 22:35:35,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,566 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 22:35:35,567 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 22:35:35,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:35,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:35,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 22:35:35,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,602 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 22:35:35,603 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 22:35:35,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:35,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:35,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-06 22:35:35,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,640 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 22:35:35,642 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 22:35:35,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:35,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:35,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:35,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 22:35:35,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,676 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 22:35:35,677 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 22:35:35,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:35,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:35,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:35,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:35,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:35,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:35,694 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 22:35:35,715 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-06 22:35:35,715 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-06 22:35:35,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:35,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:35,718 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:35,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 22:35:35,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 22:35:35,729 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 22:35:35,730 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 22:35:35,730 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_1 Supporting invariants [] [2021-12-06 22:35:35,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 22:35:35,796 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2021-12-06 22:35:35,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:35,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 22:35:35,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:35:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:35,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 22:35:35,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:35:35,902 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 22:35:35,929 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 22:35:35,930 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:35,992 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 67 transitions. Complement of second has 9 states. [2021-12-06 22:35:35,993 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 22:35:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:35,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2021-12-06 22:35:35,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-06 22:35:36,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:35:36,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-06 22:35:36,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:35:36,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 2 letters. Loop has 8 letters. [2021-12-06 22:35:36,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:35:36,001 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 67 transitions. [2021-12-06 22:35:36,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-12-06 22:35:36,009 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 25 states and 39 transitions. [2021-12-06 22:35:36,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-06 22:35:36,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-06 22:35:36,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 39 transitions. [2021-12-06 22:35:36,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:35:36,011 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 39 transitions. [2021-12-06 22:35:36,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 39 transitions. [2021-12-06 22:35:36,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-12-06 22:35:36,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 23 states have internal predecessors, (37), 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 22:35:36,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 37 transitions. [2021-12-06 22:35:36,031 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2021-12-06 22:35:36,032 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2021-12-06 22:35:36,032 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 22:35:36,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 37 transitions. [2021-12-06 22:35:36,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-12-06 22:35:36,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:35:36,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:35:36,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 22:35:36,034 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 22:35:36,034 INFO L791 eck$LassoCheckResult]: Stem: 175#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 176#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem8#1, test_fun_#t~mem9#1, test_fun_#t~mem10#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem6#1, test_fun_#t~short7#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 191#L559-2 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 189#L555-1 [2021-12-06 22:35:36,034 INFO L793 eck$LassoCheckResult]: Loop: 189#L555-1 assume !test_fun_#t~short7#1;call test_fun_#t~mem6#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem6#1 > 0; 192#L555-3 assume !!test_fun_#t~short7#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~short7#1;call test_fun_#t~mem8#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 194#L556 assume test_fun_#t~mem8#1 > 0;havoc test_fun_#t~mem8#1;call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem9#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem9#1; 182#L559-2 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 189#L555-1 [2021-12-06 22:35:36,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,035 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-06 22:35:36,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395317391] [2021-12-06 22:35:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,081 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:36,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 22:35:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,104 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:36,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1298969, now seen corresponding path program 1 times [2021-12-06 22:35:36,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103726973] [2021-12-06 22:35:36,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,115 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:36,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908732, now seen corresponding path program 1 times [2021-12-06 22:35:36,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743888814] [2021-12-06 22:35:36,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:35:36,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:35:36,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743888814] [2021-12-06 22:35:36,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743888814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:35:36,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:35:36,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:35:36,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617349709] [2021-12-06 22:35:36,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:35:36,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:35:36,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:35:36,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:35:36,339 INFO L87 Difference]: Start difference. First operand 24 states and 37 transitions. cyclomatic complexity: 15 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:36,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:35:36,373 INFO L93 Difference]: Finished difference Result 38 states and 55 transitions. [2021-12-06 22:35:36,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:35:36,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2021-12-06 22:35:36,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-12-06 22:35:36,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 39 transitions. [2021-12-06 22:35:36,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-12-06 22:35:36,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-06 22:35:36,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 39 transitions. [2021-12-06 22:35:36,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:35:36,378 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2021-12-06 22:35:36,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 39 transitions. [2021-12-06 22:35:36,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 14. [2021-12-06 22:35:36,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2021-12-06 22:35:36,381 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2021-12-06 22:35:36,381 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2021-12-06 22:35:36,381 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 22:35:36,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2021-12-06 22:35:36,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 22:35:36,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:35:36,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:35:36,382 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 22:35:36,382 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-06 22:35:36,382 INFO L791 eck$LassoCheckResult]: Stem: 249#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 250#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem8#1, test_fun_#t~mem9#1, test_fun_#t~mem10#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem6#1, test_fun_#t~short7#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 262#L559-2 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 260#L555-1 [2021-12-06 22:35:36,382 INFO L793 eck$LassoCheckResult]: Loop: 260#L555-1 assume test_fun_#t~short7#1; 251#L555-3 assume !!test_fun_#t~short7#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~short7#1;call test_fun_#t~mem8#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 252#L556 assume !(test_fun_#t~mem8#1 > 0);havoc test_fun_#t~mem8#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 255#L559 assume test_fun_#t~mem10#1 > 0;havoc test_fun_#t~mem10#1;call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 256#L559-2 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 260#L555-1 [2021-12-06 22:35:36,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,383 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 2 times [2021-12-06 22:35:36,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861213625] [2021-12-06 22:35:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,401 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,413 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:36,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,414 INFO L85 PathProgramCache]: Analyzing trace with hash 38423515, now seen corresponding path program 1 times [2021-12-06 22:35:36,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777007000] [2021-12-06 22:35:36,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,420 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,425 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:36,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,426 INFO L85 PathProgramCache]: Analyzing trace with hash 177751320, now seen corresponding path program 1 times [2021-12-06 22:35:36,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221847603] [2021-12-06 22:35:36,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:35:36,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:35:36,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221847603] [2021-12-06 22:35:36,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221847603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:35:36,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:35:36,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:35:36,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652257856] [2021-12-06 22:35:36,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:35:36,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:35:36,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:35:36,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:35:36,531 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:35:36,550 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-12-06 22:35:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:35:36,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2021-12-06 22:35:36,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 22:35:36,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2021-12-06 22:35:36,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 22:35:36,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 22:35:36,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-12-06 22:35:36,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:35:36,552 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-06 22:35:36,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-12-06 22:35:36,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-06 22:35:36,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-12-06 22:35:36,553 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-06 22:35:36,553 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-06 22:35:36,553 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 22:35:36,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-12-06 22:35:36,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 22:35:36,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:35:36,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:35:36,554 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 22:35:36,554 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-06 22:35:36,554 INFO L791 eck$LassoCheckResult]: Stem: 289#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 290#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem8#1, test_fun_#t~mem9#1, test_fun_#t~mem10#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem6#1, test_fun_#t~short7#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 300#L559-2 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 298#L555-1 [2021-12-06 22:35:36,554 INFO L793 eck$LassoCheckResult]: Loop: 298#L555-1 assume !test_fun_#t~short7#1;call test_fun_#t~mem6#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem6#1 > 0; 291#L555-3 assume !!test_fun_#t~short7#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~short7#1;call test_fun_#t~mem8#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 292#L556 assume !(test_fun_#t~mem8#1 > 0);havoc test_fun_#t~mem8#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 295#L559 assume test_fun_#t~mem10#1 > 0;havoc test_fun_#t~mem10#1;call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 296#L559-2 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 298#L555-1 [2021-12-06 22:35:36,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,555 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 3 times [2021-12-06 22:35:36,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574516704] [2021-12-06 22:35:36,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,566 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:36,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,576 INFO L85 PathProgramCache]: Analyzing trace with hash 40270557, now seen corresponding path program 1 times [2021-12-06 22:35:36,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439447128] [2021-12-06 22:35:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,582 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:36,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:36,589 INFO L85 PathProgramCache]: Analyzing trace with hash 179598362, now seen corresponding path program 1 times [2021-12-06 22:35:36,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:36,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559783385] [2021-12-06 22:35:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:36,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,603 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:36,616 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:37,120 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:35:37,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:35:37,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:35:37,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:35:37,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 22:35:37,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:37,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:35:37,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:35:37,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12-alloca.i_Iteration4_Lasso [2021-12-06 22:35:37,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:35:37,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:35:37,123 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 22:35:37,125 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 22:35:37,507 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 22:35:37,508 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 22:35:37,509 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 22:35:37,510 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 22:35:37,511 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 22:35:37,512 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 22:35:37,513 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 22:35:37,514 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 22:35:37,515 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 22:35:37,516 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 22:35:37,517 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 22:35:37,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:35:37,519 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 22:35:37,520 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 22:35:37,779 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:35:37,779 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 22:35:37,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:37,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:37,780 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:37,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 22:35:37,781 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 22:35:37,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:37,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:35:37,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:37,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:37,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:37,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:35:37,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:35:37,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:37,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 22:35:37,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:37,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:37,810 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:37,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 22:35:37,811 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 22:35:37,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:37,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:37,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:37,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:37,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:37,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:37,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:37,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-06 22:35:37,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:37,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:37,842 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:37,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 22:35:37,848 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 22:35:37,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:37,855 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-06 22:35:37,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:37,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:37,860 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-12-06 22:35:37,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:37,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:37,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-06 22:35:37,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:37,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:37,887 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:37,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 22:35:37,888 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 22:35:37,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:37,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:37,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:37,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:37,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:37,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:37,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:35:37,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 22:35:37,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:37,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:37,918 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:37,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 22:35:37,919 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 22:35:37,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:35:37,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:35:37,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:35:37,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:35:37,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 22:35:37,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 22:35:37,933 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 22:35:37,940 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-06 22:35:37,940 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-06 22:35:37,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:35:37,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:35:37,940 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:35:37,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 22:35:37,942 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 22:35:37,950 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 22:35:37,950 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 22:35:37,950 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_2 Supporting invariants [] [2021-12-06 22:35:37,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 22:35:38,010 INFO L297 tatePredicateManager]: 20 out of 20 supporting invariants were superfluous and have been removed [2021-12-06 22:35:38,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:38,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 22:35:38,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:35:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:38,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 22:35:38,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:35:38,106 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 35 treesize of output 19 [2021-12-06 22:35:38,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 22:35:38,116 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 22:35:38,116 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-06 22:35:38,116 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:38,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 8 states. [2021-12-06 22:35:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-06 22:35:38,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:38,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2021-12-06 22:35:38,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 5 letters. [2021-12-06 22:35:38,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:35:38,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 8 letters. Loop has 5 letters. [2021-12-06 22:35:38,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:35:38,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 10 letters. [2021-12-06 22:35:38,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:35:38,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-12-06 22:35:38,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 22:35:38,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 38 transitions. [2021-12-06 22:35:38,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-06 22:35:38,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-06 22:35:38,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2021-12-06 22:35:38,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 22:35:38,142 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-12-06 22:35:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2021-12-06 22:35:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2021-12-06 22:35:38,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.28) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:38,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-12-06 22:35:38,144 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-12-06 22:35:38,144 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-12-06 22:35:38,144 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 22:35:38,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 32 transitions. [2021-12-06 22:35:38,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 22:35:38,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:35:38,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:35:38,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 22:35:38,145 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-06 22:35:38,145 INFO L791 eck$LassoCheckResult]: Stem: 464#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 465#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem8#1, test_fun_#t~mem9#1, test_fun_#t~mem10#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem6#1, test_fun_#t~short7#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 479#L559-2 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 486#L555-1 assume !test_fun_#t~short7#1;call test_fun_#t~mem6#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem6#1 > 0; 466#L555-3 [2021-12-06 22:35:38,145 INFO L793 eck$LassoCheckResult]: Loop: 466#L555-3 assume !!test_fun_#t~short7#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~short7#1;call test_fun_#t~mem8#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 467#L556 assume !(test_fun_#t~mem8#1 > 0);havoc test_fun_#t~mem8#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 470#L559 assume !(test_fun_#t~mem10#1 > 0);havoc test_fun_#t~mem10#1; 471#L559-2 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem5#1 > 0; 477#L555-1 assume !test_fun_#t~short7#1;call test_fun_#t~mem6#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short7#1 := test_fun_#t~mem6#1 > 0; 466#L555-3 [2021-12-06 22:35:38,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:38,145 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-12-06 22:35:38,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:38,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249493135] [2021-12-06 22:35:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:38,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:38,161 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:38,169 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:38,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash 45964859, now seen corresponding path program 1 times [2021-12-06 22:35:38,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:38,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256556878] [2021-12-06 22:35:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:38,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:38,173 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:35:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:35:38,177 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:35:38,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:35:38,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1272583860, now seen corresponding path program 1 times [2021-12-06 22:35:38,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:35:38,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403587857] [2021-12-06 22:35:38,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:35:38,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:35:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:35:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:35:38,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:35:38,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403587857] [2021-12-06 22:35:38,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403587857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:35:38,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:35:38,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:35:38,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484596402] [2021-12-06 22:35:38,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:35:38,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:35:38,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:35:38,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:35:38,284 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:35:38,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:35:38,300 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2021-12-06 22:35:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:35:38,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-12-06 22:35:38,302 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 22:35:38,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-12-06 22:35:38,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 22:35:38,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 22:35:38,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 22:35:38,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:35:38,303 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:35:38,303 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:35:38,303 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:35:38,303 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 22:35:38,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 22:35:38,303 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 22:35:38,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 22:35:38,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 10:35:38 BoogieIcfgContainer [2021-12-06 22:35:38,309 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 22:35:38,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:35:38,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:35:38,310 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:35:38,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:35:34" (3/4) ... [2021-12-06 22:35:38,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:35:38,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:35:38,314 INFO L158 Benchmark]: Toolchain (without parser) took 4803.27ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 80.5MB in the beginning and 83.5MB in the end (delta: -3.0MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-12-06 22:35:38,314 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 98.1MB in the beginning and 98.0MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:35:38,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.99ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 87.8MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:35:38,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.60ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:35:38,315 INFO L158 Benchmark]: Boogie Preprocessor took 22.70ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 84.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:35:38,316 INFO L158 Benchmark]: RCFGBuilder took 231.22ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 73.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 22:35:38,316 INFO L158 Benchmark]: BuchiAutomizer took 4168.04ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 73.1MB in the beginning and 84.5MB in the end (delta: -11.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-12-06 22:35:38,317 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 83.5MB in the end (delta: 987.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:35:38,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 98.1MB in the beginning and 98.0MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.99ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 87.8MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.60ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.70ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 84.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 231.22ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 73.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4168.04ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 73.1MB in the beginning and 84.5MB in the end (delta: -11.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 83.5MB in the end (delta: 987.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y_ref][y_ref] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 34 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital243 mio100 ax107 hnf100 lsp90 ukn85 mio100 lsp25 div100 bol100 ite100 ukn100 eq177 hnf89 smp96 dnf135 smp79 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 6 VariablesLoop: 5 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 22:35:38,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f0b08-b536-426c-99d6-2c5c5cd6c833/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE