./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC --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 cb5770b8d32c05b82025135c2b222cf31b0a4100 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:21:05,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:05,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:05,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:05,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:05,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:05,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:05,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:05,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:05,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:05,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:05,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:05,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:05,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:05,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:05,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:05,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:05,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:05,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:05,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:05,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:05,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:05,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:05,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:05,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:05,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:05,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:05,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:05,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:05,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:05,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:05,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:05,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:05,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:05,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:05,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:05,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:05,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:05,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:05,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:05,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:05,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:21:05,139 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:05,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:05,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:05,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:05,142 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:05,142 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:21:05,143 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:21:05,143 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:21:05,144 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:21:05,144 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:21:05,144 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:21:05,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:05,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:21:05,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:05,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:05,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:21:05,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:21:05,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:21:05,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:05,147 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:21:05,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:05,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:21:05,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:05,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:05,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:05,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:05,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:05,150 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:21:05,150 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_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb5770b8d32c05b82025135c2b222cf31b0a4100 [2021-10-11 00:21:05,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:05,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:05,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:05,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:05,402 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:05,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-memory-alloca/HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i [2021-10-11 00:21:05,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/data/6d381e9f5/87bde30e77b84bafa43bd268f05f0e79/FLAGc8cdffde1 [2021-10-11 00:21:05,959 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:05,959 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/sv-benchmarks/c/termination-memory-alloca/HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i [2021-10-11 00:21:05,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/data/6d381e9f5/87bde30e77b84bafa43bd268f05f0e79/FLAGc8cdffde1 [2021-10-11 00:21:06,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/data/6d381e9f5/87bde30e77b84bafa43bd268f05f0e79 [2021-10-11 00:21:06,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:06,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:06,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:06,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:06,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:06,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780ab82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06, skipping insertion in model container [2021-10-11 00:21:06,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:06,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:06,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:06,688 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:06,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:06,779 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:06,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06 WrapperNode [2021-10-11 00:21:06,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:06,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:06,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:06,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:06,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:06,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:06,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:06,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:06,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... [2021-10-11 00:21:06,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:06,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:06,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:06,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:06,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:21:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:21:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:21:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:21:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:06,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:07,477 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:07,478 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 00:21:07,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:07 BoogieIcfgContainer [2021-10-11 00:21:07,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:07,481 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:21:07,481 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:21:07,484 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:21:07,485 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:07,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:21:06" (1/3) ... [2021-10-11 00:21:07,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a849c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:21:07, skipping insertion in model container [2021-10-11 00:21:07,487 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:07,488 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:06" (2/3) ... [2021-10-11 00:21:07,488 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a849c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:21:07, skipping insertion in model container [2021-10-11 00:21:07,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:07,488 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:07" (3/3) ... [2021-10-11 00:21:07,490 INFO L389 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i [2021-10-11 00:21:07,535 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:21:07,535 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:21:07,536 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:21:07,536 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:07,536 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:07,536 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:21:07,536 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:07,537 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:21:07,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2021-10-11 00:21:07,568 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2021-10-11 00:21:07,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:07,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:07,574 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:21:07,574 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:21:07,574 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:21:07,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2021-10-11 00:21:07,577 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2021-10-11 00:21:07,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:07,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:07,581 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:21:07,581 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:21:07,588 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 14#L-1true havoc main_#res;havoc main_#t~nondet21; 8#L578true assume 0 != main_#t~nondet21;havoc main_#t~nondet21;f_#in~d := 1;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~malloc6.base, f_#t~malloc6.offset, f_#t~mem7, f_#t~mem10, f_#t~mem8, f_#t~mem9, f_#t~nondet14, f_#t~mem15, f_#t~mem16, f_#t~nondet17, f_#t~mem18, f_#t~mem19, f_#t~mem20, f_#t~mem11, f_#t~mem12, f_#t~short13, f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, f_~x~0.base, f_~x~0.offset, f_~y~0.base, f_~y~0.offset, f_~k~0.base, f_~k~0.offset, f_~z~0.base, f_~z~0.offset;f_~d := f_#in~d;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~d_ref~0.base, f_~d_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~x~0.base, f_~x~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~y~0.base, f_~y~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~k~0.base, f_~k~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call f_#t~malloc6.base, f_#t~malloc6.offset := #Ultimate.allocOnStack(4);f_~z~0.base, f_~z~0.offset := f_#t~malloc6.base, f_#t~malloc6.offset;call write~int(f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(1, f_~x~0.base, f_~x~0.offset, 4);call write~int(1, f_~y~0.base, f_~y~0.offset, 4);call write~int(1, f_~k~0.base, f_~k~0.offset, 4);call write~int(1, f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem7 := read~int(f_~k~0.base, f_~k~0.offset, 4); 3#L558true assume !(f_#t~mem7 > 1073741823);havoc f_#t~mem7; 23#L562-2true [2021-10-11 00:21:07,589 INFO L796 eck$LassoCheckResult]: Loop: 23#L562-2true call f_#t~mem8 := read~int(f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem9 := read~int(f_~k~0.base, f_~k~0.offset, 4); 18#L562true assume !!(f_#t~mem8 < f_#t~mem9);havoc f_#t~mem9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~z~0.base, f_~z~0.offset, 4);call write~int(2 * f_#t~mem10, f_~z~0.base, f_~z~0.offset, 4);havoc f_#t~mem10; 23#L562-2true [2021-10-11 00:21:07,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:07,602 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2021-10-11 00:21:07,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:07,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669895317] [2021-10-11 00:21:07,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:07,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:07,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:07,965 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:07,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:07,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1446, now seen corresponding path program 1 times [2021-10-11 00:21:07,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:07,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264350561] [2021-10-11 00:21:07,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:07,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,006 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:08,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:08,008 INFO L82 PathProgramCache]: Analyzing trace with hash 889509773, now seen corresponding path program 1 times [2021-10-11 00:21:08,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:08,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114411350] [2021-10-11 00:21:08,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:08,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:08,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114411350] [2021-10-11 00:21:08,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:08,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:21:08,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573867128] [2021-10-11 00:21:08,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:08,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:21:08,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:08,388 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2021-10-11 00:21:08,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:08,542 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2021-10-11 00:21:08,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:21:08,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2021-10-11 00:21:08,550 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:08,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 29 states and 38 transitions. [2021-10-11 00:21:08,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-11 00:21:08,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-11 00:21:08,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2021-10-11 00:21:08,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:21:08,560 INFO L692 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-10-11 00:21:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2021-10-11 00:21:08,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2021-10-11 00:21:08,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 00:21:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-10-11 00:21:08,586 INFO L715 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-10-11 00:21:08,587 INFO L595 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-10-11 00:21:08,587 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:21:08,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2021-10-11 00:21:08,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:08,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:08,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:08,588 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:21:08,588 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:21:08,589 INFO L794 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 92#L-1 havoc main_#res;havoc main_#t~nondet21; 85#L578 assume 0 != main_#t~nondet21;havoc main_#t~nondet21;f_#in~d := 1;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~malloc6.base, f_#t~malloc6.offset, f_#t~mem7, f_#t~mem10, f_#t~mem8, f_#t~mem9, f_#t~nondet14, f_#t~mem15, f_#t~mem16, f_#t~nondet17, f_#t~mem18, f_#t~mem19, f_#t~mem20, f_#t~mem11, f_#t~mem12, f_#t~short13, f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, f_~x~0.base, f_~x~0.offset, f_~y~0.base, f_~y~0.offset, f_~k~0.base, f_~k~0.offset, f_~z~0.base, f_~z~0.offset;f_~d := f_#in~d;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~d_ref~0.base, f_~d_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~x~0.base, f_~x~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~y~0.base, f_~y~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~k~0.base, f_~k~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call f_#t~malloc6.base, f_#t~malloc6.offset := #Ultimate.allocOnStack(4);f_~z~0.base, f_~z~0.offset := f_#t~malloc6.base, f_#t~malloc6.offset;call write~int(f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(1, f_~x~0.base, f_~x~0.offset, 4);call write~int(1, f_~y~0.base, f_~y~0.offset, 4);call write~int(1, f_~k~0.base, f_~k~0.offset, 4);call write~int(1, f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem7 := read~int(f_~k~0.base, f_~k~0.offset, 4); 78#L558 assume !(f_#t~mem7 > 1073741823);havoc f_#t~mem7; 79#L562-2 call f_#t~mem8 := read~int(f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem9 := read~int(f_~k~0.base, f_~k~0.offset, 4); 94#L562 assume !(f_#t~mem8 < f_#t~mem9);havoc f_#t~mem9;havoc f_#t~mem8; 81#L567-2 [2021-10-11 00:21:08,589 INFO L796 eck$LassoCheckResult]: Loop: 81#L567-2 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 89#L566 assume !f_#t~short13; 90#L566-2 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 86#L567 assume !(0 != f_#t~nondet14);havoc f_#t~nondet14;call f_#t~mem19 := read~int(f_~y~0.base, f_~y~0.offset, 4);call f_#t~mem20 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem19 - f_#t~mem20, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~mem19;havoc f_#t~mem20; 81#L567-2 [2021-10-11 00:21:08,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:08,590 INFO L82 PathProgramCache]: Analyzing trace with hash 889509771, now seen corresponding path program 1 times [2021-10-11 00:21:08,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:08,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116662861] [2021-10-11 00:21:08,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,616 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,647 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:08,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:08,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1759853, now seen corresponding path program 1 times [2021-10-11 00:21:08,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:08,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366881151] [2021-10-11 00:21:08,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:08,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366881151] [2021-10-11 00:21:08,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:08,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:21:08,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762297927] [2021-10-11 00:21:08,672 INFO L811 eck$LassoCheckResult]: loop already infeasible [2021-10-11 00:21:08,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:08,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:08,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:08,673 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand 3 states. [2021-10-11 00:21:08,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:08,712 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-10-11 00:21:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:08,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2021-10-11 00:21:08,729 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:08,732 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 19 states and 22 transitions. [2021-10-11 00:21:08,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-11 00:21:08,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-11 00:21:08,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2021-10-11 00:21:08,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:21:08,739 INFO L692 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-11 00:21:08,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2021-10-11 00:21:08,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-11 00:21:08,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 00:21:08,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-11 00:21:08,742 INFO L715 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-11 00:21:08,742 INFO L595 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-11 00:21:08,742 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:21:08,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions. [2021-10-11 00:21:08,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:08,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:08,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:08,743 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:21:08,744 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:21:08,744 INFO L794 eck$LassoCheckResult]: Stem: 139#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 137#L-1 havoc main_#res;havoc main_#t~nondet21; 131#L578 assume 0 != main_#t~nondet21;havoc main_#t~nondet21;f_#in~d := 1;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~malloc6.base, f_#t~malloc6.offset, f_#t~mem7, f_#t~mem10, f_#t~mem8, f_#t~mem9, f_#t~nondet14, f_#t~mem15, f_#t~mem16, f_#t~nondet17, f_#t~mem18, f_#t~mem19, f_#t~mem20, f_#t~mem11, f_#t~mem12, f_#t~short13, f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, f_~x~0.base, f_~x~0.offset, f_~y~0.base, f_~y~0.offset, f_~k~0.base, f_~k~0.offset, f_~z~0.base, f_~z~0.offset;f_~d := f_#in~d;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~d_ref~0.base, f_~d_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~x~0.base, f_~x~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~y~0.base, f_~y~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~k~0.base, f_~k~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call f_#t~malloc6.base, f_#t~malloc6.offset := #Ultimate.allocOnStack(4);f_~z~0.base, f_~z~0.offset := f_#t~malloc6.base, f_#t~malloc6.offset;call write~int(f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(1, f_~x~0.base, f_~x~0.offset, 4);call write~int(1, f_~y~0.base, f_~y~0.offset, 4);call write~int(1, f_~k~0.base, f_~k~0.offset, 4);call write~int(1, f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem7 := read~int(f_~k~0.base, f_~k~0.offset, 4); 124#L558 assume !(f_#t~mem7 > 1073741823);havoc f_#t~mem7; 125#L562-2 call f_#t~mem8 := read~int(f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem9 := read~int(f_~k~0.base, f_~k~0.offset, 4); 140#L562 assume !(f_#t~mem8 < f_#t~mem9);havoc f_#t~mem9;havoc f_#t~mem8; 127#L567-2 [2021-10-11 00:21:08,744 INFO L796 eck$LassoCheckResult]: Loop: 127#L567-2 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 135#L566 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 136#L566-2 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 132#L567 assume !(0 != f_#t~nondet14);havoc f_#t~nondet14;call f_#t~mem19 := read~int(f_~y~0.base, f_~y~0.offset, 4);call f_#t~mem20 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem19 - f_#t~mem20, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~mem19;havoc f_#t~mem20; 127#L567-2 [2021-10-11 00:21:08,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:08,745 INFO L82 PathProgramCache]: Analyzing trace with hash 889509771, now seen corresponding path program 2 times [2021-10-11 00:21:08,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:08,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465665139] [2021-10-11 00:21:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,803 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,851 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:08,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:08,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1757931, now seen corresponding path program 1 times [2021-10-11 00:21:08,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:08,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481907438] [2021-10-11 00:21:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,864 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,866 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:08,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:08,867 INFO L82 PathProgramCache]: Analyzing trace with hash -260778635, now seen corresponding path program 1 times [2021-10-11 00:21:08,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:08,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335816149] [2021-10-11 00:21:08,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:08,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:08,918 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:09,058 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-10-11 00:21:10,561 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 159 DAG size of output: 120 [2021-10-11 00:21:11,006 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-10-11 00:21:11,017 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:11,018 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:11,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:11,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:11,019 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:21:11,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:11,019 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:11,019 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:11,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i_Iteration3_Lasso [2021-10-11 00:21:11,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:11,020 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:11,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,805 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94 [2021-10-11 00:21:11,992 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-10-11 00:21:11,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:11,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:12,718 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:12,723 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:12,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:12,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:12,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:12,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:12,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:12,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:12,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:12,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:12,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:12,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:12,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:12,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:12,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:12,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:12,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:12,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:12,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:12,831 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:12,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:12,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:12,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:12,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:12,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:12,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:12,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:12,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:12,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:12,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:12,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:12,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:12,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:12,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:12,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:12,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:12,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:12,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:12,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:12,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:12,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:12,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:12,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:12,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:12,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:13,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:13,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:13,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:13,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,058 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,058 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:13,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:13,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:13,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,148 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:13,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:13,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:13,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:13,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:13,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,414 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:13,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,574 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:13,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,693 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:13,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:13,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:13,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:13,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:13,732 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:13,732 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:13,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:21:13,792 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-11 00:21:13,792 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:13,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:21:13,851 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:13,851 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:21:13,852 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~y~0.base) ULTIMATE.start_f_~y~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~y~0.base) ULTIMATE.start_f_~y~0.offset)_1 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_f_~d_ref~0.base) ULTIMATE.start_f_~d_ref~0.offset)_1 - 1 >= 0] [2021-10-11 00:21:14,164 INFO L297 tatePredicateManager]: 56 out of 59 supporting invariants were superfluous and have been removed [2021-10-11 00:21:14,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:14,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-11 00:21:14,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:14,338 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:14,339 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2021-10-11 00:21:14,346 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:14,392 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:14,442 INFO L348 Elim1Store]: treesize reduction 105, result has 17.3 percent of original size [2021-10-11 00:21:14,443 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 251 treesize of output 36 [2021-10-11 00:21:14,445 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:14,473 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:14,488 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-10-11 00:21:14,495 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:287, output treesize:59 [2021-10-11 00:21:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:14,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 00:21:14,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:14,655 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:14,707 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-11 00:21:14,708 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5 Second operand 6 states. [2021-10-11 00:21:14,829 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5. Second operand 6 states. Result 29 states and 34 transitions. Complement of second has 10 states. [2021-10-11 00:21:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-11 00:21:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 00:21:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2021-10-11 00:21:14,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-11 00:21:14,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:14,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-11 00:21:14,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:14,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2021-10-11 00:21:14,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:14,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-10-11 00:21:14,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:14,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 33 transitions. [2021-10-11 00:21:14,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-10-11 00:21:14,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-11 00:21:14,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2021-10-11 00:21:14,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:21:14,838 INFO L692 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-11 00:21:14,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2021-10-11 00:21:14,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2021-10-11 00:21:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-10-11 00:21:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2021-10-11 00:21:14,844 INFO L715 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-10-11 00:21:14,844 INFO L595 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-10-11 00:21:14,844 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-11 00:21:14,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2021-10-11 00:21:14,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:14,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:14,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:14,847 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:21:14,847 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:21:14,847 INFO L794 eck$LassoCheckResult]: Stem: 495#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 494#L-1 havoc main_#res;havoc main_#t~nondet21; 481#L578 assume !(0 != main_#t~nondet21);havoc main_#t~nondet21;f_#in~d := 2;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~malloc6.base, f_#t~malloc6.offset, f_#t~mem7, f_#t~mem10, f_#t~mem8, f_#t~mem9, f_#t~nondet14, f_#t~mem15, f_#t~mem16, f_#t~nondet17, f_#t~mem18, f_#t~mem19, f_#t~mem20, f_#t~mem11, f_#t~mem12, f_#t~short13, f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, f_~x~0.base, f_~x~0.offset, f_~y~0.base, f_~y~0.offset, f_~k~0.base, f_~k~0.offset, f_~z~0.base, f_~z~0.offset;f_~d := f_#in~d;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~d_ref~0.base, f_~d_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~x~0.base, f_~x~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~y~0.base, f_~y~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~k~0.base, f_~k~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call f_#t~malloc6.base, f_#t~malloc6.offset := #Ultimate.allocOnStack(4);f_~z~0.base, f_~z~0.offset := f_#t~malloc6.base, f_#t~malloc6.offset;call write~int(f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(1, f_~x~0.base, f_~x~0.offset, 4);call write~int(1, f_~y~0.base, f_~y~0.offset, 4);call write~int(1, f_~k~0.base, f_~k~0.offset, 4);call write~int(1, f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem7 := read~int(f_~k~0.base, f_~k~0.offset, 4); 478#L558-1 assume !(f_#t~mem7 > 1073741823);havoc f_#t~mem7; 479#L562-5 call f_#t~mem8 := read~int(f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem9 := read~int(f_~k~0.base, f_~k~0.offset, 4); 480#L562-3 assume !(f_#t~mem8 < f_#t~mem9);havoc f_#t~mem9;havoc f_#t~mem8; 486#L567-5 [2021-10-11 00:21:14,847 INFO L796 eck$LassoCheckResult]: Loop: 486#L567-5 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 498#L566-5 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 499#L566-7 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 493#L567-3 assume !(0 != f_#t~nondet14);havoc f_#t~nondet14;call f_#t~mem19 := read~int(f_~y~0.base, f_~y~0.offset, 4);call f_#t~mem20 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem19 - f_#t~mem20, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~mem19;havoc f_#t~mem20; 486#L567-5 [2021-10-11 00:21:14,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:14,848 INFO L82 PathProgramCache]: Analyzing trace with hash 890987403, now seen corresponding path program 1 times [2021-10-11 00:21:14,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:14,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315755022] [2021-10-11 00:21:14,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:14,894 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:14,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:14,934 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:14,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:14,935 INFO L82 PathProgramCache]: Analyzing trace with hash 3235563, now seen corresponding path program 1 times [2021-10-11 00:21:14,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:14,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238824798] [2021-10-11 00:21:14,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:14,947 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:14,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:14,960 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:14,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:14,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1434718859, now seen corresponding path program 1 times [2021-10-11 00:21:14,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:14,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578310346] [2021-10-11 00:21:14,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:14,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:15,036 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:15,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:15,149 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-10-11 00:21:16,869 WARN L197 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 159 DAG size of output: 129 [2021-10-11 00:21:17,571 WARN L197 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-10-11 00:21:17,575 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:17,575 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:17,575 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:17,575 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:17,575 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:21:17,575 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:17,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:17,576 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:17,576 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-2010SAS-Fig1-alloca.i_Iteration4_Lasso [2021-10-11 00:21:17,576 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:17,576 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:17,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:17,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,513 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 97 [2021-10-11 00:21:18,689 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2021-10-11 00:21:18,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:18,989 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-10-11 00:21:19,495 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:19,495 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:19,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:19,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:19,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,587 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:19,587 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:19,590 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:19,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:19,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:19,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:19,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:19,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:19,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:19,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:19,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,821 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:19,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,844 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:19,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,879 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:19,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:19,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:19,925 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:19,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:19,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:19,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:19,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:19,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:19,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:19,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:19,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:19,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:19,988 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:21:20,004 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-11 00:21:20,004 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:20,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:20,046 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-11 00:21:20,046 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:21:20,046 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~y~0.base) ULTIMATE.start_f_~y~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~y~0.base) ULTIMATE.start_f_~y~0.offset)_2 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_f_~d_ref~0.base) ULTIMATE.start_f_~d_ref~0.offset)_2 - 2 >= 0] [2021-10-11 00:21:20,368 INFO L297 tatePredicateManager]: 61 out of 64 supporting invariants were superfluous and have been removed [2021-10-11 00:21:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:20,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-11 00:21:20,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:20,572 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:20,573 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 101 [2021-10-11 00:21:20,580 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:20,626 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:20,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:20,648 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 36 [2021-10-11 00:21:20,650 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:20,688 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:20,703 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-10-11 00:21:20,703 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:309, output treesize:80 [2021-10-11 00:21:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:20,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 00:21:20,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:20,869 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:20,924 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-11 00:21:20,924 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 8 Second operand 6 states. [2021-10-11 00:21:21,134 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 8. Second operand 6 states. Result 37 states and 44 transitions. Complement of second has 10 states. [2021-10-11 00:21:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-11 00:21:21,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 00:21:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2021-10-11 00:21:21,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-11 00:21:21,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:21,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-11 00:21:21,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:21,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2021-10-11 00:21:21,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:21,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 44 transitions. [2021-10-11 00:21:21,139 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:21,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 43 transitions. [2021-10-11 00:21:21,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-11 00:21:21,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-10-11 00:21:21,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 43 transitions. [2021-10-11 00:21:21,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:21:21,140 INFO L692 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-11 00:21:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 43 transitions. [2021-10-11 00:21:21,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-10-11 00:21:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-10-11 00:21:21,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-10-11 00:21:21,143 INFO L715 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-10-11 00:21:21,144 INFO L595 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-10-11 00:21:21,144 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-11 00:21:21,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 42 transitions. [2021-10-11 00:21:21,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:21,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:21,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:21,146 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:21,146 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:21:21,146 INFO L794 eck$LassoCheckResult]: Stem: 882#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 881#L-1 havoc main_#res;havoc main_#t~nondet21; 867#L578 assume 0 != main_#t~nondet21;havoc main_#t~nondet21;f_#in~d := 1;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~malloc6.base, f_#t~malloc6.offset, f_#t~mem7, f_#t~mem10, f_#t~mem8, f_#t~mem9, f_#t~nondet14, f_#t~mem15, f_#t~mem16, f_#t~nondet17, f_#t~mem18, f_#t~mem19, f_#t~mem20, f_#t~mem11, f_#t~mem12, f_#t~short13, f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, f_~x~0.base, f_~x~0.offset, f_~y~0.base, f_~y~0.offset, f_~k~0.base, f_~k~0.offset, f_~z~0.base, f_~z~0.offset;f_~d := f_#in~d;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~d_ref~0.base, f_~d_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~x~0.base, f_~x~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~y~0.base, f_~y~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~k~0.base, f_~k~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call f_#t~malloc6.base, f_#t~malloc6.offset := #Ultimate.allocOnStack(4);f_~z~0.base, f_~z~0.offset := f_#t~malloc6.base, f_#t~malloc6.offset;call write~int(f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(1, f_~x~0.base, f_~x~0.offset, 4);call write~int(1, f_~y~0.base, f_~y~0.offset, 4);call write~int(1, f_~k~0.base, f_~k~0.offset, 4);call write~int(1, f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem7 := read~int(f_~k~0.base, f_~k~0.offset, 4); 860#L558 assume !(f_#t~mem7 > 1073741823);havoc f_#t~mem7; 861#L562-2 call f_#t~mem8 := read~int(f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem9 := read~int(f_~k~0.base, f_~k~0.offset, 4); 886#L562 assume !(f_#t~mem8 < f_#t~mem9);havoc f_#t~mem9;havoc f_#t~mem8; 887#L567-2 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 873#L566 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 874#L566-2 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 868#L567 assume 0 != f_#t~nondet14;havoc f_#t~nondet14; 862#L568 [2021-10-11 00:21:21,146 INFO L796 eck$LassoCheckResult]: Loop: 862#L568 call f_#t~mem15 := read~int(f_~x~0.base, f_~x~0.offset, 4);call f_#t~mem16 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem15 - f_#t~mem16, f_~x~0.base, f_~x~0.offset, 4);havoc f_#t~mem15;havoc f_#t~mem16;call write~int(f_#t~nondet17, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~nondet17;call f_#t~mem18 := read~int(f_~z~0.base, f_~z~0.offset, 4);call write~int(f_#t~mem18 - 1, f_~z~0.base, f_~z~0.offset, 4);havoc f_#t~mem18; 863#L567-2 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 877#L566 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 892#L566-2 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 891#L567 assume 0 != f_#t~nondet14;havoc f_#t~nondet14; 862#L568 [2021-10-11 00:21:21,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:21,147 INFO L82 PathProgramCache]: Analyzing trace with hash -260778639, now seen corresponding path program 1 times [2021-10-11 00:21:21,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:21,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542153298] [2021-10-11 00:21:21,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:21,167 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:21,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:21,188 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:21,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:21,189 INFO L82 PathProgramCache]: Analyzing trace with hash 69174960, now seen corresponding path program 1 times [2021-10-11 00:21:21,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:21,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323557902] [2021-10-11 00:21:21,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:21,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:21,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:21,203 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:21,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:21,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1938200384, now seen corresponding path program 1 times [2021-10-11 00:21:21,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:21,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692321284] [2021-10-11 00:21:21,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:21,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692321284] [2021-10-11 00:21:21,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925892637] [2021-10-11 00:21:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:21,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-11 00:21:21,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:21,515 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:21,516 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2021-10-11 00:21:21,518 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:21,577 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:21,622 INFO L348 Elim1Store]: treesize reduction 111, result has 16.5 percent of original size [2021-10-11 00:21:21,622 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 251 treesize of output 36 [2021-10-11 00:21:21,623 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:21,649 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:21,654 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:21:21,655 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:292, output treesize:64 [2021-10-11 00:21:21,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:21,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:21,828 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:21,828 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 142 treesize of output 132 [2021-10-11 00:21:21,837 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:21,877 INFO L625 ElimStorePlain]: treesize reduction 53, result has 50.5 percent of original size [2021-10-11 00:21:21,888 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:21:21,888 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:205, output treesize:22 [2021-10-11 00:21:21,914 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:21,918 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:21:21,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:21:21,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:21,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:21:21,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 9 [2021-10-11 00:21:21,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663597100] [2021-10-11 00:21:22,136 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-10-11 00:21:22,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:22,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:21:22,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:21:22,195 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. cyclomatic complexity: 11 Second operand 9 states. [2021-10-11 00:21:22,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:22,386 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2021-10-11 00:21:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:21:22,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 50 transitions. [2021-10-11 00:21:22,388 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:22,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 38 states and 44 transitions. [2021-10-11 00:21:22,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-11 00:21:22,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-11 00:21:22,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 44 transitions. [2021-10-11 00:21:22,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:21:22,389 INFO L692 BuchiCegarLoop]: Abstraction has 38 states and 44 transitions. [2021-10-11 00:21:22,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 44 transitions. [2021-10-11 00:21:22,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2021-10-11 00:21:22,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-10-11 00:21:22,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-10-11 00:21:22,392 INFO L715 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-11 00:21:22,392 INFO L595 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-11 00:21:22,392 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-11 00:21:22,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2021-10-11 00:21:22,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:22,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:22,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:22,394 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:22,394 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:21:22,394 INFO L794 eck$LassoCheckResult]: Stem: 1025#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1024#L-1 havoc main_#res;havoc main_#t~nondet21; 1008#L578 assume !(0 != main_#t~nondet21);havoc main_#t~nondet21;f_#in~d := 2;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~malloc6.base, f_#t~malloc6.offset, f_#t~mem7, f_#t~mem10, f_#t~mem8, f_#t~mem9, f_#t~nondet14, f_#t~mem15, f_#t~mem16, f_#t~nondet17, f_#t~mem18, f_#t~mem19, f_#t~mem20, f_#t~mem11, f_#t~mem12, f_#t~short13, f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, f_~x~0.base, f_~x~0.offset, f_~y~0.base, f_~y~0.offset, f_~k~0.base, f_~k~0.offset, f_~z~0.base, f_~z~0.offset;f_~d := f_#in~d;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~d_ref~0.base, f_~d_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~x~0.base, f_~x~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~y~0.base, f_~y~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~k~0.base, f_~k~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call f_#t~malloc6.base, f_#t~malloc6.offset := #Ultimate.allocOnStack(4);f_~z~0.base, f_~z~0.offset := f_#t~malloc6.base, f_#t~malloc6.offset;call write~int(f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(1, f_~x~0.base, f_~x~0.offset, 4);call write~int(1, f_~y~0.base, f_~y~0.offset, 4);call write~int(1, f_~k~0.base, f_~k~0.offset, 4);call write~int(1, f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem7 := read~int(f_~k~0.base, f_~k~0.offset, 4); 1005#L558-1 assume !(f_#t~mem7 > 1073741823);havoc f_#t~mem7; 1006#L562-5 call f_#t~mem8 := read~int(f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem9 := read~int(f_~k~0.base, f_~k~0.offset, 4); 1007#L562-3 assume !(f_#t~mem8 < f_#t~mem9);havoc f_#t~mem9;havoc f_#t~mem8; 1032#L567-5 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1029#L566-5 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1030#L566-7 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1021#L567-3 assume 0 != f_#t~nondet14;havoc f_#t~nondet14; 1012#L568-1 [2021-10-11 00:21:22,394 INFO L796 eck$LassoCheckResult]: Loop: 1012#L568-1 call f_#t~mem15 := read~int(f_~x~0.base, f_~x~0.offset, 4);call f_#t~mem16 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem15 - f_#t~mem16, f_~x~0.base, f_~x~0.offset, 4);havoc f_#t~mem15;havoc f_#t~mem16;call write~int(f_#t~nondet17, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~nondet17;call f_#t~mem18 := read~int(f_~z~0.base, f_~z~0.offset, 4);call write~int(f_#t~mem18 - 1, f_~z~0.base, f_~z~0.offset, 4);havoc f_#t~mem18; 1013#L567-5 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1027#L566-5 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1035#L566-7 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1033#L567-3 assume 0 != f_#t~nondet14;havoc f_#t~nondet14; 1012#L568-1 [2021-10-11 00:21:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:22,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1434718863, now seen corresponding path program 1 times [2021-10-11 00:21:22,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:22,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266788750] [2021-10-11 00:21:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:22,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:22,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:22,432 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:22,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:22,433 INFO L82 PathProgramCache]: Analyzing trace with hash 114981600, now seen corresponding path program 1 times [2021-10-11 00:21:22,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:22,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286267293] [2021-10-11 00:21:22,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:22,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:22,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:22,445 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:22,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:22,446 INFO L82 PathProgramCache]: Analyzing trace with hash -588680336, now seen corresponding path program 1 times [2021-10-11 00:21:22,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:22,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078471310] [2021-10-11 00:21:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:22,627 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-10-11 00:21:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:22,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078471310] [2021-10-11 00:21:22,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755642319] [2021-10-11 00:21:22,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:22,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-11 00:21:22,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:22,917 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:22,918 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2021-10-11 00:21:22,921 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:22,971 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:22,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,036 INFO L348 Elim1Store]: treesize reduction 35, result has 60.2 percent of original size [2021-10-11 00:21:23,036 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 251 treesize of output 67 [2021-10-11 00:21:23,038 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:23,113 INFO L625 ElimStorePlain]: treesize reduction 24, result has 76.7 percent of original size [2021-10-11 00:21:23,116 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-10-11 00:21:23,117 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,119 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:21:23,119 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:292, output treesize:76 [2021-10-11 00:21:23,121 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,166 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,210 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,248 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,280 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,320 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,348 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,377 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,422 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,429 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-10-11 00:21:23,441 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-10-11 00:21:23,450 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2021-10-11 00:21:23,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-11 00:21:23,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,589 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:23,590 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 142 treesize of output 93 [2021-10-11 00:21:23,605 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:23,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,718 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:23,719 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 149 treesize of output 147 [2021-10-11 00:21:23,732 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:23,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:23,767 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:23,768 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 75 [2021-10-11 00:21:23,772 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:23,967 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2021-10-11 00:21:23,967 INFO L625 ElimStorePlain]: treesize reduction 78, result has 70.9 percent of original size [2021-10-11 00:21:23,975 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-10-11 00:21:23,977 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-10-11 00:21:23,979 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-10-11 00:21:24,022 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-10-11 00:21:24,024 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-10-11 00:21:24,028 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-10-11 00:21:24,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,044 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 3 xjuncts. [2021-10-11 00:21:24,044 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:647, output treesize:101 [2021-10-11 00:21:24,048 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,049 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,872 WARN L197 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-10-11 00:21:24,884 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-10-11 00:21:24,885 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,897 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,898 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,903 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:21:24,913 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,922 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,925 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,930 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,932 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:21:24,942 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,943 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,945 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,947 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,948 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:21:24,953 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:24,954 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,954 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:21:24,955 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,958 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,959 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:24,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:21:24,962 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:21:24,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:24,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:21:24,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 9 [2021-10-11 00:21:24,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63380476] [2021-10-11 00:21:25,164 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-10-11 00:21:25,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:25,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:21:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:21:25,232 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. cyclomatic complexity: 10 Second operand 9 states. [2021-10-11 00:21:26,513 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2021-10-11 00:21:27,599 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-10-11 00:21:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:27,662 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2021-10-11 00:21:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:21:27,663 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 72 transitions. [2021-10-11 00:21:27,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:27,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 49 states and 54 transitions. [2021-10-11 00:21:27,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-11 00:21:27,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-11 00:21:27,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 54 transitions. [2021-10-11 00:21:27,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:21:27,669 INFO L692 BuchiCegarLoop]: Abstraction has 49 states and 54 transitions. [2021-10-11 00:21:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 54 transitions. [2021-10-11 00:21:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-10-11 00:21:27,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-10-11 00:21:27,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2021-10-11 00:21:27,672 INFO L715 BuchiCegarLoop]: Abstraction has 43 states and 48 transitions. [2021-10-11 00:21:27,672 INFO L595 BuchiCegarLoop]: Abstraction has 43 states and 48 transitions. [2021-10-11 00:21:27,672 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-11 00:21:27,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 48 transitions. [2021-10-11 00:21:27,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-11 00:21:27,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:27,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:27,674 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:27,674 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:21:27,674 INFO L794 eck$LassoCheckResult]: Stem: 1191#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1190#L-1 havoc main_#res;havoc main_#t~nondet21; 1174#L578 assume 0 != main_#t~nondet21;havoc main_#t~nondet21;f_#in~d := 1;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~malloc6.base, f_#t~malloc6.offset, f_#t~mem7, f_#t~mem10, f_#t~mem8, f_#t~mem9, f_#t~nondet14, f_#t~mem15, f_#t~mem16, f_#t~nondet17, f_#t~mem18, f_#t~mem19, f_#t~mem20, f_#t~mem11, f_#t~mem12, f_#t~short13, f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, f_~x~0.base, f_~x~0.offset, f_~y~0.base, f_~y~0.offset, f_~k~0.base, f_~k~0.offset, f_~z~0.base, f_~z~0.offset;f_~d := f_#in~d;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~d_ref~0.base, f_~d_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~x~0.base, f_~x~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~y~0.base, f_~y~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~k~0.base, f_~k~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call f_#t~malloc6.base, f_#t~malloc6.offset := #Ultimate.allocOnStack(4);f_~z~0.base, f_~z~0.offset := f_#t~malloc6.base, f_#t~malloc6.offset;call write~int(f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(1, f_~x~0.base, f_~x~0.offset, 4);call write~int(1, f_~y~0.base, f_~y~0.offset, 4);call write~int(1, f_~k~0.base, f_~k~0.offset, 4);call write~int(1, f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem7 := read~int(f_~k~0.base, f_~k~0.offset, 4); 1167#L558 assume !(f_#t~mem7 > 1073741823);havoc f_#t~mem7; 1168#L562-2 call f_#t~mem8 := read~int(f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem9 := read~int(f_~k~0.base, f_~k~0.offset, 4); 1196#L562 assume !(f_#t~mem8 < f_#t~mem9);havoc f_#t~mem9;havoc f_#t~mem8; 1184#L567-2 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1185#L566 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1209#L566-2 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1208#L567 assume !(0 != f_#t~nondet14);havoc f_#t~nondet14;call f_#t~mem19 := read~int(f_~y~0.base, f_~y~0.offset, 4);call f_#t~mem20 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem19 - f_#t~mem20, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~mem19;havoc f_#t~mem20; 1186#L567-2 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1182#L566 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1183#L566-2 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1176#L567 assume !(0 != f_#t~nondet14);havoc f_#t~nondet14;call f_#t~mem19 := read~int(f_~y~0.base, f_~y~0.offset, 4);call f_#t~mem20 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem19 - f_#t~mem20, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~mem19;havoc f_#t~mem20; 1177#L567-2 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1180#L566 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1181#L566-2 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1175#L567 assume 0 != f_#t~nondet14;havoc f_#t~nondet14; 1169#L568 [2021-10-11 00:21:27,674 INFO L796 eck$LassoCheckResult]: Loop: 1169#L568 call f_#t~mem15 := read~int(f_~x~0.base, f_~x~0.offset, 4);call f_#t~mem16 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem15 - f_#t~mem16, f_~x~0.base, f_~x~0.offset, 4);havoc f_#t~mem15;havoc f_#t~mem16;call write~int(f_#t~nondet17, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~nondet17;call f_#t~mem18 := read~int(f_~z~0.base, f_~z~0.offset, 4);call write~int(f_#t~mem18 - 1, f_~z~0.base, f_~z~0.offset, 4);havoc f_#t~mem18; 1170#L567-2 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1207#L566 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1206#L566-2 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1205#L567 assume 0 != f_#t~nondet14;havoc f_#t~nondet14; 1169#L568 [2021-10-11 00:21:27,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:27,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1529889349, now seen corresponding path program 1 times [2021-10-11 00:21:27,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:27,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907011768] [2021-10-11 00:21:27,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:21:27,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907011768] [2021-10-11 00:21:27,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571844142] [2021-10-11 00:21:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:27,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-11 00:21:27,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:27,937 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-10-11 00:21:27,939 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:27,969 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:28,026 INFO L348 Elim1Store]: treesize reduction 166, result has 14.9 percent of original size [2021-10-11 00:21:28,026 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 251 treesize of output 36 [2021-10-11 00:21:28,032 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:28,051 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:28,053 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-10-11 00:21:28,053 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:275, output treesize:46 [2021-10-11 00:21:28,157 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:28,158 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 71 [2021-10-11 00:21:28,160 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:28,180 INFO L625 ElimStorePlain]: treesize reduction 20, result has 59.2 percent of original size [2021-10-11 00:21:28,182 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:21:28,182 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:52, output treesize:18 [2021-10-11 00:21:28,207 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:28,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:28,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:21:28,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:21:28,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:21:28,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2021-10-11 00:21:28,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187656837] [2021-10-11 00:21:28,229 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:21:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash 69174960, now seen corresponding path program 2 times [2021-10-11 00:21:28,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:28,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110394586] [2021-10-11 00:21:28,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:28,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:28,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:28,243 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:28,405 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-10-11 00:21:28,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:28,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 00:21:28,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:21:28,458 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. cyclomatic complexity: 9 Second operand 10 states. [2021-10-11 00:21:28,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:28,735 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2021-10-11 00:21:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:21:28,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 35 transitions. [2021-10-11 00:21:28,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:21:28,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 23 states and 25 transitions. [2021-10-11 00:21:28,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-11 00:21:28,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-11 00:21:28,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 25 transitions. [2021-10-11 00:21:28,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:21:28,737 INFO L692 BuchiCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-10-11 00:21:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 25 transitions. [2021-10-11 00:21:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-11 00:21:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 00:21:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-10-11 00:21:28,739 INFO L715 BuchiCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-10-11 00:21:28,739 INFO L595 BuchiCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-10-11 00:21:28,739 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-11 00:21:28,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 25 transitions. [2021-10-11 00:21:28,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:21:28,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:28,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:28,740 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:28,740 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:21:28,741 INFO L794 eck$LassoCheckResult]: Stem: 1319#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1317#L-1 havoc main_#res;havoc main_#t~nondet21; 1318#L578 assume !(0 != main_#t~nondet21);havoc main_#t~nondet21;f_#in~d := 2;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~malloc6.base, f_#t~malloc6.offset, f_#t~mem7, f_#t~mem10, f_#t~mem8, f_#t~mem9, f_#t~nondet14, f_#t~mem15, f_#t~mem16, f_#t~nondet17, f_#t~mem18, f_#t~mem19, f_#t~mem20, f_#t~mem11, f_#t~mem12, f_#t~short13, f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, f_~x~0.base, f_~x~0.offset, f_~y~0.base, f_~y~0.offset, f_~k~0.base, f_~k~0.offset, f_~z~0.base, f_~z~0.offset;f_~d := f_#in~d;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~d_ref~0.base, f_~d_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~x~0.base, f_~x~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~y~0.base, f_~y~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~k~0.base, f_~k~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call f_#t~malloc6.base, f_#t~malloc6.offset := #Ultimate.allocOnStack(4);f_~z~0.base, f_~z~0.offset := f_#t~malloc6.base, f_#t~malloc6.offset;call write~int(f_~d, f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(1, f_~x~0.base, f_~x~0.offset, 4);call write~int(1, f_~y~0.base, f_~y~0.offset, 4);call write~int(1, f_~k~0.base, f_~k~0.offset, 4);call write~int(1, f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem7 := read~int(f_~k~0.base, f_~k~0.offset, 4); 1320#L558-1 assume !(f_#t~mem7 > 1073741823);havoc f_#t~mem7; 1321#L562-5 call f_#t~mem8 := read~int(f_~z~0.base, f_~z~0.offset, 4);call f_#t~mem9 := read~int(f_~k~0.base, f_~k~0.offset, 4); 1322#L562-3 assume !(f_#t~mem8 < f_#t~mem9);havoc f_#t~mem9;havoc f_#t~mem8; 1323#L567-5 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1324#L566-5 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1329#L566-7 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1315#L567-3 assume !(0 != f_#t~nondet14);havoc f_#t~nondet14;call f_#t~mem19 := read~int(f_~y~0.base, f_~y~0.offset, 4);call f_#t~mem20 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem19 - f_#t~mem20, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~mem19;havoc f_#t~mem20; 1316#L567-5 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1325#L566-5 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1335#L566-7 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1334#L567-3 assume !(0 != f_#t~nondet14);havoc f_#t~nondet14;call f_#t~mem19 := read~int(f_~y~0.base, f_~y~0.offset, 4);call f_#t~mem20 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem19 - f_#t~mem20, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~mem19;havoc f_#t~mem20; 1333#L567-5 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1332#L566-5 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1330#L566-7 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1313#L567-3 assume 0 != f_#t~nondet14;havoc f_#t~nondet14; 1314#L568-1 [2021-10-11 00:21:28,741 INFO L796 eck$LassoCheckResult]: Loop: 1314#L568-1 call f_#t~mem15 := read~int(f_~x~0.base, f_~x~0.offset, 4);call f_#t~mem16 := read~int(f_~d_ref~0.base, f_~d_ref~0.offset, 4);call write~int(f_#t~mem15 - f_#t~mem16, f_~x~0.base, f_~x~0.offset, 4);havoc f_#t~mem15;havoc f_#t~mem16;call write~int(f_#t~nondet17, f_~y~0.base, f_~y~0.offset, 4);havoc f_#t~nondet17;call f_#t~mem18 := read~int(f_~z~0.base, f_~z~0.offset, 4);call write~int(f_#t~mem18 - 1, f_~z~0.base, f_~z~0.offset, 4);havoc f_#t~mem18; 1326#L567-5 call f_#t~mem11 := read~int(f_~x~0.base, f_~x~0.offset, 4);f_#t~short13 := f_#t~mem11 > 0; 1327#L566-5 assume f_#t~short13;call f_#t~mem12 := read~int(f_~y~0.base, f_~y~0.offset, 4);f_#t~short13 := f_#t~mem12 > 0; 1328#L566-7 assume !!f_#t~short13;havoc f_#t~mem12;havoc f_#t~mem11;havoc f_#t~short13; 1331#L567-3 assume 0 != f_#t~nondet14;havoc f_#t~nondet14; 1314#L568-1 [2021-10-11 00:21:28,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:28,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1118204485, now seen corresponding path program 1 times [2021-10-11 00:21:28,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:28,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213497253] [2021-10-11 00:21:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:21:28,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213497253] [2021-10-11 00:21:28,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661608516] [2021-10-11 00:21:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8da7ac52-f886-4a26-9df0-83cc34335941/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:28,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-11 00:21:28,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:28,987 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:28,988 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 66 [2021-10-11 00:21:28,990 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:29,039 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:29,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:21:29,069 INFO L348 Elim1Store]: treesize reduction 24, result has 56.4 percent of original size [2021-10-11 00:21:29,070 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 251 treesize of output 52 [2021-10-11 00:21:29,071 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:29,124 INFO L625 ElimStorePlain]: treesize reduction 20, result has 78.5 percent of original size [2021-10-11 00:21:29,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:29,133 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-10-11 00:21:29,134 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:300, output treesize:70 [2021-10-11 00:21:29,364 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:21:29,366 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-10-11 00:21:29,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-11 00:21:29,399 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 41 [2021-10-11 00:21:29,400 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:29,463 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:21:29,463 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 139 [2021-10-11 00:21:29,468 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:21:29,628 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2021-10-11 00:21:29,629 INFO L625 ElimStorePlain]: treesize reduction 62, result has 67.5 percent of original size [2021-10-11 00:21:29,637 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:29,640 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:29,641 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-10-11 00:21:29,647 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2021-10-11 00:21:29,648 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:175, output treesize:125 [2021-10-11 00:21:29,653 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:29,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:29,657 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-10-11 00:21:29,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:29,727 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-10-11 00:21:29,781 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:21:29,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:21:29,788 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-10-11 00:21:29,983 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-10-11 00:21:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:21:29,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:21:29,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-11 00:21:29,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564622460] [2021-10-11 00:21:29,994 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:21:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:29,994 INFO L82 PathProgramCache]: Analyzing trace with hash 114981600, now seen corresponding path program 2 times [2021-10-11 00:21:29,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:29,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259010032] [2021-10-11 00:21:29,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:30,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:30,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:30,009 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:30,257 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-10-11 00:21:30,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:30,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:21:30,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:21:30,321 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. cyclomatic complexity: 4 Second operand 8 states. [2021-10-11 00:21:30,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:30,382 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-11 00:21:30,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:21:30,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 12 transitions. [2021-10-11 00:21:30,383 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:21:30,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2021-10-11 00:21:30,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:21:30,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:21:30,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:21:30,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:21:30,384 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:30,384 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:30,384 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:30,384 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-11 00:21:30,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:21:30,384 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:21:30,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:21:30,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:21:30 BoogieIcfgContainer [2021-10-11 00:21:30,389 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:21:30,389 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:30,389 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:30,390 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:30,390 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:07" (3/4) ... [2021-10-11 00:21:30,393 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:21:30,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:30,394 INFO L168 Benchmark]: Toolchain (without parser) took 24094.79 ms. Allocated memory was 96.5 MB in the beginning and 239.1 MB in the end (delta: 142.6 MB). Free memory was 63.1 MB in the beginning and 178.6 MB in the end (delta: -115.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,395 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:30,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.45 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 62.9 MB in the beginning and 93.1 MB in the end (delta: -30.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.10 ms. Allocated memory is still 127.9 MB. Free memory was 93.1 MB in the beginning and 90.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,396 INFO L168 Benchmark]: Boogie Preprocessor took 30.33 ms. Allocated memory is still 127.9 MB. Free memory was 90.9 MB in the beginning and 89.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,397 INFO L168 Benchmark]: RCFGBuilder took 621.19 ms. Allocated memory is still 127.9 MB. Free memory was 89.5 MB in the beginning and 64.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,397 INFO L168 Benchmark]: BuchiAutomizer took 22908.23 ms. Allocated memory was 127.9 MB in the beginning and 239.1 MB in the end (delta: 111.1 MB). Free memory was 64.3 MB in the beginning and 178.6 MB in the end (delta: -114.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:30,397 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 239.1 MB. Free memory is still 178.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:30,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 471.45 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 62.9 MB in the beginning and 93.1 MB in the end (delta: -30.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.10 ms. Allocated memory is still 127.9 MB. Free memory was 93.1 MB in the beginning and 90.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.33 ms. Allocated memory is still 127.9 MB. Free memory was 90.9 MB in the beginning and 89.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 621.19 ms. Allocated memory is still 127.9 MB. Free memory was 89.5 MB in the beginning and 64.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 22908.23 ms. Allocated memory was 127.9 MB in the beginning and 239.1 MB in the end (delta: 111.1 MB). Free memory was 64.3 MB in the beginning and 178.6 MB in the end (delta: -114.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.34 ms. Allocated memory is still 239.1 MB. Free memory is still 178.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (6 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 6 locations. 6 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 22.8s and 9 iterations. TraceHistogramMax:3. Analysis of lassos took 18.0s. Construction of modules took 0.7s. Büchi inclusion checks took 3.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 21 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 6. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 123 SDtfs, 107 SDslu, 262 SDs, 0 SdLazy, 389 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital546 mio100 ax103 hnf100 lsp94 ukn44 mio100 lsp37 div100 bol100 ite100 ukn100 eq198 hnf87 smp98 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...