./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer --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 32bit --witnessprinter.graph.data.programhash 170d05f666fe960395aa4fb943b7fdfa4284d519 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:08:23,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:08:23,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:08:23,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:08:23,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:08:23,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:08:23,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:08:23,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:08:23,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:08:23,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:08:23,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:08:23,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:08:23,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:08:23,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:08:23,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:08:23,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:08:23,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:08:23,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:08:23,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:08:23,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:08:23,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:08:23,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:08:23,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:08:23,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:08:23,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:08:23,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:08:23,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:08:23,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:08:23,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:08:23,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:08:23,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:08:23,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:08:23,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:08:23,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:08:23,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:08:23,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:08:23,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:08:23,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:08:23,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:08:23,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:08:23,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:08:23,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 10:08:23,669 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:08:23,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:08:23,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:08:23,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:08:23,670 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:08:23,671 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:08:23,671 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:08:23,671 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:08:23,671 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:08:23,671 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:08:23,671 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:08:23,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:08:23,671 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:08:23,672 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:08:23,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:08:23,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:08:23,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:08:23,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:08:23,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:08:23,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:08:23,672 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:08:23,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:08:23,673 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:08:23,673 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:08:23,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:08:23,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:08:23,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:08:23,673 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:08:23,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:08:23,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:08:23,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:08:23,674 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:08:23,674 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:08:23,674 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 170d05f666fe960395aa4fb943b7fdfa4284d519 [2019-12-07 10:08:23,770 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:08:23,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:08:23,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:08:23,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:08:23,783 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:08:23,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i [2019-12-07 10:08:23,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/data/04b0ef444/2cff663c9c754268aad280d27faecd60/FLAG6c4449f0c [2019-12-07 10:08:24,195 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:08:24,195 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i [2019-12-07 10:08:24,208 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/data/04b0ef444/2cff663c9c754268aad280d27faecd60/FLAG6c4449f0c [2019-12-07 10:08:24,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/data/04b0ef444/2cff663c9c754268aad280d27faecd60 [2019-12-07 10:08:24,223 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:08:24,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:08:24,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:08:24,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:08:24,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:08:24,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c43023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24, skipping insertion in model container [2019-12-07 10:08:24,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:08:24,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:08:24,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:08:24,514 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:08:24,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:08:24,580 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:08:24,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24 WrapperNode [2019-12-07 10:08:24,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:08:24,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:08:24,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:08:24,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:08:24,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:08:24,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:08:24,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:08:24,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:08:24,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... [2019-12-07 10:08:24,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:08:24,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:08:24,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:08:24,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:08:24,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 10:08:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:08:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:08:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:08:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:08:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:08:24,872 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:08:24,872 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 10:08:24,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:24 BoogieIcfgContainer [2019-12-07 10:08:24,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:08:24,874 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:08:24,874 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:08:24,876 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:08:24,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:24,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:08:24" (1/3) ... [2019-12-07 10:08:24,877 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34c4d923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:08:24, skipping insertion in model container [2019-12-07 10:08:24,877 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:24,877 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:24" (2/3) ... [2019-12-07 10:08:24,877 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34c4d923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:08:24, skipping insertion in model container [2019-12-07 10:08:24,877 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:24,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:24" (3/3) ... [2019-12-07 10:08:24,879 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrncat-alloca-2.i [2019-12-07 10:08:24,907 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:08:24,907 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:08:24,907 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:08:24,908 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:08:24,908 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:08:24,908 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:08:24,908 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:08:24,908 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:08:24,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-12-07 10:08:24,931 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2019-12-07 10:08:24,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:24,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:24,935 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:08:24,935 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:24,935 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:08:24,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-12-07 10:08:24,937 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2019-12-07 10:08:24,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:24,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:24,937 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:08:24,937 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:24,942 INFO L794 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 15#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 19#L531true assume !(main_~length1~0 < 1); 24#L531-2true assume !(main_~length2~0 < 1); 14#L534-1true assume !(main_~n~0 < 1); 6#L537-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 20#L544-3true [2019-12-07 10:08:24,942 INFO L796 eck$LassoCheckResult]: Loop: 20#L544-3true assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 17#L544-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 20#L544-3true [2019-12-07 10:08:24,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:24,946 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-12-07 10:08:24,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:24,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557977838] [2019-12-07 10:08:24,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:25,044 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:25,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:25,045 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2019-12-07 10:08:25,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:25,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41668361] [2019-12-07 10:08:25,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:25,057 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:25,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:25,059 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2019-12-07 10:08:25,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:25,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870124907] [2019-12-07 10:08:25,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:25,098 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:25,263 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-12-07 10:08:25,317 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:08:25,318 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:08:25,318 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:08:25,318 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:08:25,318 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:08:25,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:25,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:08:25,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:08:25,319 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration1_Lasso [2019-12-07 10:08:25,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:08:25,319 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:08:25,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:25,658 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:08:25,661 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:25,665 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 [2019-12-07 10:08:25,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:25,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:25,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:25,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:25,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:25,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:25,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:25,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:25,675 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 [2019-12-07 10:08:25,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:25,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:25,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:25,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:25,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:25,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:25,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:25,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:25,682 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 [2019-12-07 10:08:25,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:25,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:25,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:25,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:25,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:25,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:25,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:25,692 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 [2019-12-07 10:08:25,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:25,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:25,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:25,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:25,696 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:25,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:25,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:25,706 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 [2019-12-07 10:08:25,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:25,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:25,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:25,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:25,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:25,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:25,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:25,720 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 [2019-12-07 10:08:25,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:25,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:25,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:25,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:25,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:25,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:25,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:25,736 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 [2019-12-07 10:08:25,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:25,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:25,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:25,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:25,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:25,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:25,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:25,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:25,744 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 [2019-12-07 10:08:25,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:25,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:25,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:25,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:25,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:25,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:25,767 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:08:25,802 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-12-07 10:08:25,802 INFO L444 ModelExtractionUtils]: 14 out of 31 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:25,807 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:08:25,810 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 10:08:25,810 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:08:25,811 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~n~0 >= 0] [2019-12-07 10:08:25,830 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2019-12-07 10:08:25,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:25,879 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 10:08:25,880 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:08:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:25,901 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:08:25,901 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:08:25,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:25,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 10:08:25,926 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 4 states. [2019-12-07 10:08:25,986 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 4 states. Result 61 states and 89 transitions. Complement of second has 8 states. [2019-12-07 10:08:25,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:08:25,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 10:08:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2019-12-07 10:08:25,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 10:08:25,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:25,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 8 letters. Loop has 2 letters. [2019-12-07 10:08:25,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:25,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 6 letters. Loop has 4 letters. [2019-12-07 10:08:25,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:25,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2019-12-07 10:08:25,995 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-12-07 10:08:25,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 18 states and 26 transitions. [2019-12-07 10:08:25,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 10:08:25,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 10:08:25,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2019-12-07 10:08:25,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:08:25,999 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 10:08:26,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2019-12-07 10:08:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 10:08:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 10:08:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2019-12-07 10:08:26,019 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 10:08:26,019 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 10:08:26,019 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:08:26,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2019-12-07 10:08:26,020 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-12-07 10:08:26,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:26,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:26,021 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:26,021 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:26,021 INFO L794 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 182#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 183#L531 assume !(main_~length1~0 < 1); 187#L531-2 assume !(main_~length2~0 < 1); 181#L534-1 assume !(main_~n~0 < 1); 178#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 179#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 188#L544-4 main_~i~1 := 0; 176#L549-3 [2019-12-07 10:08:26,021 INFO L796 eck$LassoCheckResult]: Loop: 176#L549-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 175#L549-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 176#L549-3 [2019-12-07 10:08:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:26,021 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2019-12-07 10:08:26,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:26,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596172068] [2019-12-07 10:08:26,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,050 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:26,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:26,050 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2019-12-07 10:08:26,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:26,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400067844] [2019-12-07 10:08:26,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,059 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:26,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:26,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2019-12-07 10:08:26,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:26,060 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304256864] [2019-12-07 10:08:26,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:26,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:26,106 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304256864] [2019-12-07 10:08:26,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:26,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:08:26,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004329719] [2019-12-07 10:08:26,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:26,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:08:26,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:08:26,132 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-12-07 10:08:26,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:26,171 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2019-12-07 10:08:26,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:08:26,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 37 transitions. [2019-12-07 10:08:26,173 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 12 [2019-12-07 10:08:26,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 37 transitions. [2019-12-07 10:08:26,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-12-07 10:08:26,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-12-07 10:08:26,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 37 transitions. [2019-12-07 10:08:26,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:08:26,175 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-12-07 10:08:26,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 37 transitions. [2019-12-07 10:08:26,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2019-12-07 10:08:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 10:08:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2019-12-07 10:08:26,177 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-12-07 10:08:26,177 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-12-07 10:08:26,178 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:08:26,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2019-12-07 10:08:26,178 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-12-07 10:08:26,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:26,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:26,179 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:26,179 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:26,179 INFO L794 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 239#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 240#L531 assume !(main_~length1~0 < 1); 244#L531-2 assume !(main_~length2~0 < 1); 238#L534-1 assume !(main_~n~0 < 1); 234#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 235#L544-3 assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 241#L544-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 242#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 246#L544-4 main_~i~1 := 0; 232#L549-3 [2019-12-07 10:08:26,179 INFO L796 eck$LassoCheckResult]: Loop: 232#L549-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 231#L549-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 232#L549-3 [2019-12-07 10:08:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:26,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1713550361, now seen corresponding path program 1 times [2019-12-07 10:08:26,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:26,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083621614] [2019-12-07 10:08:26,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,205 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:26,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:26,205 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 2 times [2019-12-07 10:08:26,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:26,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013664058] [2019-12-07 10:08:26,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:26,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:26,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1749424059, now seen corresponding path program 1 times [2019-12-07 10:08:26,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:26,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526575850] [2019-12-07 10:08:26,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:26,238 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:26,396 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2019-12-07 10:08:26,454 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:08:26,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:08:26,455 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:08:26,455 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:08:26,455 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:08:26,455 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:26,455 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:08:26,455 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:08:26,455 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration3_Lasso [2019-12-07 10:08:26,455 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:08:26,455 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:08:26,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:26,801 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:08:26,801 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:26,804 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 [2019-12-07 10:08:26,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:26,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:26,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:26,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:26,812 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 [2019-12-07 10:08:26,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:26,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:26,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:26,815 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:26,820 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 [2019-12-07 10:08:26,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:26,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:26,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:26,831 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 [2019-12-07 10:08:26,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:26,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:26,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:26,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:26,838 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 [2019-12-07 10:08:26,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:26,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:26,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:26,848 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 [2019-12-07 10:08:26,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:26,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:26,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:26,858 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 [2019-12-07 10:08:26,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:26,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:26,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:26,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:26,865 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 [2019-12-07 10:08:26,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:26,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:26,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:26,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:26,872 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 [2019-12-07 10:08:26,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:26,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:26,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:26,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:26,879 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 [2019-12-07 10:08:26,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:26,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:26,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:26,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:26,887 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 [2019-12-07 10:08:26,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:26,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:26,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:26,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:26,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:26,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:26,906 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:08:26,919 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 10:08:26,919 INFO L444 ModelExtractionUtils]: 20 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:26,921 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:08:26,924 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:08:26,924 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:08:26,924 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-12-07 10:08:26,937 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2019-12-07 10:08:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:26,954 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:08:26,954 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:08:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:26,957 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:08:26,958 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:08:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:26,968 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:08:26,968 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 12 Second operand 3 states. [2019-12-07 10:08:26,981 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 28 states and 43 transitions. Complement of second has 6 states. [2019-12-07 10:08:26,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:08:26,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:08:26,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-12-07 10:08:26,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 10 letters. Loop has 2 letters. [2019-12-07 10:08:26,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:26,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2019-12-07 10:08:26,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:26,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 10 letters. Loop has 4 letters. [2019-12-07 10:08:26,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:26,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2019-12-07 10:08:26,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-12-07 10:08:26,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 30 transitions. [2019-12-07 10:08:26,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 10:08:26,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 10:08:26,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2019-12-07 10:08:26,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:08:26,984 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-07 10:08:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2019-12-07 10:08:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-07 10:08:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 10:08:26,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2019-12-07 10:08:26,985 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-07 10:08:26,985 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-07 10:08:26,986 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 10:08:26,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2019-12-07 10:08:26,986 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-12-07 10:08:26,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:26,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:26,986 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:26,986 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:26,987 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 374#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 375#L531 assume !(main_~length1~0 < 1); 379#L531-2 assume !(main_~length2~0 < 1); 373#L534-1 assume !(main_~n~0 < 1); 369#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 370#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 380#L544-4 main_~i~1 := 0; 371#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 372#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 365#L517-3 [2019-12-07 10:08:26,987 INFO L796 eck$LassoCheckResult]: Loop: 365#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 363#L517-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 365#L517-3 [2019-12-07 10:08:26,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:26,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2019-12-07 10:08:26,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:26,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915446618] [2019-12-07 10:08:26,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,007 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:27,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:27,008 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2019-12-07 10:08:27,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:27,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277076040] [2019-12-07 10:08:27,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,012 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:27,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:27,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1696290724, now seen corresponding path program 1 times [2019-12-07 10:08:27,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:27,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291908415] [2019-12-07 10:08:27,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:27,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291908415] [2019-12-07 10:08:27,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:27,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 10:08:27,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017087308] [2019-12-07 10:08:27,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:27,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 10:08:27,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:08:27,227 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand 7 states. [2019-12-07 10:08:27,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:27,441 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-07 10:08:27,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 10:08:27,441 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2019-12-07 10:08:27,442 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 10:08:27,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 42 transitions. [2019-12-07 10:08:27,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2019-12-07 10:08:27,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2019-12-07 10:08:27,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 42 transitions. [2019-12-07 10:08:27,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:08:27,443 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-12-07 10:08:27,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 42 transitions. [2019-12-07 10:08:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2019-12-07 10:08:27,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 10:08:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2019-12-07 10:08:27,446 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-12-07 10:08:27,446 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-12-07 10:08:27,446 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 10:08:27,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2019-12-07 10:08:27,447 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-12-07 10:08:27,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:27,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:27,447 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:27,447 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:27,447 INFO L794 eck$LassoCheckResult]: Stem: 452#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 448#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 449#L531 assume !(main_~length1~0 < 1); 453#L531-2 assume !(main_~length2~0 < 1); 447#L534-1 assume !(main_~n~0 < 1); 440#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 441#L544-3 assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 450#L544-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 451#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 455#L544-4 main_~i~1 := 0; 457#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 444#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 445#L517-3 [2019-12-07 10:08:27,448 INFO L796 eck$LassoCheckResult]: Loop: 445#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 446#L517-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 445#L517-3 [2019-12-07 10:08:27,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:27,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1749424001, now seen corresponding path program 1 times [2019-12-07 10:08:27,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:27,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489976181] [2019-12-07 10:08:27,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,472 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:27,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:27,473 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2019-12-07 10:08:27,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:27,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607704736] [2019-12-07 10:08:27,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,478 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:27,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:27,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1864254086, now seen corresponding path program 1 times [2019-12-07 10:08:27,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:27,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513720510] [2019-12-07 10:08:27,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:27,502 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:27,823 WARN L192 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 114 [2019-12-07 10:08:27,922 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:08:27,922 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:08:27,922 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:08:27,922 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:08:27,922 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:08:27,922 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:27,922 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:08:27,922 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:08:27,922 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration5_Lasso [2019-12-07 10:08:27,922 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:08:27,922 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:08:27,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:27,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:28,117 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-12-07 10:08:28,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:28,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:08:28,354 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-12-07 10:08:28,500 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:08:28,500 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,503 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 [2019-12-07 10:08:28,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,505 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,511 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 [2019-12-07 10:08:28,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,518 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 [2019-12-07 10:08:28,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,527 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 [2019-12-07 10:08:28,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,535 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 [2019-12-07 10:08:28,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,543 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 [2019-12-07 10:08:28,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,550 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 [2019-12-07 10:08:28,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,557 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 [2019-12-07 10:08:28,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,563 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 [2019-12-07 10:08:28,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,566 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,569 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 [2019-12-07 10:08:28,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,574 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,577 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 [2019-12-07 10:08:28,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,583 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 [2019-12-07 10:08:28,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,589 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 [2019-12-07 10:08:28,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/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 [2019-12-07 10:08:28,595 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 [2019-12-07 10:08:28,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,601 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 [2019-12-07 10:08:28,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,608 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 [2019-12-07 10:08:28,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,614 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 [2019-12-07 10:08:28,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,616 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,620 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 [2019-12-07 10:08:28,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,622 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,626 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 [2019-12-07 10:08:28,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,632 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 [2019-12-07 10:08:28,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,638 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 [2019-12-07 10:08:28,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,645 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 [2019-12-07 10:08:28,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,652 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 [2019-12-07 10:08:28,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,658 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 [2019-12-07 10:08:28,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,664 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 [2019-12-07 10:08:28,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,670 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 [2019-12-07 10:08:28,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:08:28,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,675 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 [2019-12-07 10:08:28,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,680 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,684 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 [2019-12-07 10:08:28,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,692 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 [2019-12-07 10:08:28,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,706 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,710 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 [2019-12-07 10:08:28,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,721 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 [2019-12-07 10:08:28,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,730 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 [2019-12-07 10:08:28,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:08:28,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,731 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 10:08:28,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,731 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 10:08:28,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:08:28,733 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,736 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 [2019-12-07 10:08:28,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,744 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 [2019-12-07 10:08:28,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:08:28,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:08:28,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:08:28,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:08:28,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:08:28,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:08:28,765 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:08:28,783 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-12-07 10:08:28,783 INFO L444 ModelExtractionUtils]: 18 out of 58 variables were initially zero. Simplification set additionally 37 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a0342b3-b81c-4074-a5cc-85f4f976e873/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:08:28,785 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:08:28,787 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:08:28,787 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:08:28,787 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrncat_~s~0.base)_1, ULTIMATE.start_cstrncat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrncat_~s~0.base)_1 - 1*ULTIMATE.start_cstrncat_~s~0.offset Supporting invariants [] [2019-12-07 10:08:28,801 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2019-12-07 10:08:28,802 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 10:08:28,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:28,821 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:08:28,821 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:08:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:28,825 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 10:08:28,825 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:08:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:28,832 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:08:28,832 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-12-07 10:08:28,843 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 38 states and 54 transitions. Complement of second has 6 states. [2019-12-07 10:08:28,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:08:28,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:08:28,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2019-12-07 10:08:28,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 12 letters. Loop has 2 letters. [2019-12-07 10:08:28,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:28,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 14 letters. Loop has 2 letters. [2019-12-07 10:08:28,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:28,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 12 letters. Loop has 4 letters. [2019-12-07 10:08:28,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:08:28,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 54 transitions. [2019-12-07 10:08:28,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:08:28,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 44 transitions. [2019-12-07 10:08:28,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-12-07 10:08:28,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-12-07 10:08:28,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2019-12-07 10:08:28,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:08:28,846 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-12-07 10:08:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2019-12-07 10:08:28,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-12-07 10:08:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 10:08:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2019-12-07 10:08:28,848 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-12-07 10:08:28,848 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-12-07 10:08:28,848 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 10:08:28,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2019-12-07 10:08:28,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:08:28,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:28,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:28,849 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:28,849 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:08:28,849 INFO L794 eck$LassoCheckResult]: Stem: 612#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 608#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 609#L531 assume !(main_~length1~0 < 1); 613#L531-2 assume !(main_~length2~0 < 1); 607#L534-1 assume !(main_~n~0 < 1); 598#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 599#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 614#L544-4 main_~i~1 := 0; 603#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 604#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 600#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 590#L517-1 assume !(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2; 591#L519-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 621#L519 assume !cstrncat_#t~short6; 617#L519-2 assume !!cstrncat_#t~short6;havoc cstrncat_#t~short6;havoc cstrncat_#t~post4.base, cstrncat_#t~post4.offset;havoc cstrncat_#t~mem5;cstrncat_#t~post7 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post7 - 1;havoc cstrncat_#t~post7;cstrncat_#t~post8.base, cstrncat_#t~post8.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post8.base, 1 + cstrncat_#t~post8.offset;havoc cstrncat_#t~post8.base, cstrncat_#t~post8.offset; 620#L519-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 593#L519 [2019-12-07 10:08:28,849 INFO L796 eck$LassoCheckResult]: Loop: 593#L519 assume !cstrncat_#t~short6; 616#L519-2 assume !!cstrncat_#t~short6;havoc cstrncat_#t~short6;havoc cstrncat_#t~post4.base, cstrncat_#t~post4.offset;havoc cstrncat_#t~mem5;cstrncat_#t~post7 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post7 - 1;havoc cstrncat_#t~post7;cstrncat_#t~post8.base, cstrncat_#t~post8.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post8.base, 1 + cstrncat_#t~post8.offset;havoc cstrncat_#t~post8.base, cstrncat_#t~post8.offset; 592#L519-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 593#L519 [2019-12-07 10:08:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:28,849 INFO L82 PathProgramCache]: Analyzing trace with hash 849587260, now seen corresponding path program 1 times [2019-12-07 10:08:28,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:28,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165382140] [2019-12-07 10:08:28,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:28,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165382140] [2019-12-07 10:08:28,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:28,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 10:08:28,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692979781] [2019-12-07 10:08:28,872 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 10:08:28,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:28,873 INFO L82 PathProgramCache]: Analyzing trace with hash 104447, now seen corresponding path program 1 times [2019-12-07 10:08:28,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:28,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016577358] [2019-12-07 10:08:28,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:28,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016577358] [2019-12-07 10:08:28,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:28,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:08:28,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998262364] [2019-12-07 10:08:28,879 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 10:08:28,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:28,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:08:28,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:08:28,879 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. cyclomatic complexity: 16 Second operand 3 states. [2019-12-07 10:08:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:28,885 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-12-07 10:08:28,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:08:28,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2019-12-07 10:08:28,886 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:08:28,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2019-12-07 10:08:28,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 10:08:28,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 10:08:28,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 10:08:28,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:08:28,886 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:08:28,887 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:08:28,887 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:08:28,887 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 10:08:28,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:08:28,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:08:28,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 10:08:28,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:08:28 BoogieIcfgContainer [2019-12-07 10:08:28,891 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:08:28,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:08:28,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:08:28,891 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:08:28,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:24" (3/4) ... [2019-12-07 10:08:28,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:08:28,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:08:28,895 INFO L168 Benchmark]: Toolchain (without parser) took 4670.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 935.5 MB in the beginning and 910.1 MB in the end (delta: 25.3 MB). Peak memory consumption was 194.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:28,895 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:28,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:28,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:28,896 INFO L168 Benchmark]: Boogie Preprocessor took 24.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:28,896 INFO L168 Benchmark]: RCFGBuilder took 234.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:28,896 INFO L168 Benchmark]: BuchiAutomizer took 4017.32 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 916.2 MB in the end (delta: 150.1 MB). Peak memory consumption was 208.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:28,896 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 910.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:28,898 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 356.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 234.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4017.32 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 916.2 MB in the end (delta: 150.1 MB). Peak memory consumption was 208.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 910.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 6 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 32 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 126 SDtfs, 156 SDslu, 157 SDs, 0 SdLazy, 123 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI1 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital171 mio100 ax110 hnf98 lsp85 ukn76 mio100 lsp58 div100 bol100 ite100 ukn100 eq169 hnf90 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms 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...