./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 64bit --witnessprinter.graph.data.programhash 29f46a81991b9bc0fef856343662e1cc264d2d45 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:29:29,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:29:29,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:29:29,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:29:29,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:29:29,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:29:29,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:29:29,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:29:29,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:29:29,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:29:29,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:29:29,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:29:29,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:29:29,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:29:29,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:29:29,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:29:29,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:29:29,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:29:29,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:29:29,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:29:29,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:29:29,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:29:29,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:29:29,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:29:29,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:29:29,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:29:29,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:29:29,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:29:29,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:29:29,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:29:29,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:29:29,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:29:29,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:29:29,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:29:29,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:29:29,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:29:29,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:29:29,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:29:29,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:29:29,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:29:29,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:29:29,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 23:29:29,866 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:29:29,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:29:29,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:29:29,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:29:29,878 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:29:29,878 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 23:29:29,879 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 23:29:29,879 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 23:29:29,879 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 23:29:29,879 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 23:29:29,879 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 23:29:29,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:29:29,880 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:29:29,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:29:29,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:29:29,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 23:29:29,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 23:29:29,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 23:29:29,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:29:29,881 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 23:29:29,882 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:29:29,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 23:29:29,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:29:29,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:29:29,883 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 23:29:29,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:29:29,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:29:29,884 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 23:29:29,885 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 23:29:29,885 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_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29f46a81991b9bc0fef856343662e1cc264d2d45 [2019-11-19 23:29:30,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:29:30,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:29:30,061 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:29:30,063 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:29:30,063 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:29:30,063 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i [2019-11-19 23:29:30,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/data/9ae5f26fd/0eea064cd77949cb8559b026735b9eae/FLAGe99f7e59a [2019-11-19 23:29:30,552 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:29:30,553 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i [2019-11-19 23:29:30,566 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/data/9ae5f26fd/0eea064cd77949cb8559b026735b9eae/FLAGe99f7e59a [2019-11-19 23:29:30,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/bin/uautomizer/data/9ae5f26fd/0eea064cd77949cb8559b026735b9eae [2019-11-19 23:29:30,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:29:30,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:29:30,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:29:30,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:29:30,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:29:30,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:29:30" (1/1) ... [2019-11-19 23:29:30,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a77e80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30, skipping insertion in model container [2019-11-19 23:29:30,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:29:30" (1/1) ... [2019-11-19 23:29:30,592 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:29:30,624 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:29:31,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:29:31,043 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:29:31,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:29:31,126 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:29:31,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31 WrapperNode [2019-11-19 23:29:31,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:29:31,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:29:31,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:29:31,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:29:31,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:29:31,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:29:31,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:29:31,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:29:31,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... [2019-11-19 23:29:31,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:29:31,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:29:31,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:29:31,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:29:31,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 23:29:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:29:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:29:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:29:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:29:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:29:31,533 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:29:31,533 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 23:29:31,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:29:31 BoogieIcfgContainer [2019-11-19 23:29:31,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:29:31,535 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 23:29:31,535 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 23:29:31,537 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 23:29:31,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:29:31,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 11:29:30" (1/3) ... [2019-11-19 23:29:31,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@261bbcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:29:31, skipping insertion in model container [2019-11-19 23:29:31,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:29:31,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:31" (2/3) ... [2019-11-19 23:29:31,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@261bbcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:29:31, skipping insertion in model container [2019-11-19 23:29:31,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:29:31,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:29:31" (3/3) ... [2019-11-19 23:29:31,541 INFO L371 chiAutomizerObserver]: Analyzing ICFG substring-alloca-1.i [2019-11-19 23:29:31,580 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 23:29:31,581 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 23:29:31,581 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 23:29:31,581 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:29:31,581 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:29:31,581 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 23:29:31,581 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:29:31,581 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 23:29:31,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-19 23:29:31,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-19 23:29:31,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:29:31,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:29:31,617 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 23:29:31,617 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-19 23:29:31,617 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 23:29:31,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-19 23:29:31,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-19 23:29:31,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:29:31,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:29:31,620 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 23:29:31,620 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-19 23:29:31,625 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 9#L565true assume !(main_~length1~0 < 1); 13#L565-2true assume !(main_~length2~0 < 1); 8#L568-1true 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;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 4#L550-3true [2019-11-19 23:29:31,625 INFO L796 eck$LassoCheckResult]: Loop: 4#L550-3true call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 19#L550-1true assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 3#L553-5true assume !true; 5#L553-6true call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 6#L557true assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 4#L550-3true [2019-11-19 23:29:31,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:31,630 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-19 23:29:31,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:31,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483012731] [2019-11-19 23:29:31,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:31,783 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:31,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:31,784 INFO L82 PathProgramCache]: Analyzing trace with hash 47887114, now seen corresponding path program 1 times [2019-11-19 23:29:31,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:31,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166240375] [2019-11-19 23:29:31,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:29:31,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166240375] [2019-11-19 23:29:31,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:29:31,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:29:31,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841793045] [2019-11-19 23:29:31,823 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 23:29:31,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:29:31,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:29:31,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:29:31,840 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-11-19 23:29:31,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:29:31,846 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-11-19 23:29:31,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:29:31,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2019-11-19 23:29:31,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-19 23:29:31,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 16 transitions. [2019-11-19 23:29:31,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-19 23:29:31,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-19 23:29:31,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-11-19 23:29:31,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:29:31,855 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-19 23:29:31,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-11-19 23:29:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-19 23:29:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-19 23:29:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-11-19 23:29:31,878 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-19 23:29:31,878 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-19 23:29:31,878 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 23:29:31,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-11-19 23:29:31,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-19 23:29:31,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:29:31,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:29:31,880 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 23:29:31,880 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:29:31,880 INFO L794 eck$LassoCheckResult]: Stem: 48#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 44#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 45#L565 assume !(main_~length1~0 < 1); 49#L565-2 assume !(main_~length2~0 < 1); 50#L568-1 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;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 51#L550-3 [2019-11-19 23:29:31,881 INFO L796 eck$LassoCheckResult]: Loop: 51#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 52#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 42#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 43#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 53#L553-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~short6;havoc substring_#t~mem4;havoc substring_#t~mem3; 46#L553-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 47#L557 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 51#L550-3 [2019-11-19 23:29:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:31,881 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2019-11-19 23:29:31,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:31,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541086562] [2019-11-19 23:29:31,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:31,922 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:31,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:31,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1237496093, now seen corresponding path program 1 times [2019-11-19 23:29:31,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:31,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123683600] [2019-11-19 23:29:31,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:31,951 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:31,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:31,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1302992386, now seen corresponding path program 1 times [2019-11-19 23:29:31,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:31,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734528712] [2019-11-19 23:29:31,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:32,037 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:32,292 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2019-11-19 23:29:32,764 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-11-19 23:29:32,888 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-11-19 23:29:32,901 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:29:32,902 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:29:32,903 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:29:32,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:29:32,907 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:29:32,908 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:32,908 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:29:32,908 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:29:32,909 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration2_Lasso [2019-11-19 23:29:32,909 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:29:32,909 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:29:32,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,345 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-11-19 23:29:33,529 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-11-19 23:29:33,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:33,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:34,039 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2019-11-19 23:29:34,279 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:29:34,284 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:34,301 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 [2019-11-19 23:29:34,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:34,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:34,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:34,306 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2019-11-19 23:29:34,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:34,322 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 23:29:34,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:34,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:34,348 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 [2019-11-19 23:29:34,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:34,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:34,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:34,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:34,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:34,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:34,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:34,377 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 [2019-11-19 23:29:34,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:34,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:34,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:34,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:34,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:34,384 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:34,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:34,409 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 [2019-11-19 23:29:34,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:34,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:34,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:34,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:34,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:34,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:34,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:34,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:34,420 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 [2019-11-19 23:29:34,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:34,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:34,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:34,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:34,439 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:34,440 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:34,454 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:34,473 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 [2019-11-19 23:29:34,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:34,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:34,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:34,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:34,485 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:34,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:34,499 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:29:34,552 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-19 23:29:34,553 INFO L444 ModelExtractionUtils]: 23 out of 31 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:34,589 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:34,593 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:29:34,593 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:29:34,593 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1, ULTIMATE.start_substring_~ps~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1 - 1*ULTIMATE.start_substring_~ps~0.offset Supporting invariants [] [2019-11-19 23:29:34,674 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2019-11-19 23:29:34,683 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 23:29:34,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:34,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 23:29:34,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:34,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 23:29:34,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:29:34,785 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 [2019-11-19 23:29:34,785 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-19 23:29:34,859 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 19 states and 26 transitions. Complement of second has 4 states. [2019-11-19 23:29:34,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 23:29:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 23:29:34,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2019-11-19 23:29:34,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 5 letters. Loop has 7 letters. [2019-11-19 23:29:34,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:34,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 12 letters. Loop has 7 letters. [2019-11-19 23:29:34,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:34,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 5 letters. Loop has 14 letters. [2019-11-19 23:29:34,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:34,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2019-11-19 23:29:34,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:29:34,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 24 transitions. [2019-11-19 23:29:34,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-19 23:29:34,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-19 23:29:34,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2019-11-19 23:29:34,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:29:34,867 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-19 23:29:34,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2019-11-19 23:29:34,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-19 23:29:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 23:29:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2019-11-19 23:29:34,870 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-19 23:29:34,870 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-19 23:29:34,870 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 23:29:34,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2019-11-19 23:29:34,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:29:34,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:29:34,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:29:34,872 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:29:34,872 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:29:34,872 INFO L794 eck$LassoCheckResult]: Stem: 182#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 174#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 175#L565 assume !(main_~length1~0 < 1); 183#L565-2 assume !(main_~length2~0 < 1); 184#L568-1 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;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 178#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 180#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 170#L553-5 [2019-11-19 23:29:34,872 INFO L796 eck$LassoCheckResult]: Loop: 170#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 171#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 185#L553-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~short6;havoc substring_#t~mem4;havoc substring_#t~mem3;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 170#L553-5 [2019-11-19 23:29:34,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:34,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935627, now seen corresponding path program 1 times [2019-11-19 23:29:34,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:34,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232779360] [2019-11-19 23:29:34,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:34,919 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:34,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:34,920 INFO L82 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 1 times [2019-11-19 23:29:34,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:34,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649290532] [2019-11-19 23:29:34,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:34,934 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:34,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:34,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1594173083, now seen corresponding path program 1 times [2019-11-19 23:29:34,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:34,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366388655] [2019-11-19 23:29:34,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:34,985 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:35,090 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-19 23:29:35,561 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 100 [2019-11-19 23:29:35,777 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-11-19 23:29:35,779 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:29:35,779 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:29:35,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:29:35,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:29:35,780 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:29:35,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:35,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:29:35,780 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:29:35,780 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration3_Lasso [2019-11-19 23:29:35,780 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:29:35,780 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:29:35,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:35,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:36,332 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-11-19 23:29:36,500 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-11-19 23:29:36,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:36,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:36,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:37,156 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:29:37,162 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:37,181 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 [2019-11-19 23:29:37,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:37,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,197 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 [2019-11-19 23:29:37,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,209 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 [2019-11-19 23:29:37,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:37,212 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:37,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,221 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 [2019-11-19 23:29:37,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,224 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,228 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 [2019-11-19 23:29:37,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,233 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,240 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 [2019-11-19 23:29:37,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,252 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 [2019-11-19 23:29:37,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,259 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 [2019-11-19 23:29:37,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,264 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,272 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 [2019-11-19 23:29:37,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:37,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:37,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:37,293 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 [2019-11-19 23:29:37,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:37,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:37,308 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 [2019-11-19 23:29:37,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:37,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:29:37,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:37,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:37,336 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:37,350 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 [2019-11-19 23:29:37,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:37,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:37,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:37,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:37,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:37,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,392 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 [2019-11-19 23:29:37,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,395 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,401 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 [2019-11-19 23:29:37,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,404 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,411 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 [2019-11-19 23:29:37,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,420 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 [2019-11-19 23:29:37,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,429 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 [2019-11-19 23:29:37,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:37,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:37,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:37,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,437 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 [2019-11-19 23:29:37,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:37,441 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:37,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:37,457 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 [2019-11-19 23:29:37,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:37,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:37,464 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:37,469 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 [2019-11-19 23:29:37,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:37,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:37,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:37,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:37,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:37,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:37,504 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:29:37,574 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2019-11-19 23:29:37,575 INFO L444 ModelExtractionUtils]: 20 out of 43 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:37,578 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:37,582 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:29:37,582 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:29:37,582 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_substring_~pt~0.base)_2, ULTIMATE.start_substring_~ps2~0.offset) = 1*v_rep(select #length ULTIMATE.start_substring_~pt~0.base)_2 - 1*ULTIMATE.start_substring_~ps2~0.offset Supporting invariants [] [2019-11-19 23:29:37,660 INFO L297 tatePredicateManager]: 22 out of 23 supporting invariants were superfluous and have been removed [2019-11-19 23:29:37,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 23:29:37,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:37,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-19 23:29:37,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:37,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 23:29:37,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:29:37,746 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 [2019-11-19 23:29:37,746 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-19 23:29:37,803 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 40 states and 54 transitions. Complement of second has 6 states. [2019-11-19 23:29:37,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 23:29:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 23:29:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-11-19 23:29:37,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-19 23:29:37,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:37,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-19 23:29:37,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:37,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-19 23:29:37,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:37,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 54 transitions. [2019-11-19 23:29:37,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:29:37,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 28 states and 38 transitions. [2019-11-19 23:29:37,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-19 23:29:37,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-19 23:29:37,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 38 transitions. [2019-11-19 23:29:37,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:29:37,810 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 38 transitions. [2019-11-19 23:29:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 38 transitions. [2019-11-19 23:29:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2019-11-19 23:29:37,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-19 23:29:37,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2019-11-19 23:29:37,816 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2019-11-19 23:29:37,817 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2019-11-19 23:29:37,817 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 23:29:37,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 32 transitions. [2019-11-19 23:29:37,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:29:37,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:29:37,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:29:37,822 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:29:37,822 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:29:37,822 INFO L794 eck$LassoCheckResult]: Stem: 384#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 378#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 379#L565 assume !(main_~length1~0 < 1); 385#L565-2 assume !(main_~length2~0 < 1); 386#L568-1 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;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 387#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 388#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 397#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 399#L553-1 assume !substring_#t~short6; 398#L553-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~short6;havoc substring_#t~mem4;havoc substring_#t~mem3; 392#L553-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 393#L557 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 389#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 391#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 380#L553-5 [2019-11-19 23:29:37,823 INFO L796 eck$LassoCheckResult]: Loop: 380#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 381#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 394#L553-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~short6;havoc substring_#t~mem4;havoc substring_#t~mem3;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 380#L553-5 [2019-11-19 23:29:37,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:37,823 INFO L82 PathProgramCache]: Analyzing trace with hash 2012026433, now seen corresponding path program 1 times [2019-11-19 23:29:37,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:37,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056903777] [2019-11-19 23:29:37,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:29:37,910 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056903777] [2019-11-19 23:29:37,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:29:37,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 23:29:37,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216674318] [2019-11-19 23:29:37,911 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:29:37,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:37,911 INFO L82 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 2 times [2019-11-19 23:29:37,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:37,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760669155] [2019-11-19 23:29:37,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:37,932 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:38,036 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-19 23:29:38,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:29:38,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:29:38,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:29:38,063 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. cyclomatic complexity: 12 Second operand 5 states. [2019-11-19 23:29:38,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:29:38,094 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-11-19 23:29:38,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:29:38,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2019-11-19 23:29:38,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 23:29:38,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 26 states and 34 transitions. [2019-11-19 23:29:38,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-19 23:29:38,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-19 23:29:38,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-19 23:29:38,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:29:38,097 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-19 23:29:38,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-19 23:29:38,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2019-11-19 23:29:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-19 23:29:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2019-11-19 23:29:38,100 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2019-11-19 23:29:38,100 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2019-11-19 23:29:38,100 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 23:29:38,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 32 transitions. [2019-11-19 23:29:38,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:29:38,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:29:38,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:29:38,101 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:29:38,101 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:29:38,102 INFO L794 eck$LassoCheckResult]: Stem: 446#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 440#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 441#L565 assume !(main_~length1~0 < 1); 447#L565-2 assume !(main_~length2~0 < 1); 448#L568-1 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;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 449#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 450#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 459#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 461#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 460#L553-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~short6;havoc substring_#t~mem4;havoc substring_#t~mem3; 454#L553-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 455#L557 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 451#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 453#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 442#L553-5 [2019-11-19 23:29:38,102 INFO L796 eck$LassoCheckResult]: Loop: 442#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 443#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 456#L553-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~short6;havoc substring_#t~mem4;havoc substring_#t~mem3;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 442#L553-5 [2019-11-19 23:29:38,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:38,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1954768131, now seen corresponding path program 2 times [2019-11-19 23:29:38,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:38,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61191229] [2019-11-19 23:29:38,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:38,136 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:38,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:38,137 INFO L82 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 3 times [2019-11-19 23:29:38,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:38,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633562226] [2019-11-19 23:29:38,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:38,146 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:38,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:38,147 INFO L82 PathProgramCache]: Analyzing trace with hash -964145949, now seen corresponding path program 1 times [2019-11-19 23:29:38,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:38,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808087618] [2019-11-19 23:29:38,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:38,219 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:38,939 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 143 [2019-11-19 23:29:39,101 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-11-19 23:29:39,103 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:29:39,103 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:29:39,103 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:29:39,103 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:29:39,103 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:29:39,103 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:39,103 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:29:39,104 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:29:39,104 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration5_Lasso [2019-11-19 23:29:39,104 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:29:39,104 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:29:39,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,683 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2019-11-19 23:29:39,919 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-11-19 23:29:39,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:39,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:29:40,250 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-19 23:29:40,784 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-11-19 23:29:40,930 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:29:40,931 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:40,937 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 [2019-11-19 23:29:40,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:40,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:40,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:40,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:40,943 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:40,943 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:40,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:40,959 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 [2019-11-19 23:29:40,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:40,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:40,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:40,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:40,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:40,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:40,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:40,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:40,969 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 [2019-11-19 23:29:40,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:40,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:40,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:40,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:40,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:40,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:40,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:40,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:40,981 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 [2019-11-19 23:29:40,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:40,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:40,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:40,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:40,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:40,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:40,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:40,988 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:40,993 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 [2019-11-19 23:29:40,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:40,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:40,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:40,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:40,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:40,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:40,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:40,996 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,001 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 [2019-11-19 23:29:41,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:41,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:41,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:41,005 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,010 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 [2019-11-19 23:29:41,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,015 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,019 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 [2019-11-19 23:29:41,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:41,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:41,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:41,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:29:41,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,038 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 [2019-11-19 23:29:41,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:41,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:41,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:41,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,045 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 [2019-11-19 23:29:41,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,050 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,057 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 [2019-11-19 23:29:41,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:29:41,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:29:41,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:29:41,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,065 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 [2019-11-19 23:29:41,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,079 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 [2019-11-19 23:29:41,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,099 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,121 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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) [2019-11-19 23:29:41,133 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 [2019-11-19 23:29:41,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:29:41,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,162 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 [2019-11-19 23:29:41,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,167 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,172 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 [2019-11-19 23:29:41,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,173 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2019-11-19 23:29:41,174 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-19 23:29:41,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,203 INFO L401 nArgumentSynthesizer]: We have 60 Motzkin's Theorem applications. [2019-11-19 23:29:41,203 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-19 23:29:41,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,249 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 [2019-11-19 23:29:41,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,252 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,252 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,258 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 [2019-11-19 23:29:41,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,267 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 [2019-11-19 23:29:41,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:29:41,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:29:41,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:29:41,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:29:41,283 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:29:41,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:29:41,306 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:29:41,380 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2019-11-19 23:29:41,380 INFO L444 ModelExtractionUtils]: 26 out of 58 variables were initially zero. Simplification set additionally 29 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6675c4d-6da2-4338-8f85-120cbad63ac9/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 [2019-11-19 23:29:41,384 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:29:41,393 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:29:41,393 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:29:41,394 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps2~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2) = -1*ULTIMATE.start_substring_~ps2~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 Supporting invariants [] [2019-11-19 23:29:41,536 INFO L297 tatePredicateManager]: 43 out of 45 supporting invariants were superfluous and have been removed [2019-11-19 23:29:41,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 23:29:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:41,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-19 23:29:41,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:41,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 23:29:41,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:29:41,615 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 [2019-11-19 23:29:41,615 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-11-19 23:29:41,668 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 42 states and 54 transitions. Complement of second has 8 states. [2019-11-19 23:29:41,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 23:29:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 23:29:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-11-19 23:29:41,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 23:29:41,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:41,670 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 23:29:41,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:41,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-19 23:29:41,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:41,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 23:29:41,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:29:41,742 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 23:29:41,742 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-11-19 23:29:41,791 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 42 states and 54 transitions. Complement of second has 8 states. [2019-11-19 23:29:41,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 23:29:41,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 23:29:41,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-11-19 23:29:41,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 23:29:41,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:41,792 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 23:29:41,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:41,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-19 23:29:41,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:41,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 23:29:41,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:29:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:29:41,866 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 23:29:41,866 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-11-19 23:29:41,910 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 50 states and 66 transitions. Complement of second has 7 states. [2019-11-19 23:29:41,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 23:29:41,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 23:29:41,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2019-11-19 23:29:41,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 23:29:41,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:41,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 17 letters. Loop has 3 letters. [2019-11-19 23:29:41,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:41,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 6 letters. [2019-11-19 23:29:41,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:29:41,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2019-11-19 23:29:41,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:29:41,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 54 transitions. [2019-11-19 23:29:41,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-19 23:29:41,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-19 23:29:41,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 54 transitions. [2019-11-19 23:29:41,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:29:41,917 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 54 transitions. [2019-11-19 23:29:41,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 54 transitions. [2019-11-19 23:29:41,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2019-11-19 23:29:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-19 23:29:41,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2019-11-19 23:29:41,921 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 52 transitions. [2019-11-19 23:29:41,921 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 52 transitions. [2019-11-19 23:29:41,921 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 23:29:41,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 52 transitions. [2019-11-19 23:29:41,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:29:41,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:29:41,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:29:41,922 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:29:41,922 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:29:41,923 INFO L794 eck$LassoCheckResult]: Stem: 1003#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 994#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 995#L565 assume !(main_~length1~0 < 1); 1004#L565-2 assume !(main_~length2~0 < 1); 1005#L568-1 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;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 998#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 999#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1024#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1014#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1013#L553-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~short6;havoc substring_#t~mem4;havoc substring_#t~mem3; 996#L553-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 997#L557 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1000#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1002#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1011#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 991#L553-1 [2019-11-19 23:29:41,923 INFO L796 eck$LassoCheckResult]: Loop: 991#L553-1 assume !substring_#t~short6; 1006#L553-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~short6;havoc substring_#t~mem4;havoc substring_#t~mem3;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 990#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 991#L553-1 [2019-11-19 23:29:41,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:41,923 INFO L82 PathProgramCache]: Analyzing trace with hash 468269947, now seen corresponding path program 3 times [2019-11-19 23:29:41,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:41,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244222281] [2019-11-19 23:29:41,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:29:41,954 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:29:41,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:29:41,955 INFO L82 PathProgramCache]: Analyzing trace with hash 64727, now seen corresponding path program 1 times [2019-11-19 23:29:41,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:29:41,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705505445] [2019-11-19 23:29:41,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:29:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:29:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:29:41,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705505445] [2019-11-19 23:29:41,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:29:41,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:29:41,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633578571] [2019-11-19 23:29:41,974 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 23:29:41,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:29:41,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:29:41,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:29:41,974 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. cyclomatic complexity: 18 Second operand 3 states. [2019-11-19 23:29:41,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:29:41,989 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-19 23:29:41,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:29:41,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2019-11-19 23:29:41,990 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:29:41,990 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2019-11-19 23:29:41,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 23:29:41,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 23:29:41,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 23:29:41,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:29:41,991 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:29:41,991 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:29:41,991 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:29:41,991 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-19 23:29:41,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:29:41,991 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:29:41,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 23:29:41,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 11:29:41 BoogieIcfgContainer [2019-11-19 23:29:41,996 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 23:29:41,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:29:41,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:29:41,996 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:29:41,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:29:31" (3/4) ... [2019-11-19 23:29:41,999 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:29:41,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:29:42,000 INFO L168 Benchmark]: Toolchain (without parser) took 11422.06 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 383.8 MB). Free memory was 938.1 MB in the beginning and 1.2 GB in the end (delta: -263.9 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:29:42,000 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:29:42,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 938.1 MB in the beginning and 1.2 GB in the end (delta: -220.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:29:42,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:29:42,001 INFO L168 Benchmark]: Boogie Preprocessor took 24.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:29:42,002 INFO L168 Benchmark]: RCFGBuilder took 341.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:29:42,002 INFO L168 Benchmark]: BuchiAutomizer took 10460.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 206.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -76.0 MB). Peak memory consumption was 130.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:29:42,002 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:29:42,005 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 548.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 938.1 MB in the beginning and 1.2 GB in the end (delta: -220.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 341.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 10460.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 206.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -76.0 MB). Peak memory consumption was 130.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * ps and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[pt] + -1 * ps2 and consists of 4 locations. One nondeterministic module has affine ranking function -1 * ps2 + unknown-#length-unknown[nondetString1] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.4s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 9.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 39 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 107 SDtfs, 102 SDslu, 63 SDs, 0 SdLazy, 105 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital251 mio100 ax107 hnf99 lsp89 ukn85 mio100 lsp39 div100 bol100 ite100 ukn100 eq193 hnf88 smp94 dnf180 smp75 tf100 neg92 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 74ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 12 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 60 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...