./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11C.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_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11C.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 faaae9aa069653e753b732f00a89bd7a139fa132 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:30:55,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:30:55,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:30:55,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:30:55,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:30:55,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:30:55,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:30:55,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:30:55,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:30:55,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:30:55,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:30:55,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:30:55,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:30:55,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:30:55,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:30:55,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:30:55,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:30:55,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:30:55,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:30:55,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:30:55,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:30:55,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:30:55,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:30:55,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:30:55,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:30:55,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:30:55,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:30:55,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:30:55,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:30:55,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:30:55,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:30:55,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:30:55,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:30:55,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:30:55,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:30:55,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:30:55,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:30:55,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:30:55,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:30:55,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:30:55,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:30:55,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 05:30:55,653 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:30:55,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:30:55,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:30:55,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:30:55,654 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:30:55,654 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 05:30:55,655 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 05:30:55,655 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 05:30:55,655 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 05:30:55,655 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 05:30:55,655 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 05:30:55,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:30:55,656 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:30:55,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:30:55,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:30:55,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 05:30:55,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 05:30:55,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 05:30:55,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:30:55,657 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 05:30:55,657 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:30:55,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 05:30:55,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:30:55,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:30:55,658 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 05:30:55,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:30:55,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:30:55,659 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 05:30:55,659 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 05:30:55,660 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_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 -> faaae9aa069653e753b732f00a89bd7a139fa132 [2019-11-20 05:30:55,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:30:55,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:30:55,856 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:30:55,857 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:30:55,858 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:30:55,860 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11C.i [2019-11-20 05:30:55,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/data/da97a98b9/7d943fbf01b545df9f26c90d2e5274e6/FLAGbd61d43ff [2019-11-20 05:30:56,310 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:30:56,311 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11C.i [2019-11-20 05:30:56,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/data/da97a98b9/7d943fbf01b545df9f26c90d2e5274e6/FLAGbd61d43ff [2019-11-20 05:30:56,680 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/data/da97a98b9/7d943fbf01b545df9f26c90d2e5274e6 [2019-11-20 05:30:56,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:30:56,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:30:56,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:30:56,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:30:56,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:30:56,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:56,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792e62f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56, skipping insertion in model container [2019-11-20 05:30:56,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:56,699 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:30:56,714 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:30:56,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:30:56,856 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:30:56,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:30:56,960 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:30:56,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56 WrapperNode [2019-11-20 05:30:56,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:30:56,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:30:56,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:30:56,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:30:56,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:56,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:56,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:30:56,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:30:56,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:30:56,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:30:57,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:57,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:57,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:57,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:57,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:57,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:57,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... [2019-11-20 05:30:57,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:30:57,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:30:57,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:30:57,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:30:57,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:30:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 05:30:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-11-20 05:30:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-11-20 05:30:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 05:30:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:30:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:30:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 05:30:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:30:57,329 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:30:57,329 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 05:30:57,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:30:57 BoogieIcfgContainer [2019-11-20 05:30:57,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:30:57,333 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 05:30:57,333 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 05:30:57,336 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 05:30:57,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:30:57,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:30:56" (1/3) ... [2019-11-20 05:30:57,338 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@750813d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:30:57, skipping insertion in model container [2019-11-20 05:30:57,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:30:57,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:30:56" (2/3) ... [2019-11-20 05:30:57,339 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@750813d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:30:57, skipping insertion in model container [2019-11-20 05:30:57,339 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:30:57,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:30:57" (3/3) ... [2019-11-20 05:30:57,341 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex11C.i [2019-11-20 05:30:57,395 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 05:30:57,396 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 05:30:57,396 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 05:30:57,396 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:30:57,396 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:30:57,396 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 05:30:57,396 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:30:57,397 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 05:30:57,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-20 05:30:57,436 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-20 05:30:57,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:30:57,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:30:57,444 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 05:30:57,444 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:30:57,444 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 05:30:57,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-20 05:30:57,446 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-20 05:30:57,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:30:57,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:30:57,447 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 05:30:57,447 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:30:57,454 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 7#L31-3true [2019-11-20 05:30:57,455 INFO L796 eck$LassoCheckResult]: Loop: 7#L31-3true call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 10#L31-1true assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 18#L35true assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 8#L39true call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 3#recENTRYtrue ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 12#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 17#recFINALtrue assume true; 15#recEXITtrue >#44#return; 6#L39-1true assume -1 == main_#t~ret12;main_#t~ite13 := -1; 20#L39-3true call write~int(main_#t~mem14 + main_#t~ite13, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem14;havoc main_#t~ret12;havoc main_#t~ite13; 7#L31-3true [2019-11-20 05:30:57,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:30:57,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2019-11-20 05:30:57,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:30:57,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738373361] [2019-11-20 05:30:57,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:30:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:30:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:30:57,563 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:30:57,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:30:57,564 INFO L82 PathProgramCache]: Analyzing trace with hash -2107477180, now seen corresponding path program 1 times [2019-11-20 05:30:57,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:30:57,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272949272] [2019-11-20 05:30:57,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:30:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:30:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:30:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:30:57,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272949272] [2019-11-20 05:30:57,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:30:57,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 05:30:57,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551892882] [2019-11-20 05:30:57,750 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 05:30:57,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:30:57,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 05:30:57,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 05:30:57,768 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2019-11-20 05:30:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:30:57,920 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-11-20 05:30:57,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 05:30:57,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2019-11-20 05:30:57,924 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-20 05:30:57,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 19 transitions. [2019-11-20 05:30:57,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 05:30:57,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-20 05:30:57,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2019-11-20 05:30:57,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:30:57,940 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 05:30:57,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2019-11-20 05:30:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 05:30:57,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 05:30:57,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-20 05:30:57,993 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 05:30:57,995 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 05:30:57,995 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 05:30:57,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2019-11-20 05:30:57,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-20 05:30:57,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:30:57,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:30:57,998 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 05:30:57,998 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:30:57,998 INFO L794 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 68#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 63#L31-3 [2019-11-20 05:30:57,998 INFO L796 eck$LassoCheckResult]: Loop: 63#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 64#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 67#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 59#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 57#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 60#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 58#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 57#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 60#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 69#recFINAL assume true; 71#recEXIT >#42#return; 65#L18-1 ~res~0 := #t~ret5;havoc #t~ret5;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~res~0; 66#recFINAL assume true; 72#recEXIT >#44#return; 61#L39-1 assume -1 == main_#t~ret12;main_#t~ite13 := -1; 62#L39-3 call write~int(main_#t~mem14 + main_#t~ite13, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem14;havoc main_#t~ret12;havoc main_#t~ite13; 63#L31-3 [2019-11-20 05:30:57,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:30:57,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 2 times [2019-11-20 05:30:57,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:30:57,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477313962] [2019-11-20 05:30:58,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:30:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:30:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:30:58,026 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:30:58,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:30:58,026 INFO L82 PathProgramCache]: Analyzing trace with hash 290320444, now seen corresponding path program 1 times [2019-11-20 05:30:58,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:30:58,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830948401] [2019-11-20 05:30:58,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:30:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:30:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:30:58,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:30:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:30:58,183 INFO L82 PathProgramCache]: Analyzing trace with hash -645910274, now seen corresponding path program 1 times [2019-11-20 05:30:58,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:30:58,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062112846] [2019-11-20 05:30:58,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:30:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:30:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:30:58,286 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:30:58,931 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2019-11-20 05:30:59,151 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-11-20 05:30:59,276 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-11-20 05:30:59,884 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 122 [2019-11-20 05:31:00,007 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-11-20 05:31:00,113 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:31:00,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:31:00,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:31:00,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:31:00,114 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:31:00,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:00,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:31:00,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:31:00,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11C.i_Iteration2_Lasso [2019-11-20 05:31:00,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:31:00,115 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:31:00,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,466 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-11-20 05:31:00,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:00,881 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2019-11-20 05:31:00,947 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:31:00,952 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:00,960 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 [2019-11-20 05:31:00,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:00,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:00,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:00,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:00,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:00,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:00,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:00,966 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:00,971 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 [2019-11-20 05:31:00,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:00,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:00,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:00,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:00,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:00,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:00,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:00,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:00,983 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 [2019-11-20 05:31:00,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:00,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:00,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:00,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:00,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:00,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:00,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:00,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:01,010 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 [2019-11-20 05:31:01,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:01,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:01,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:01,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:01,016 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:01,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:01,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:01,030 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 [2019-11-20 05:31:01,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:01,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:01,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:01,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:01,039 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:01,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:01,046 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:01,063 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 [2019-11-20 05:31:01,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:01,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:01,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:01,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:01,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:01,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:01,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:01,068 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:01,078 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 [2019-11-20 05:31:01,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:01,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:01,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:01,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:01,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:01,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:01,089 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:31:01,110 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 05:31:01,110 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:01,127 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:01,137 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 05:31:01,137 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:31:01,138 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1 Supporting invariants [] [2019-11-20 05:31:01,170 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 05:31:01,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 05:31:01,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:01,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:31:01,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:01,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 05:31:01,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:01,420 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:01,421 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-20 05:31:01,421 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:01,430 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:01,437 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2019-11-20 05:31:01,438 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:01,446 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:01,447 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:01,447 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:36, output treesize:15 [2019-11-20 05:31:01,463 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-11-20 05:31:01,463 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:01,468 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:01,469 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:01,469 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:7 [2019-11-20 05:31:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 05:31:01,519 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2019-11-20 05:31:01,520 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand 7 states. [2019-11-20 05:31:01,645 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand 7 states. Result 62 states and 73 transitions. Complement of second has 17 states. [2019-11-20 05:31:01,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2019-11-20 05:31:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 05:31:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2019-11-20 05:31:01,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 2 letters. Loop has 16 letters. [2019-11-20 05:31:01,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:01,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 16 letters. [2019-11-20 05:31:01,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:01,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 2 letters. Loop has 32 letters. [2019-11-20 05:31:01,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:01,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 73 transitions. [2019-11-20 05:31:01,656 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2019-11-20 05:31:01,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 56 states and 67 transitions. [2019-11-20 05:31:01,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2019-11-20 05:31:01,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2019-11-20 05:31:01,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 67 transitions. [2019-11-20 05:31:01,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:31:01,659 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2019-11-20 05:31:01,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 67 transitions. [2019-11-20 05:31:01,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2019-11-20 05:31:01,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-20 05:31:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2019-11-20 05:31:01,666 INFO L711 BuchiCegarLoop]: Abstraction has 51 states and 60 transitions. [2019-11-20 05:31:01,666 INFO L591 BuchiCegarLoop]: Abstraction has 51 states and 60 transitions. [2019-11-20 05:31:01,666 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 05:31:01,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 60 transitions. [2019-11-20 05:31:01,668 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2019-11-20 05:31:01,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:31:01,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:31:01,669 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:31:01,669 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:31:01,669 INFO L794 eck$LassoCheckResult]: Stem: 273#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 271#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 272#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 260#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 294#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 261#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 262#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 293#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 246#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 244#recENTRY [2019-11-20 05:31:01,669 INFO L796 eck$LassoCheckResult]: Loop: 244#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 247#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 245#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 244#recENTRY [2019-11-20 05:31:01,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:01,669 INFO L82 PathProgramCache]: Analyzing trace with hash -498407605, now seen corresponding path program 1 times [2019-11-20 05:31:01,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:31:01,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923061985] [2019-11-20 05:31:01,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:31:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:01,745 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:31:01,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:01,746 INFO L82 PathProgramCache]: Analyzing trace with hash 29956, now seen corresponding path program 1 times [2019-11-20 05:31:01,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:31:01,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869170693] [2019-11-20 05:31:01,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:31:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:01,775 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:31:01,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:01,776 INFO L82 PathProgramCache]: Analyzing trace with hash -359018118, now seen corresponding path program 2 times [2019-11-20 05:31:01,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:31:01,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807930449] [2019-11-20 05:31:01,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:31:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:01,826 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:31:01,965 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-11-20 05:31:02,338 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-11-20 05:31:02,859 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-11-20 05:31:02,963 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-11-20 05:31:03,410 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 110 [2019-11-20 05:31:03,527 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-20 05:31:03,531 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:31:03,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:31:03,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:31:03,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:31:03,532 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:31:03,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:03,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:31:03,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:31:03,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11C.i_Iteration3_Lasso [2019-11-20 05:31:03,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:31:03,532 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:31:03,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,708 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-11-20 05:31:03,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:03,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:04,205 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2019-11-20 05:31:04,308 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:31:04,308 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:04,316 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 [2019-11-20 05:31:04,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:04,327 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 [2019-11-20 05:31:04,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,330 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:04,335 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 [2019-11-20 05:31:04,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,338 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:04,343 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 [2019-11-20 05:31:04,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:04,358 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 [2019-11-20 05:31:04,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,374 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 [2019-11-20 05:31:04,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:04,383 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 [2019-11-20 05:31:04,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:04,397 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 [2019-11-20 05:31:04,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,418 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 [2019-11-20 05:31:04,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,438 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 [2019-11-20 05:31:04,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:04,449 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 [2019-11-20 05:31:04,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:04,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:04,454 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,463 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 [2019-11-20 05:31:04,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,472 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 [2019-11-20 05:31:04,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,475 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:04,481 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 [2019-11-20 05:31:04,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:04,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:04,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:04,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:04,497 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 [2019-11-20 05:31:04,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:04,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:04,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:04,519 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 [2019-11-20 05:31:04,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,521 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2019-11-20 05:31:04,521 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 05:31:04,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,538 INFO L401 nArgumentSynthesizer]: We have 44 Motzkin's Theorem applications. [2019-11-20 05:31:04,538 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 05:31:04,566 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:04,575 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 [2019-11-20 05:31:04,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:04,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:04,591 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 [2019-11-20 05:31:04,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:04,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:04,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:04,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:04,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:04,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:04,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,631 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-20 05:31:04,631 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:04,638 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:04,645 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 05:31:04,645 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:31:04,645 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~op.base) 0)_1) = 2*v_rep(select (select #memory_int rec_#in~op.base) 0)_1 + 1 Supporting invariants [] [2019-11-20 05:31:04,653 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-20 05:31:04,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 05:31:04,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:04,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 05:31:04,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:04,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-20 05:31:04,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:04,803 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:04,803 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 45 [2019-11-20 05:31:04,804 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:04,848 INFO L567 ElimStorePlain]: treesize reduction 16, result has 71.9 percent of original size [2019-11-20 05:31:04,849 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:04,849 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:24 [2019-11-20 05:31:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:31:04,877 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 05:31:04,877 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 60 transitions. cyclomatic complexity: 14 Second operand 5 states. [2019-11-20 05:31:05,025 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 60 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 99 states and 122 transitions. Complement of second has 18 states. [2019-11-20 05:31:05,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 05:31:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 05:31:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2019-11-20 05:31:05,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 05:31:05,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:05,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-20 05:31:05,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:05,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-20 05:31:05,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:05,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 122 transitions. [2019-11-20 05:31:05,033 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2019-11-20 05:31:05,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 87 states and 110 transitions. [2019-11-20 05:31:05,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2019-11-20 05:31:05,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2019-11-20 05:31:05,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 110 transitions. [2019-11-20 05:31:05,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:31:05,046 INFO L688 BuchiCegarLoop]: Abstraction has 87 states and 110 transitions. [2019-11-20 05:31:05,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 110 transitions. [2019-11-20 05:31:05,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2019-11-20 05:31:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-20 05:31:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 102 transitions. [2019-11-20 05:31:05,068 INFO L711 BuchiCegarLoop]: Abstraction has 83 states and 102 transitions. [2019-11-20 05:31:05,068 INFO L591 BuchiCegarLoop]: Abstraction has 83 states and 102 transitions. [2019-11-20 05:31:05,068 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 05:31:05,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 102 transitions. [2019-11-20 05:31:05,072 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2019-11-20 05:31:05,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:31:05,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:31:05,075 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:31:05,076 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:31:05,077 INFO L794 eck$LassoCheckResult]: Stem: 518#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 517#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 495#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 497#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 514#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 526#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 534#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 561#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 485#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 484#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 487#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 516#recFINAL assume true; 524#recEXIT >#42#return; 537#L18-1 ~res~0 := #t~ret5;havoc #t~ret5;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~res~0; 535#recFINAL assume true; 532#recEXIT >#44#return; 491#L39-1 assume !(-1 == main_#t~ret12);main_#t~ite13 := 1; 492#L39-3 [2019-11-20 05:31:05,077 INFO L796 eck$LassoCheckResult]: Loop: 492#L39-3 call write~int(main_#t~mem14 + main_#t~ite13, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem14;havoc main_#t~ret12;havoc main_#t~ite13; 527#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 538#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 536#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 512#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 513#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 547#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 542#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 513#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 547#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 548#recFINAL assume true; 555#recEXIT >#42#return; 543#L18-1 ~res~0 := #t~ret5;havoc #t~ret5;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~res~0; 544#recFINAL assume true; 541#recEXIT >#44#return; 531#L39-1 assume -1 == main_#t~ret12;main_#t~ite13 := -1; 492#L39-3 [2019-11-20 05:31:05,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:05,077 INFO L82 PathProgramCache]: Analyzing trace with hash -713572475, now seen corresponding path program 1 times [2019-11-20 05:31:05,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:31:05,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003153524] [2019-11-20 05:31:05,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:31:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:31:05,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003153524] [2019-11-20 05:31:05,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322258871] [2019-11-20 05:31:05,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:31:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:05,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-20 05:31:05,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:05,363 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:05,363 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 46 [2019-11-20 05:31:05,364 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:05,383 INFO L567 ElimStorePlain]: treesize reduction 20, result has 60.8 percent of original size [2019-11-20 05:31:05,384 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:05,384 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:25, output treesize:9 [2019-11-20 05:31:05,451 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2019-11-20 05:31:05,452 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:05,457 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:05,457 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:05,457 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2019-11-20 05:31:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:31:05,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:31:05,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2019-11-20 05:31:05,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123211782] [2019-11-20 05:31:05,465 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 05:31:05,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:05,466 INFO L82 PathProgramCache]: Analyzing trace with hash 542882406, now seen corresponding path program 2 times [2019-11-20 05:31:05,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:31:05,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995904733] [2019-11-20 05:31:05,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:31:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:05,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:31:05,915 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2019-11-20 05:31:06,441 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 121 [2019-11-20 05:31:06,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:31:06,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 05:31:06,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2019-11-20 05:31:06,528 INFO L87 Difference]: Start difference. First operand 83 states and 102 transitions. cyclomatic complexity: 26 Second operand 14 states. [2019-11-20 05:31:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:31:06,672 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2019-11-20 05:31:06,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 05:31:06,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 110 transitions. [2019-11-20 05:31:06,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 05:31:06,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 54 states and 67 transitions. [2019-11-20 05:31:06,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 05:31:06,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 05:31:06,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 67 transitions. [2019-11-20 05:31:06,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:31:06,679 INFO L688 BuchiCegarLoop]: Abstraction has 54 states and 67 transitions. [2019-11-20 05:31:06,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 67 transitions. [2019-11-20 05:31:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2019-11-20 05:31:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-20 05:31:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2019-11-20 05:31:06,684 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2019-11-20 05:31:06,684 INFO L591 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2019-11-20 05:31:06,684 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 05:31:06,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 54 transitions. [2019-11-20 05:31:06,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 05:31:06,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:31:06,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:31:06,686 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:31:06,686 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:31:06,686 INFO L794 eck$LassoCheckResult]: Stem: 763#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 761#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 747#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 748#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 760#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 769#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 781#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 780#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 742#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 741#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 744#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 762#recFINAL assume true; 772#recEXIT >#42#return; 771#L18-1 ~res~0 := #t~ret5;havoc #t~ret5;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~res~0; 770#recFINAL assume true; 768#recEXIT >#44#return; 745#L39-1 assume -1 == main_#t~ret12;main_#t~ite13 := -1; 746#L39-3 call write~int(main_#t~mem14 + main_#t~ite13, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem14;havoc main_#t~ret12;havoc main_#t~ite13; 749#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 751#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 759#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 740#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 737#recENTRY [2019-11-20 05:31:06,686 INFO L796 eck$LassoCheckResult]: Loop: 737#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 739#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 738#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 737#recENTRY [2019-11-20 05:31:06,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:06,687 INFO L82 PathProgramCache]: Analyzing trace with hash -873815595, now seen corresponding path program 2 times [2019-11-20 05:31:06,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:31:06,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328735862] [2019-11-20 05:31:06,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:31:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:06,728 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:31:06,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:06,729 INFO L82 PathProgramCache]: Analyzing trace with hash 29956, now seen corresponding path program 2 times [2019-11-20 05:31:06,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:31:06,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070344441] [2019-11-20 05:31:06,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:31:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:06,739 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:31:06,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:06,740 INFO L82 PathProgramCache]: Analyzing trace with hash -43609424, now seen corresponding path program 3 times [2019-11-20 05:31:06,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:31:06,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433072539] [2019-11-20 05:31:06,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:31:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:31:06,797 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:31:06,912 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-11-20 05:31:07,328 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2019-11-20 05:31:09,077 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 231 DAG size of output: 200 [2019-11-20 05:31:09,513 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-11-20 05:31:09,897 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-11-20 05:31:10,115 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-20 05:31:10,117 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:31:10,117 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:31:10,118 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:31:10,118 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:31:10,118 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:31:10,118 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:10,118 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:31:10,118 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:31:10,118 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11C.i_Iteration5_Lasso [2019-11-20 05:31:10,118 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:31:10,118 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:31:10,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,322 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-11-20 05:31:10,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:31:10,913 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-11-20 05:31:10,977 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:31:10,977 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:10,982 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 [2019-11-20 05:31:10,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:10,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:10,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:10,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:10,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:10,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:10,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:10,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:10,989 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 [2019-11-20 05:31:10,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:10,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:10,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:10,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:10,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:10,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:10,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:10,992 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:10,998 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 [2019-11-20 05:31:10,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:10,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:10,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:10,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:10,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:11,006 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:11,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:11,013 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 [2019-11-20 05:31:11,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:11,027 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 [2019-11-20 05:31:11,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:11,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:11,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,041 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 [2019-11-20 05:31:11,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,048 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 [2019-11-20 05:31:11,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,056 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 [2019-11-20 05:31:11,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,067 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 [2019-11-20 05:31:11,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:11,075 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:11,078 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:11,082 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:11,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,091 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 [2019-11-20 05:31:11,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,094 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,098 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 [2019-11-20 05:31:11,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:31:11,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:11,115 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 [2019-11-20 05:31:11,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:11,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:11,124 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 [2019-11-20 05:31:11,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:11,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:11,134 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 [2019-11-20 05:31:11,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:31:11,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:31:11,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:11,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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) [2019-11-20 05:31:11,154 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:31:11,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,160 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:11,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:11,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:31:11,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:11,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:11,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,186 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 [2019-11-20 05:31:11,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,187 INFO L203 nArgumentSynthesizer]: 16 stem disjuncts [2019-11-20 05:31:11,187 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 05:31:11,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,218 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2019-11-20 05:31:11,218 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 05:31:11,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,260 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 [2019-11-20 05:31:11,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:11,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:11,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,278 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 [2019-11-20 05:31:11,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:31:11,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:31:11,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:31:11,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:31:11,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:31:11,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:31:11,287 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:31:11,298 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-20 05:31:11,299 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cf80b37-61bc-41a7-8f33-5e37284e06a0/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 [2019-11-20 05:31:11,302 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:31:11,304 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 05:31:11,304 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:31:11,304 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_2) = 2*v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_2 + 1 Supporting invariants [1*v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_2 - 1*v_rep(select (select #memory_int rec_#in~op.base) rec_#in~op.offset)_2 >= 0] [2019-11-20 05:31:11,312 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-20 05:31:11,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 05:31:11,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:11,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 05:31:11,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:11,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:31:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:11,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 05:31:11,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:11,433 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-11-20 05:31:11,434 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:11,438 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:11,438 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:11,438 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-11-20 05:31:11,470 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:11,471 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 53 [2019-11-20 05:31:11,472 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:11,497 INFO L567 ElimStorePlain]: treesize reduction 20, result has 68.8 percent of original size [2019-11-20 05:31:11,498 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:11,498 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:23 [2019-11-20 05:31:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:31:11,513 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 05:31:11,513 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13 Second operand 5 states. [2019-11-20 05:31:11,610 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 55 states and 65 transitions. Complement of second has 14 states. [2019-11-20 05:31:11,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 05:31:11,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 05:31:11,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-11-20 05:31:11,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 22 letters. Loop has 3 letters. [2019-11-20 05:31:11,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:11,612 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 05:31:11,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:11,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 05:31:11,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:11,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:31:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:11,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 05:31:11,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:11,736 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-11-20 05:31:11,736 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:11,741 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:11,741 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:11,741 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-11-20 05:31:11,786 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:11,786 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 53 [2019-11-20 05:31:11,787 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:11,826 INFO L567 ElimStorePlain]: treesize reduction 20, result has 68.8 percent of original size [2019-11-20 05:31:11,827 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:11,827 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:23 [2019-11-20 05:31:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:31:11,850 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 05:31:11,850 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13 Second operand 5 states. [2019-11-20 05:31:11,917 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 55 states and 65 transitions. Complement of second has 14 states. [2019-11-20 05:31:11,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 05:31:11,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 05:31:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-11-20 05:31:11,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 22 letters. Loop has 3 letters. [2019-11-20 05:31:11,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:11,918 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 05:31:11,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:31:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:11,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 05:31:11,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:11,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:31:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:31:12,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 05:31:12,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:31:12,018 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-11-20 05:31:12,018 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:12,022 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:12,023 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:12,023 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-11-20 05:31:12,051 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:31:12,052 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 53 [2019-11-20 05:31:12,053 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:31:12,096 INFO L567 ElimStorePlain]: treesize reduction 20, result has 68.8 percent of original size [2019-11-20 05:31:12,097 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:31:12,097 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:23 [2019-11-20 05:31:12,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:31:12,113 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 3 loop predicates [2019-11-20 05:31:12,113 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13 Second operand 5 states. [2019-11-20 05:31:12,228 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 68 states and 78 transitions. Complement of second has 15 states. [2019-11-20 05:31:12,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 05:31:12,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 05:31:12,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2019-11-20 05:31:12,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 22 letters. Loop has 3 letters. [2019-11-20 05:31:12,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:12,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 25 letters. Loop has 3 letters. [2019-11-20 05:31:12,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:12,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 22 letters. Loop has 6 letters. [2019-11-20 05:31:12,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:31:12,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 78 transitions. [2019-11-20 05:31:12,232 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:31:12,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 0 states and 0 transitions. [2019-11-20 05:31:12,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 05:31:12,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 05:31:12,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 05:31:12,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:31:12,233 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:31:12,233 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:31:12,233 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:31:12,233 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 05:31:12,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:31:12,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:31:12,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 05:31:12,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:31:12 BoogieIcfgContainer [2019-11-20 05:31:12,238 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 05:31:12,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:31:12,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:31:12,239 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:31:12,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:30:57" (3/4) ... [2019-11-20 05:31:12,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 05:31:12,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:31:12,243 INFO L168 Benchmark]: Toolchain (without parser) took 15560.08 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 365.4 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -296.1 MB). Peak memory consumption was 69.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:31:12,243 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-20 05:31:12,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:31:12,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:31:12,244 INFO L168 Benchmark]: Boogie Preprocessor took 22.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:31:12,244 INFO L168 Benchmark]: RCFGBuilder took 314.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:31:12,245 INFO L168 Benchmark]: BuchiAutomizer took 14906.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 232.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -141.5 MB). Peak memory consumption was 91.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:31:12,245 INFO L168 Benchmark]: Witness Printer took 3.46 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. [2019-11-20 05:31:12,247 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 277.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 314.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 14906.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 232.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -141.5 MB). Peak memory consumption was 91.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.46 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[qq][qq] and consists of 8 locations. One deterministic module has affine ranking function 2 * unknown-#memory_int-unknown[op][0] + 1 and consists of 6 locations. One nondeterministic module has affine ranking function 2 * \old(unknown-#memory_int-unknown)[op][op] + 1 and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 12.5s. Construction of modules took 0.3s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 83 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/4 HoareTripleCheckerStatistics: 82 SDtfs, 59 SDslu, 156 SDs, 0 SdLazy, 276 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital388 mio100 ax100 hnf100 lsp98 ukn41 mio100 lsp30 div100 bol100 ite100 ukn100 eq174 hnf94 smp100 dnf466 smp79 tf100 neg86 sie150 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 72ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 16 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 76 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...