./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/sep05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/sep05-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0de1e24b39a951a670bac9cdad830e10aacf376 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:15:51,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:15:51,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:15:51,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:15:51,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:15:51,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:15:51,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:15:51,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:15:51,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:15:51,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:15:51,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:15:51,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:15:51,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:15:51,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:15:51,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:15:51,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:15:51,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:15:51,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:15:51,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:15:51,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:15:51,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:15:51,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:15:51,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:15:51,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:15:51,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:15:51,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:15:51,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:15:51,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:15:51,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:15:51,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:15:51,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:15:51,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:15:51,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:15:51,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:15:51,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:15:51,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:15:51,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:15:51,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:15:51,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:15:51,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:15:51,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:15:51,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 16:15:51,985 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:15:51,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:15:51,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:15:51,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:15:51,986 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:15:51,987 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:15:51,987 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:15:51,987 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:15:51,987 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:15:51,987 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:15:51,987 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:15:51,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:15:51,987 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:15:51,988 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:15:51,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:15:51,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:15:51,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:15:51,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:15:51,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:15:51,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:15:51,988 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:15:51,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:15:51,989 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:15:51,989 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:15:51,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:15:51,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:15:51,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:15:51,989 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:15:51,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:15:51,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:15:51,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:15:51,990 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:15:51,990 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:15:51,990 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_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0de1e24b39a951a670bac9cdad830e10aacf376 [2019-12-07 16:15:52,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:15:52,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:15:52,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:15:52,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:15:52,107 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:15:52,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/../../sv-benchmarks/c/reducercommutativity/sep05-1.i [2019-12-07 16:15:52,153 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/data/5f6113618/411101f58b8646bab8b65bad8879b257/FLAG56469b76b [2019-12-07 16:15:52,505 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:15:52,506 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/sv-benchmarks/c/reducercommutativity/sep05-1.i [2019-12-07 16:15:52,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/data/5f6113618/411101f58b8646bab8b65bad8879b257/FLAG56469b76b [2019-12-07 16:15:52,518 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/data/5f6113618/411101f58b8646bab8b65bad8879b257 [2019-12-07 16:15:52,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:15:52,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:15:52,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:15:52,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:15:52,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:15:52,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce1184f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52, skipping insertion in model container [2019-12-07 16:15:52,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:15:52,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:15:52,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:15:52,701 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:15:52,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:15:52,725 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:15:52,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52 WrapperNode [2019-12-07 16:15:52,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:15:52,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:15:52,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:15:52,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:15:52,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:15:52,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:15:52,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:15:52,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:15:52,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... [2019-12-07 16:15:52,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:15:52,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:15:52,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:15:52,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:15:52,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:15:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:15:52,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:15:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 16:15:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:15:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:15:52,991 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:15:52,991 INFO L287 CfgBuilder]: Removed 15 assume(true) statements. [2019-12-07 16:15:52,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:15:52 BoogieIcfgContainer [2019-12-07 16:15:52,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:15:52,992 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:15:52,992 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:15:52,994 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:15:52,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:15:52,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:15:52" (1/3) ... [2019-12-07 16:15:52,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@360e5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:15:52, skipping insertion in model container [2019-12-07 16:15:52,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:15:52,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:15:52" (2/3) ... [2019-12-07 16:15:52,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@360e5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:15:52, skipping insertion in model container [2019-12-07 16:15:52,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:15:52,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:15:52" (3/3) ... [2019-12-07 16:15:52,997 INFO L371 chiAutomizerObserver]: Analyzing ICFG sep05-1.i [2019-12-07 16:15:53,025 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:15:53,025 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:15:53,025 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:15:53,026 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:15:53,026 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:15:53,026 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:15:53,026 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:15:53,026 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:15:53,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2019-12-07 16:15:53,051 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2019-12-07 16:15:53,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:53,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:53,055 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 16:15:53,055 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:15:53,055 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:15:53,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2019-12-07 16:15:53,057 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2019-12-07 16:15:53,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:53,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:53,058 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 16:15:53,058 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:15:53,063 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 28#L26-3true [2019-12-07 16:15:53,063 INFO L796 eck$LassoCheckResult]: Loop: 28#L26-3true assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 29#L26-2true main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 28#L26-3true [2019-12-07 16:15:53,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:53,068 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 16:15:53,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:53,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112570361] [2019-12-07 16:15:53,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:53,150 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:53,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:53,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2019-12-07 16:15:53,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:53,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278293835] [2019-12-07 16:15:53,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:53,162 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:53,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:53,163 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2019-12-07 16:15:53,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:53,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577331673] [2019-12-07 16:15:53,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:53,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:53,288 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:15:53,289 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:15:53,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:15:53,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:15:53,289 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:15:53,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:15:53,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:15:53,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration1_Lasso [2019-12-07 16:15:53,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:15:53,290 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:15:53,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:53,473 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:15:53,477 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,481 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 [2019-12-07 16:15:53,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,521 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:53,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:53,533 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,554 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,561 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:53,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:53,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,585 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,615 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:53,615 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:53,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:53,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:53,631 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,639 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,643 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:53,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:53,651 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:53,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:53,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:53,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:53,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:53,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:53,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:53,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:53,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:53,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:53,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:15:53,706 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-12-07 16:15:53,706 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:53,711 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:15:53,714 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 16:15:53,714 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:15:53,715 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1) = -8*ULTIMATE.start_main_~i~1 + 9*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1 Supporting invariants [] [2019-12-07 16:15:53,722 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 16:15:53,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 16:15:53,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:53,766 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:15:53,768 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:53,781 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:15:53,781 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:53,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:53,811 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 16:15:53,812 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states. Second operand 3 states. [2019-12-07 16:15:53,887 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states.. Second operand 3 states. Result 75 states and 110 transitions. Complement of second has 8 states. [2019-12-07 16:15:53,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 16:15:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:15:53,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2019-12-07 16:15:53,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 2 letters. Loop has 2 letters. [2019-12-07 16:15:53,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:15:53,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 16:15:53,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:15:53,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 2 letters. Loop has 4 letters. [2019-12-07 16:15:53,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:15:53,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 110 transitions. [2019-12-07 16:15:53,896 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:53,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 22 states and 30 transitions. [2019-12-07 16:15:53,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2019-12-07 16:15:53,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 16:15:53,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2019-12-07 16:15:53,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:53,901 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2019-12-07 16:15:53,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2019-12-07 16:15:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-07 16:15:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 16:15:53,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2019-12-07 16:15:53,921 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2019-12-07 16:15:53,921 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2019-12-07 16:15:53,921 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:15:53,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2019-12-07 16:15:53,922 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:53,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:53,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:53,923 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 16:15:53,923 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:53,923 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 159#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 160#L26-3 assume !(main_~i~1 < 5); 164#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 150#L7-3 [2019-12-07 16:15:53,923 INFO L796 eck$LassoCheckResult]: Loop: 150#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 156#L9 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 149#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 150#L7-3 [2019-12-07 16:15:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:53,923 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2019-12-07 16:15:53,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:53,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325081600] [2019-12-07 16:15:53,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:53,950 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325081600] [2019-12-07 16:15:53,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:15:53,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:15:53,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447802689] [2019-12-07 16:15:53,953 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:53,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:53,953 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2019-12-07 16:15:53,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:53,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254631696] [2019-12-07 16:15:53,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:53,970 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:54,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:54,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:15:54,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:15:54,030 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-12-07 16:15:54,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:54,039 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-12-07 16:15:54,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:15:54,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-12-07 16:15:54,041 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-12-07 16:15:54,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 16:15:54,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 16:15:54,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-12-07 16:15:54,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:54,042 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 16:15:54,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-12-07 16:15:54,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-12-07 16:15:54,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 16:15:54,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-12-07 16:15:54,044 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-12-07 16:15:54,044 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-12-07 16:15:54,044 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:15:54,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2019-12-07 16:15:54,045 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:54,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:54,045 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:15:54,045 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:54,046 INFO L794 eck$LassoCheckResult]: Stem: 214#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 209#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 210#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 216#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 217#L26-3 assume !(main_~i~1 < 5); 215#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 202#L7-3 [2019-12-07 16:15:54,046 INFO L796 eck$LassoCheckResult]: Loop: 202#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 207#L9 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 201#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 202#L7-3 [2019-12-07 16:15:54,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,046 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2019-12-07 16:15:54,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042108919] [2019-12-07 16:15:54,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:54,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:54,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042108919] [2019-12-07 16:15:54,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570434432] [2019-12-07 16:15:54,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:15:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:54,098 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:15:54,099 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:54,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:15:54,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-12-07 16:15:54,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859885936] [2019-12-07 16:15:54,105 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:54,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,106 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2019-12-07 16:15:54,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019993308] [2019-12-07 16:15:54,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,121 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:54,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:54,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:15:54,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:15:54,171 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 5 states. [2019-12-07 16:15:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:54,184 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-07 16:15:54,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:15:54,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2019-12-07 16:15:54,185 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 32 transitions. [2019-12-07 16:15:54,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 16:15:54,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 16:15:54,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2019-12-07 16:15:54,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:54,186 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-12-07 16:15:54,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2019-12-07 16:15:54,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-12-07 16:15:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 16:15:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-12-07 16:15:54,188 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-12-07 16:15:54,188 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-12-07 16:15:54,188 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 16:15:54,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2019-12-07 16:15:54,189 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:54,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:54,189 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2019-12-07 16:15:54,189 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:54,189 INFO L794 eck$LassoCheckResult]: Stem: 284#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 280#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 281#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 286#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 287#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 288#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 291#L26-3 assume !(main_~i~1 < 5); 285#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 271#L7-3 [2019-12-07 16:15:54,189 INFO L796 eck$LassoCheckResult]: Loop: 271#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 277#L9 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 270#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 271#L7-3 [2019-12-07 16:15:54,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,190 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2019-12-07 16:15:54,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826665252] [2019-12-07 16:15:54,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:54,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:54,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826665252] [2019-12-07 16:15:54,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403182895] [2019-12-07 16:15:54,213 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:15:54,237 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 16:15:54,237 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 16:15:54,238 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:15:54,238 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:54,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:15:54,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-12-07 16:15:54,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275382733] [2019-12-07 16:15:54,244 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:54,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,244 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2019-12-07 16:15:54,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503914941] [2019-12-07 16:15:54,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,257 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:54,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:54,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:15:54,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:15:54,303 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. cyclomatic complexity: 12 Second operand 6 states. [2019-12-07 16:15:54,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:54,318 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-12-07 16:15:54,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:15:54,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2019-12-07 16:15:54,320 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2019-12-07 16:15:54,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 16:15:54,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 16:15:54,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2019-12-07 16:15:54,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:54,321 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2019-12-07 16:15:54,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2019-12-07 16:15:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-12-07 16:15:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 16:15:54,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-12-07 16:15:54,324 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-12-07 16:15:54,324 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-12-07 16:15:54,324 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 16:15:54,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2019-12-07 16:15:54,325 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:54,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:54,325 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2019-12-07 16:15:54,325 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:54,326 INFO L794 eck$LassoCheckResult]: Stem: 363#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 359#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 360#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 367#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 368#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 369#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 374#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 373#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 372#L26-3 assume !(main_~i~1 < 5); 366#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 352#L7-3 [2019-12-07 16:15:54,326 INFO L796 eck$LassoCheckResult]: Loop: 352#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 358#L9 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 351#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 352#L7-3 [2019-12-07 16:15:54,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2019-12-07 16:15:54,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397251489] [2019-12-07 16:15:54,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:54,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397251489] [2019-12-07 16:15:54,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877673171] [2019-12-07 16:15:54,359 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:15:54,384 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 16:15:54,384 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 16:15:54,385 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:15:54,385 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:54,391 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:54,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:15:54,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-12-07 16:15:54,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145801895] [2019-12-07 16:15:54,392 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:54,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,392 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2019-12-07 16:15:54,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779792605] [2019-12-07 16:15:54,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,400 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:54,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:54,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 16:15:54,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:15:54,452 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2019-12-07 16:15:54,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:54,467 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2019-12-07 16:15:54,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:15:54,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2019-12-07 16:15:54,468 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2019-12-07 16:15:54,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 16:15:54,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 16:15:54,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2019-12-07 16:15:54,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:54,469 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2019-12-07 16:15:54,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2019-12-07 16:15:54,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-12-07 16:15:54,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 16:15:54,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-12-07 16:15:54,471 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-12-07 16:15:54,472 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-12-07 16:15:54,472 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 16:15:54,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2019-12-07 16:15:54,472 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:54,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:54,473 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2019-12-07 16:15:54,473 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:54,473 INFO L794 eck$LassoCheckResult]: Stem: 455#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 451#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 452#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 459#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 460#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 461#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 462#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 468#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 467#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 466#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 465#L26-3 assume !(main_~i~1 < 5); 458#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 444#L7-3 [2019-12-07 16:15:54,473 INFO L796 eck$LassoCheckResult]: Loop: 444#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 450#L9 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 443#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 444#L7-3 [2019-12-07 16:15:54,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,473 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2019-12-07 16:15:54,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903060087] [2019-12-07 16:15:54,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:54,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903060087] [2019-12-07 16:15:54,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172174042] [2019-12-07 16:15:54,513 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/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 [2019-12-07 16:15:54,542 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 16:15:54,542 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 16:15:54,543 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:15:54,544 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:54,551 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:54,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:15:54,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-12-07 16:15:54,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026514830] [2019-12-07 16:15:54,552 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:54,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,553 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 5 times [2019-12-07 16:15:54,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265390240] [2019-12-07 16:15:54,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,563 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:54,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:54,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:15:54,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:15:54,610 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. cyclomatic complexity: 12 Second operand 8 states. [2019-12-07 16:15:54,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:54,627 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2019-12-07 16:15:54,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:15:54,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2019-12-07 16:15:54,628 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2019-12-07 16:15:54,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 16:15:54,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 16:15:54,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2019-12-07 16:15:54,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:54,628 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-12-07 16:15:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2019-12-07 16:15:54,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 16:15:54,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 16:15:54,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-12-07 16:15:54,630 INFO L711 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-12-07 16:15:54,630 INFO L591 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-12-07 16:15:54,630 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 16:15:54,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2019-12-07 16:15:54,631 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-12-07 16:15:54,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:54,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:54,631 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2019-12-07 16:15:54,631 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:54,631 INFO L794 eck$LassoCheckResult]: Stem: 557#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 553#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 554#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 561#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 562#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 563#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 572#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 571#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 570#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 569#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 568#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 567#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 566#L26-3 assume !(main_~i~1 < 5); 560#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 546#L7-3 [2019-12-07 16:15:54,631 INFO L796 eck$LassoCheckResult]: Loop: 546#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 552#L9 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 545#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 546#L7-3 [2019-12-07 16:15:54,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2019-12-07 16:15:54,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106538059] [2019-12-07 16:15:54,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,649 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:54,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,649 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 6 times [2019-12-07 16:15:54,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,650 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589705779] [2019-12-07 16:15:54,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:54,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:54,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2019-12-07 16:15:54,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:54,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105483271] [2019-12-07 16:15:54,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:54,684 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:55,067 WARN L192 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 101 [2019-12-07 16:15:55,132 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:15:55,132 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:15:55,132 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:15:55,132 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:15:55,132 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:15:55,132 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,133 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:15:55,133 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:15:55,133 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration7_Lasso [2019-12-07 16:15:55,133 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:15:55,133 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:15:55,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:15:55,389 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:15:55,390 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,395 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,411 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,418 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:55,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:55,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,442 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,450 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:55,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:55,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,472 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 [2019-12-07 16:15:55,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,482 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:15:55,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:15:55,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:15:55,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:55,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:55,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,516 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:15:55,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:15:55,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:15:55,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:15:55,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:15:55,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:15:55,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:15:55,529 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:15:55,545 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-12-07 16:15:55,545 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:15:55,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:15:55,551 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 16:15:55,551 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:15:55,551 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sep_~i~0) = -2*ULTIMATE.start_sep_~i~0 + 9 Supporting invariants [] [2019-12-07 16:15:55,559 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 16:15:55,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:55,577 INFO L264 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:15:55,577 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:55,582 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:15:55,582 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:15:55,589 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 16:15:55,589 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12 Second operand 3 states. [2019-12-07 16:15:55,599 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 35 states and 46 transitions. Complement of second has 7 states. [2019-12-07 16:15:55,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 16:15:55,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:15:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-12-07 16:15:55,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2019-12-07 16:15:55,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:15:55,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2019-12-07 16:15:55,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:15:55,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 6 letters. [2019-12-07 16:15:55,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:15:55,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2019-12-07 16:15:55,602 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:55,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 31 states and 39 transitions. [2019-12-07 16:15:55,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-12-07 16:15:55,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-12-07 16:15:55,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 39 transitions. [2019-12-07 16:15:55,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:55,603 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-12-07 16:15:55,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 39 transitions. [2019-12-07 16:15:55,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 16:15:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 16:15:55,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2019-12-07 16:15:55,605 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-12-07 16:15:55,605 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-12-07 16:15:55,605 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 16:15:55,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2019-12-07 16:15:55,606 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:55,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:55,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:55,606 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:15:55,606 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:55,607 INFO L794 eck$LassoCheckResult]: Stem: 709#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 705#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 706#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 714#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 715#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 716#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 725#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 724#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 723#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 722#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 721#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 720#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 719#L26-3 assume !(main_~i~1 < 5); 712#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 713#L7-3 assume !(sep_~i~0 < 5); 717#L7-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 718#L14 main_#t~ret6 := sep_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 707#L7-8 [2019-12-07 16:15:55,607 INFO L796 eck$LassoCheckResult]: Loop: 707#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 700#L9-2 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 701#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 707#L7-8 [2019-12-07 16:15:55,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:55,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1638581187, now seen corresponding path program 1 times [2019-12-07 16:15:55,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:55,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767603575] [2019-12-07 16:15:55,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 16:15:55,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767603575] [2019-12-07 16:15:55,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:15:55,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:15:55,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94776005] [2019-12-07 16:15:55,632 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:55,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:55,632 INFO L82 PathProgramCache]: Analyzing trace with hash 74576, now seen corresponding path program 1 times [2019-12-07 16:15:55,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:55,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59484868] [2019-12-07 16:15:55,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:55,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:55,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:55,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:15:55,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:15:55,686 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-12-07 16:15:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:55,700 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-12-07 16:15:55,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:15:55,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2019-12-07 16:15:55,701 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:55,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 49 transitions. [2019-12-07 16:15:55,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-12-07 16:15:55,702 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-12-07 16:15:55,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2019-12-07 16:15:55,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:55,702 INFO L688 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-12-07 16:15:55,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2019-12-07 16:15:55,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2019-12-07 16:15:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 16:15:55,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2019-12-07 16:15:55,704 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2019-12-07 16:15:55,704 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2019-12-07 16:15:55,704 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 16:15:55,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2019-12-07 16:15:55,704 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:55,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:55,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:55,705 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:15:55,705 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:55,705 INFO L794 eck$LassoCheckResult]: Stem: 785#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 781#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 782#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 791#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 792#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 793#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 802#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 801#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 800#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 799#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 798#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 797#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 796#L26-3 assume !(main_~i~1 < 5); 789#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 790#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 780#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 774#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 775#L7-3 assume !(sep_~i~0 < 5); 794#L7-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 795#L14 main_#t~ret6 := sep_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 783#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 776#L9-2 [2019-12-07 16:15:55,705 INFO L796 eck$LassoCheckResult]: Loop: 776#L9-2 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 777#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 786#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 776#L9-2 [2019-12-07 16:15:55,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:55,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1567455174, now seen corresponding path program 1 times [2019-12-07 16:15:55,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:55,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265180743] [2019-12-07 16:15:55,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 16:15:55,733 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265180743] [2019-12-07 16:15:55,733 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979237527] [2019-12-07 16:15:55,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:15:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:55,765 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:15:55,766 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:55,771 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 16:15:55,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:15:55,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-12-07 16:15:55,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249601936] [2019-12-07 16:15:55,772 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:55,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:55,772 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 2 times [2019-12-07 16:15:55,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:55,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951435360] [2019-12-07 16:15:55,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:55,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:55,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:55,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:15:55,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:15:55,806 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand 5 states. [2019-12-07 16:15:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:55,827 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2019-12-07 16:15:55,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:15:55,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 61 transitions. [2019-12-07 16:15:55,828 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:55,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 61 transitions. [2019-12-07 16:15:55,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2019-12-07 16:15:55,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-12-07 16:15:55,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2019-12-07 16:15:55,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:55,829 INFO L688 BuchiCegarLoop]: Abstraction has 48 states and 61 transitions. [2019-12-07 16:15:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2019-12-07 16:15:55,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2019-12-07 16:15:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 16:15:55,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2019-12-07 16:15:55,831 INFO L711 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2019-12-07 16:15:55,831 INFO L591 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2019-12-07 16:15:55,831 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-12-07 16:15:55,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 47 transitions. [2019-12-07 16:15:55,831 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:55,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:55,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:55,832 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:15:55,832 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:55,832 INFO L794 eck$LassoCheckResult]: Stem: 937#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 932#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 933#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 940#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 941#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 942#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 956#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 955#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 954#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 953#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 952#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 951#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 950#L26-3 assume !(main_~i~1 < 5); 938#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 939#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 946#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 922#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 923#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 928#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 929#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 948#L7-3 assume !(sep_~i~0 < 5); 943#L7-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 944#L14 main_#t~ret6 := sep_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 945#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 949#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 934#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 930#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 924#L9-2 [2019-12-07 16:15:55,832 INFO L796 eck$LassoCheckResult]: Loop: 924#L9-2 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 925#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 947#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 924#L9-2 [2019-12-07 16:15:55,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:55,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1248848095, now seen corresponding path program 1 times [2019-12-07 16:15:55,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:55,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455154984] [2019-12-07 16:15:55,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:55,863 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-12-07 16:15:55,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455154984] [2019-12-07 16:15:55,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609058911] [2019-12-07 16:15:55,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:15:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:55,891 INFO L264 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:15:55,892 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-12-07 16:15:55,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:15:55,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-12-07 16:15:55,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037880156] [2019-12-07 16:15:55,899 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:55,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:55,899 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 3 times [2019-12-07 16:15:55,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:55,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148746102] [2019-12-07 16:15:55,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:55,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:55,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:55,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:15:55,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:15:55,932 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. cyclomatic complexity: 14 Second operand 6 states. [2019-12-07 16:15:55,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:55,963 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2019-12-07 16:15:55,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:15:55,963 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 73 transitions. [2019-12-07 16:15:55,964 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:55,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 57 states and 73 transitions. [2019-12-07 16:15:55,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2019-12-07 16:15:55,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2019-12-07 16:15:55,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 73 transitions. [2019-12-07 16:15:55,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:55,965 INFO L688 BuchiCegarLoop]: Abstraction has 57 states and 73 transitions. [2019-12-07 16:15:55,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 73 transitions. [2019-12-07 16:15:55,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2019-12-07 16:15:55,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 16:15:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2019-12-07 16:15:55,967 INFO L711 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2019-12-07 16:15:55,967 INFO L591 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2019-12-07 16:15:55,967 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-12-07 16:15:55,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2019-12-07 16:15:55,968 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:55,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:55,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:55,969 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:15:55,969 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:55,969 INFO L794 eck$LassoCheckResult]: Stem: 1116#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1112#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1113#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1123#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1124#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1125#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1138#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1137#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1136#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1135#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1134#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1133#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1132#L26-3 assume !(main_~i~1 < 5); 1121#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1122#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1129#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1139#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1142#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1143#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1103#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1104#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1110#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1111#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1131#L7-3 assume !(sep_~i~0 < 5); 1126#L7-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1127#L14 main_#t~ret6 := sep_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1128#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1144#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1117#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1118#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1140#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1141#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1114#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1106#L9-2 [2019-12-07 16:15:55,969 INFO L796 eck$LassoCheckResult]: Loop: 1106#L9-2 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 1107#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1130#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1106#L9-2 [2019-12-07 16:15:55,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:55,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1685621030, now seen corresponding path program 2 times [2019-12-07 16:15:55,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:55,969 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772043848] [2019-12-07 16:15:55,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-12-07 16:15:56,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772043848] [2019-12-07 16:15:56,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281775374] [2019-12-07 16:15:56,006 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:15:56,044 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 16:15:56,044 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 16:15:56,045 INFO L264 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:15:56,046 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:56,053 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-12-07 16:15:56,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:15:56,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-12-07 16:15:56,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657660660] [2019-12-07 16:15:56,053 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:56,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,053 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 4 times [2019-12-07 16:15:56,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064090620] [2019-12-07 16:15:56,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,058 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:56,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:56,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 16:15:56,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:15:56,085 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 16 Second operand 7 states. [2019-12-07 16:15:56,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:56,120 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2019-12-07 16:15:56,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:15:56,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 85 transitions. [2019-12-07 16:15:56,120 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:56,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 85 transitions. [2019-12-07 16:15:56,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2019-12-07 16:15:56,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2019-12-07 16:15:56,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 85 transitions. [2019-12-07 16:15:56,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:56,122 INFO L688 BuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2019-12-07 16:15:56,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 85 transitions. [2019-12-07 16:15:56,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 50. [2019-12-07 16:15:56,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-12-07 16:15:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2019-12-07 16:15:56,125 INFO L711 BuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2019-12-07 16:15:56,125 INFO L591 BuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2019-12-07 16:15:56,125 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-12-07 16:15:56,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 63 transitions. [2019-12-07 16:15:56,126 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:56,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:56,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:56,127 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:15:56,127 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:56,127 INFO L794 eck$LassoCheckResult]: Stem: 1334#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1329#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1330#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1337#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1338#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1339#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1357#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1356#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1355#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1354#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1353#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1352#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1351#L26-3 assume !(main_~i~1 < 5); 1335#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1336#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1343#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1366#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1344#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1326#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1319#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1320#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1365#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1364#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1363#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1349#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1350#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1348#L7-3 assume !(sep_~i~0 < 5); 1340#L7-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1341#L14 main_#t~ret6 := sep_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1342#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1362#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1331#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1327#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1322#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1323#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1361#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1360#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1359#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1358#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1346#L9-2 [2019-12-07 16:15:56,127 INFO L796 eck$LassoCheckResult]: Loop: 1346#L9-2 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 1347#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1345#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1346#L9-2 [2019-12-07 16:15:56,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,128 INFO L82 PathProgramCache]: Analyzing trace with hash -534676351, now seen corresponding path program 3 times [2019-12-07 16:15:56,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326957739] [2019-12-07 16:15:56,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-12-07 16:15:56,175 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326957739] [2019-12-07 16:15:56,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052813842] [2019-12-07 16:15:56,176 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:15:56,232 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-12-07 16:15:56,232 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 16:15:56,233 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:15:56,235 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:15:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-12-07 16:15:56,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:15:56,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-12-07 16:15:56,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375429969] [2019-12-07 16:15:56,244 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:15:56,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,244 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 5 times [2019-12-07 16:15:56,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426783708] [2019-12-07 16:15:56,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,249 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:56,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:56,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:15:56,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:15:56,277 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. cyclomatic complexity: 18 Second operand 8 states. [2019-12-07 16:15:56,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:56,315 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2019-12-07 16:15:56,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:15:56,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 88 transitions. [2019-12-07 16:15:56,317 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:56,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 69 states and 88 transitions. [2019-12-07 16:15:56,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2019-12-07 16:15:56,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2019-12-07 16:15:56,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 88 transitions. [2019-12-07 16:15:56,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:56,318 INFO L688 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2019-12-07 16:15:56,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 88 transitions. [2019-12-07 16:15:56,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2019-12-07 16:15:56,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 16:15:56,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2019-12-07 16:15:56,321 INFO L711 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2019-12-07 16:15:56,321 INFO L591 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2019-12-07 16:15:56,321 INFO L424 BuchiCegarLoop]: ======== Iteration 13============ [2019-12-07 16:15:56,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 71 transitions. [2019-12-07 16:15:56,321 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 16:15:56,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:56,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:56,322 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:15:56,322 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:15:56,322 INFO L794 eck$LassoCheckResult]: Stem: 1578#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1573#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1574#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1581#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1582#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1583#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1616#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1615#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1614#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1612#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1611#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1609#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1608#L26-3 assume !(main_~i~1 < 5); 1579#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1580#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1587#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1610#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1588#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1570#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1564#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1565#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1607#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1606#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1605#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1603#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1601#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1599#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1594#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1596#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1593#L7-3 assume !(sep_~i~0 < 5); 1584#L7-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1585#L14 main_#t~ret6 := sep_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1586#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1613#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1575#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1571#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1566#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1567#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1604#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1602#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1600#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1598#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1597#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1595#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1592#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1590#L9-2 [2019-12-07 16:15:56,322 INFO L796 eck$LassoCheckResult]: Loop: 1590#L9-2 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 1591#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1589#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1590#L9-2 [2019-12-07 16:15:56,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1616244090, now seen corresponding path program 4 times [2019-12-07 16:15:56,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016878692] [2019-12-07 16:15:56,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,413 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:56,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,413 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 6 times [2019-12-07 16:15:56,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811919667] [2019-12-07 16:15:56,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,418 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:56,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1350622481, now seen corresponding path program 1 times [2019-12-07 16:15:56,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390339674] [2019-12-07 16:15:56,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:15:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-12-07 16:15:56,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390339674] [2019-12-07 16:15:56,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:15:56,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 16:15:56,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555540507] [2019-12-07 16:15:56,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:15:56,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 16:15:56,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:15:56,545 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. cyclomatic complexity: 20 Second operand 10 states. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Exception during sending of exit command (exit): Broken pipe [2019-12-07 16:15:56,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:15:56,668 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2019-12-07 16:15:56,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 16:15:56,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 85 transitions. [2019-12-07 16:15:56,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 16:15:56,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 52 states and 63 transitions. [2019-12-07 16:15:56,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 16:15:56,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2019-12-07 16:15:56,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 63 transitions. [2019-12-07 16:15:56,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:15:56,670 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-12-07 16:15:56,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 63 transitions. [2019-12-07 16:15:56,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-07 16:15:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 16:15:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2019-12-07 16:15:56,672 INFO L711 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-12-07 16:15:56,672 INFO L591 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-12-07 16:15:56,672 INFO L424 BuchiCegarLoop]: ======== Iteration 14============ [2019-12-07 16:15:56,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 63 transitions. [2019-12-07 16:15:56,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 16:15:56,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:15:56,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:15:56,674 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:15:56,674 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:15:56,674 INFO L794 eck$LassoCheckResult]: Stem: 1726#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1721#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1722#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1729#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1730#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1731#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1764#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1763#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1762#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1761#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1760#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 1759#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 1758#L26-3 assume !(main_~i~1 < 5); 1727#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1728#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1719#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1713#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1714#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1757#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1755#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1753#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1751#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1749#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1747#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1745#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1743#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1741#L7-3 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1739#L9 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1737#L7-2 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1735#L7-3 assume !(sep_~i~0 < 5); 1732#L7-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1733#L14 main_#t~ret6 := sep_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1720#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1715#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1716#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1723#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1756#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1754#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1752#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1750#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1748#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1746#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1744#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1742#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1740#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1738#L9-2 assume !(0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2));havoc sep_#t~mem1;sep_#t~post3 := sep_~ret~0;sep_~ret~0 := sep_#t~post3 - 1;havoc sep_#t~post3; 1736#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 1734#L7-8 assume !(sep_~i~0 < 5); 1717#L7-9 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1718#L14-1 main_#t~ret9 := sep_#res;main_~ret2~0 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;main_~i~2 := 0; 1724#L35-3 [2019-12-07 16:15:56,674 INFO L796 eck$LassoCheckResult]: Loop: 1724#L35-3 assume !!(main_~i~2 < 4);call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem12, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem12; 1725#L35-2 main_#t~post11 := main_~i~2;main_~i~2 := 1 + main_#t~post11;havoc main_#t~post11; 1724#L35-3 [2019-12-07 16:15:56,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,675 INFO L82 PathProgramCache]: Analyzing trace with hash -866233935, now seen corresponding path program 1 times [2019-12-07 16:15:56,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010028830] [2019-12-07 16:15:56,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,776 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:56,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,777 INFO L82 PathProgramCache]: Analyzing trace with hash 3075, now seen corresponding path program 1 times [2019-12-07 16:15:56,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,777 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790736823] [2019-12-07 16:15:56,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,780 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:15:56,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:15:56,781 INFO L82 PathProgramCache]: Analyzing trace with hash 772846003, now seen corresponding path program 1 times [2019-12-07 16:15:56,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:15:56,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290596190] [2019-12-07 16:15:56,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:15:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:56,887 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:16:01,191 WARN L192 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 464 DAG size of output: 311 [2019-12-07 16:16:01,193 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-12-07 16:16:16,523 WARN L192 SmtUtils]: Spent 8.75 s on a formula simplification. DAG size of input: 637 DAG size of output: 127 [2019-12-07 16:16:16,526 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:16:16,526 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:16:16,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:16:16,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:16:16,526 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:16:16,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:16,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:16:16,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:16:16,526 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration14_Lasso [2019-12-07 16:16:16,526 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:16:16,526 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:16:16,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:16,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:16:17,184 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:16:17,184 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,186 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 [2019-12-07 16:16:17,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,189 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,214 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,242 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,261 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,273 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,285 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:16:17,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:16:17,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:16:17,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,316 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,322 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,345 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:16:17,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:16:17,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:16:17,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:16:17,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:16:17,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:16:17,361 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:16:17,370 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:16:17,385 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 16:16:17,385 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f368d60-4bfc-48fd-a9f7-dfc662f237dc/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:16:17,388 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:16:17,390 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 16:16:17,390 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:16:17,390 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~i~2) = 7*ULTIMATE.start_main_~i~1 - 10*ULTIMATE.start_main_~i~2 Supporting invariants [] [2019-12-07 16:16:17,459 INFO L297 tatePredicateManager]: 26 out of 27 supporting invariants were superfluous and have been removed [2019-12-07 16:16:17,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:16:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:16:17,500 INFO L264 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 16:16:17,502 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:16:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:16:17,727 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:16:17,727 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:16:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:16:17,738 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2019-12-07 16:16:17,739 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13 Second operand 9 states. [2019-12-07 16:16:17,808 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13. Second operand 9 states. Result 95 states and 118 transitions. Complement of second has 11 states. [2019-12-07 16:16:17,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:16:17,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 16:16:17,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 51 transitions. [2019-12-07 16:16:17,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 51 transitions. Stem has 50 letters. Loop has 2 letters. [2019-12-07 16:16:17,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:16:17,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 51 transitions. Stem has 52 letters. Loop has 2 letters. [2019-12-07 16:16:17,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:16:17,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 51 transitions. Stem has 50 letters. Loop has 4 letters. [2019-12-07 16:16:17,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:16:17,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 118 transitions. [2019-12-07 16:16:17,811 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:16:17,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 0 states and 0 transitions. [2019-12-07 16:16:17,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 16:16:17,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 16:16:17,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 16:16:17,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:16:17,811 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:16:17,811 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:16:17,811 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:16:17,811 INFO L424 BuchiCegarLoop]: ======== Iteration 15============ [2019-12-07 16:16:17,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:16:17,811 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:16:17,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 16:16:17,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:16:17 BoogieIcfgContainer [2019-12-07 16:16:17,815 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:16:17,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:16:17,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:16:17,816 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:16:17,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:15:52" (3/4) ... [2019-12-07 16:16:17,819 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:16:17,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:16:17,820 INFO L168 Benchmark]: Toolchain (without parser) took 25299.05 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 666.4 MB). Free memory was 940.4 MB in the beginning and 1.4 GB in the end (delta: -501.4 MB). Peak memory consumption was 164.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:16:17,820 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 957.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:16:17,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:16:17,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:16:17,821 INFO L168 Benchmark]: Boogie Preprocessor took 20.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:16:17,821 INFO L168 Benchmark]: RCFGBuilder took 215.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:16:17,822 INFO L168 Benchmark]: BuchiAutomizer took 24823.04 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 558.4 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -369.8 MB). Peak memory consumption was 188.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:16:17,822 INFO L168 Benchmark]: Witness Printer took 3.32 ms. Allocated memory is still 1.7 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:16:17,824 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 957.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 204.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 215.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 24823.04 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 558.4 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -369.8 MB). Peak memory consumption was 188.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.32 ms. Allocated memory is still 1.7 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (11 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -8 * i + 9 * unknown-#length-unknown[x] and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 9 and consists of 4 locations. One deterministic module has affine ranking function 7 * i + -10 * i and consists of 10 locations. 11 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 24.7s and 15 iterations. TraceHistogramMax:5. Analysis of lassos took 23.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 14. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 63 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 56 states and ocurred in iteration 12. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 323 SDtfs, 359 SDslu, 734 SDs, 0 SdLazy, 405 SolverSat, 95 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU10 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital247 mio100 ax100 hnf99 lsp93 ukn51 mio100 lsp56 div100 bol100 ite100 ukn100 eq170 hnf85 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...