./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/sep05-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 0.1.24-678e011 [2019-11-19 23:56:21,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:56:21,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:56:21,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:56:21,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:56:21,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:56:21,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:56:21,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:56:21,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:56:21,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:56:21,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:56:21,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:56:21,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:56:21,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:56:21,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:56:21,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:56:21,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:56:21,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:56:21,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:56:21,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:56:21,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:56:21,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:56:21,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:56:21,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:56:21,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:56:21,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:56:21,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:56:21,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:56:21,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:56:21,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:56:21,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:56:21,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:56:21,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:56:21,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:56:21,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:56:21,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:56:21,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:56:21,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:56:21,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:56:21,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:56:21,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:56:21,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 23:56:21,179 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:56:21,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:56:21,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:56:21,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:56:21,191 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:56:21,191 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 23:56:21,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 23:56:21,192 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 23:56:21,192 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 23:56:21,192 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 23:56:21,192 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 23:56:21,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:56:21,193 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:56:21,193 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:56:21,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:56:21,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:56:21,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:56:21,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 23:56:21,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 23:56:21,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 23:56:21,195 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:56:21,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:56:21,195 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 23:56:21,195 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:56:21,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 23:56:21,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:56:21,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:56:21,196 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 23:56:21,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:56:21,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:56:21,197 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 23:56:21,197 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 23:56:21,198 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_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:21,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:56:21,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:56:21,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:56:21,378 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:56:21,379 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:56:21,379 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/../../sv-benchmarks/c/reducercommutativity/sep05-1.i [2019-11-19 23:56:21,428 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/data/7adb74636/3521d0e366a74318be89ab77e3fd8030/FLAGa66cc864f [2019-11-19 23:56:21,782 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:56:21,782 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/sv-benchmarks/c/reducercommutativity/sep05-1.i [2019-11-19 23:56:21,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/data/7adb74636/3521d0e366a74318be89ab77e3fd8030/FLAGa66cc864f [2019-11-19 23:56:22,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/data/7adb74636/3521d0e366a74318be89ab77e3fd8030 [2019-11-19 23:56:22,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:56:22,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:56:22,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:56:22,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:56:22,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:56:22,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e8c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22, skipping insertion in model container [2019-11-19 23:56:22,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,196 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:56:22,213 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:56:22,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:56:22,418 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:56:22,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:56:22,458 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:56:22,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22 WrapperNode [2019-11-19 23:56:22,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:56:22,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:56:22,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:56:22,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:56:22,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:56:22,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:56:22,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:56:22,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:56:22,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... [2019-11-19 23:56:22,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:56:22,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:56:22,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:56:22,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:56:22,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:56:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:56:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:56:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 23:56:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:56:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:56:22,891 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:56:22,891 INFO L285 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-19 23:56:22,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:56:22 BoogieIcfgContainer [2019-11-19 23:56:22,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:56:22,893 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 23:56:22,893 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 23:56:22,896 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 23:56:22,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:56:22,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 11:56:22" (1/3) ... [2019-11-19 23:56:22,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c01a2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:56:22, skipping insertion in model container [2019-11-19 23:56:22,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:56:22,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:56:22" (2/3) ... [2019-11-19 23:56:22,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c01a2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:56:22, skipping insertion in model container [2019-11-19 23:56:22,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:56:22,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:56:22" (3/3) ... [2019-11-19 23:56:22,900 INFO L371 chiAutomizerObserver]: Analyzing ICFG sep05-1.i [2019-11-19 23:56:22,938 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 23:56:22,938 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 23:56:22,939 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 23:56:22,939 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:56:22,939 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:56:22,939 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 23:56:22,939 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:56:22,939 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 23:56:22,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2019-11-19 23:56:22,967 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2019-11-19 23:56:22,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:22,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:22,972 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 23:56:22,972 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 23:56:22,972 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 23:56:22,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2019-11-19 23:56:22,975 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2019-11-19 23:56:22,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:22,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:22,975 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 23:56:22,976 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 23:56:22,981 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 28#L26-3true [2019-11-19 23:56:22,981 INFO L796 eck$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 [2019-11-19 23:56:22,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:22,986 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-19 23:56:22,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:22,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008844617] [2019-11-19 23:56:22,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:23,098 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:23,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:23,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2019-11-19 23:56:23,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:23,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553031633] [2019-11-19 23:56:23,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:23,116 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:23,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:23,117 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2019-11-19 23:56:23,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:23,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667932845] [2019-11-19 23:56:23,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:23,150 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:23,351 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:56:23,352 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:56:23,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:56:23,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:56:23,352 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:56:23,352 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,352 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:56:23,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:56:23,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration1_Lasso [2019-11-19 23:56:23,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:56:23,353 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:56:23,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:23,703 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:56:23,710 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:23,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,805 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:23,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:23,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:23,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:56:23,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:23,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:23,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:23,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,901 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,937 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,946 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:23,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:56:23,950 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,970 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:23,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:23,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:23,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:23,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:23,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:23,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:23,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:23,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:23,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:24,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:24,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:24,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:24,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:24,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:24,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:24,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:24,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:24,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:24,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:24,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:24,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:24,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:24,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:24,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:24,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:24,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:24,025 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:24,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:24,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:24,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:24,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:24,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:24,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:24,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:56:24,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:24,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:24,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:24,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:24,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:24,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:24,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:24,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:56:24,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:24,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:24,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:24,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:24,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:24,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:24,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:24,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:24,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:24,101 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:24,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:24,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:24,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:24,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:24,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:24,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:24,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:24,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:24,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:24,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:24,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:24,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:24,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:24,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:24,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:24,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:24,133 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:24,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:24,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:24,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:24,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:24,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:24,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:24,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:24,160 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:56:24,213 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-19 23:56:24,214 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_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:24,222 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:24,225 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:56:24,226 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:56:24,226 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 [] [2019-11-19 23:56:24,240 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 23:56:24,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 23:56:24,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:24,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:56:24,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:24,334 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 23:56:24,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:24,377 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-19 23:56:24,378 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states. Second operand 3 states. [2019-11-19 23:56:24,485 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. [2019-11-19 23:56:24,486 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 [2019-11-19 23:56:24,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 23:56:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2019-11-19 23:56:24,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-19 23:56:24,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:56:24,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-19 23:56:24,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:56:24,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-19 23:56:24,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:56:24,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 110 transitions. [2019-11-19 23:56:24,496 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:24,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 22 states and 30 transitions. [2019-11-19 23:56:24,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2019-11-19 23:56:24,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-19 23:56:24,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2019-11-19 23:56:24,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:24,503 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2019-11-19 23:56:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2019-11-19 23:56:24,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-19 23:56:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 23:56:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2019-11-19 23:56:24,527 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2019-11-19 23:56:24,527 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2019-11-19 23:56:24,527 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 23:56:24,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2019-11-19 23:56:24,528 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:24,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:24,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:24,528 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-19 23:56:24,528 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:24,529 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 159#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 160#L26-3 assume !(main_~i~1 < 5); 164#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 150#L7-3 [2019-11-19 23:56:24,529 INFO L796 eck$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 [2019-11-19 23:56:24,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:24,529 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2019-11-19 23:56:24,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:24,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423103047] [2019-11-19 23:56:24,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:24,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423103047] [2019-11-19 23:56:24,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:56:24,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 23:56:24,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372803372] [2019-11-19 23:56:24,570 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:24,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:24,571 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2019-11-19 23:56:24,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:24,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194598817] [2019-11-19 23:56:24,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:24,595 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:24,747 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2019-11-19 23:56:24,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:24,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:56:24,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:56:24,752 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-19 23:56:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:24,770 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-19 23:56:24,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:56:24,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-19 23:56:24,773 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:24,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-19 23:56:24,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-19 23:56:24,774 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-19 23:56:24,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-19 23:56:24,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:24,775 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-19 23:56:24,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-19 23:56:24,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-19 23:56:24,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 23:56:24,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-11-19 23:56:24,784 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-11-19 23:56:24,784 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-11-19 23:56:24,784 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 23:56:24,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2019-11-19 23:56:24,785 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:24,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:24,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:24,788 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 23:56:24,788 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:24,788 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 [2019-11-19 23:56:24,788 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 [2019-11-19 23:56:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:24,789 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2019-11-19 23:56:24,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:24,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749236175] [2019-11-19 23:56:24,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:24,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:24,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749236175] [2019-11-19 23:56:24,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596114128] [2019-11-19 23:56:24,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:24,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 23:56:24,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:24,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:24,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:56:24,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-11-19 23:56:24,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079992416] [2019-11-19 23:56:24,894 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:24,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:24,894 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2019-11-19 23:56:24,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:24,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514971246] [2019-11-19 23:56:24,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:24,913 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:24,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:24,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:56:24,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:56:24,996 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 5 states. [2019-11-19 23:56:25,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:25,018 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-11-19 23:56:25,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 23:56:25,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2019-11-19 23:56:25,021 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:25,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 32 transitions. [2019-11-19 23:56:25,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-19 23:56:25,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-19 23:56:25,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2019-11-19 23:56:25,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:25,022 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-11-19 23:56:25,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2019-11-19 23:56:25,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-11-19 23:56:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-19 23:56:25,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-19 23:56:25,029 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-19 23:56:25,029 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-19 23:56:25,029 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 23:56:25,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2019-11-19 23:56:25,030 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:25,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:25,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:25,030 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2019-11-19 23:56:25,030 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:25,031 INFO L794 eck$LassoCheckResult]: Stem: 284#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 280#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 281#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 286#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 287#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 288#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 291#L26-3 assume !(main_~i~1 < 5); 285#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 271#L7-3 [2019-11-19 23:56:25,031 INFO L796 eck$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 [2019-11-19 23:56:25,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,031 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2019-11-19 23:56:25,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131939882] [2019-11-19 23:56:25,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:25,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131939882] [2019-11-19 23:56:25,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966198175] [2019-11-19 23:56:25,071 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:25,109 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-19 23:56:25,109 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 23:56:25,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:56:25,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:25,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:56:25,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-11-19 23:56:25,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359516739] [2019-11-19 23:56:25,121 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2019-11-19 23:56:25,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191418874] [2019-11-19 23:56:25,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,137 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:25,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:25,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 23:56:25,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-19 23:56:25,217 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. cyclomatic complexity: 12 Second operand 6 states. [2019-11-19 23:56:25,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:25,239 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-11-19 23:56:25,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:56:25,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2019-11-19 23:56:25,241 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:25,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2019-11-19 23:56:25,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-19 23:56:25,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-19 23:56:25,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2019-11-19 23:56:25,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:25,242 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2019-11-19 23:56:25,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2019-11-19 23:56:25,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-11-19 23:56:25,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-19 23:56:25,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-11-19 23:56:25,245 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-11-19 23:56:25,245 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-11-19 23:56:25,245 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 23:56:25,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2019-11-19 23:56:25,245 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:25,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:25,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:25,246 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2019-11-19 23:56:25,246 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:25,246 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 [2019-11-19 23:56:25,246 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 [2019-11-19 23:56:25,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2019-11-19 23:56:25,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378118790] [2019-11-19 23:56:25,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:25,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378118790] [2019-11-19 23:56:25,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770729316] [2019-11-19 23:56:25,292 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:25,331 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-19 23:56:25,331 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 23:56:25,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 23:56:25,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:25,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:56:25,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-11-19 23:56:25,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233648840] [2019-11-19 23:56:25,342 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:25,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,342 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2019-11-19 23:56:25,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254130064] [2019-11-19 23:56:25,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,355 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:25,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:25,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 23:56:25,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-19 23:56:25,450 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2019-11-19 23:56:25,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:25,478 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2019-11-19 23:56:25,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:56:25,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2019-11-19 23:56:25,479 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:25,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2019-11-19 23:56:25,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-19 23:56:25,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-19 23:56:25,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2019-11-19 23:56:25,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:25,480 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2019-11-19 23:56:25,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2019-11-19 23:56:25,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-11-19 23:56:25,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-19 23:56:25,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-11-19 23:56:25,483 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-19 23:56:25,483 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-19 23:56:25,483 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 23:56:25,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2019-11-19 23:56:25,484 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:25,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:25,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:25,484 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2019-11-19 23:56:25,484 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:25,485 INFO L794 eck$LassoCheckResult]: Stem: 455#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 451#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~post4, main_~i~1, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~2, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 452#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 459#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 460#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 461#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 462#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 468#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 467#L26-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet5, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet5; 466#L26-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 465#L26-3 assume !(main_~i~1 < 5); 458#L26-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem1, sep_#t~post2, sep_#t~post3, sep_#t~post0, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 444#L7-3 [2019-11-19 23:56:25,485 INFO L796 eck$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 [2019-11-19 23:56:25,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,485 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2019-11-19 23:56:25,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785541066] [2019-11-19 23:56:25,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:25,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785541066] [2019-11-19 23:56:25,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250252611] [2019-11-19 23:56:25,542 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:56:25,584 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-19 23:56:25,584 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 23:56:25,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 23:56:25,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:25,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:56:25,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-11-19 23:56:25,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101407370] [2019-11-19 23:56:25,595 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:25,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,595 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 5 times [2019-11-19 23:56:25,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728482863] [2019-11-19 23:56:25,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,618 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:25,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:25,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 23:56:25,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:56:25,692 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. cyclomatic complexity: 12 Second operand 8 states. [2019-11-19 23:56:25,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:25,722 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2019-11-19 23:56:25,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:56:25,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2019-11-19 23:56:25,726 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:25,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2019-11-19 23:56:25,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-19 23:56:25,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-19 23:56:25,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2019-11-19 23:56:25,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:25,728 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-19 23:56:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2019-11-19 23:56:25,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-19 23:56:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-19 23:56:25,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-11-19 23:56:25,730 INFO L711 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-19 23:56:25,730 INFO L591 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-19 23:56:25,730 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-19 23:56:25,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2019-11-19 23:56:25,731 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2019-11-19 23:56:25,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:25,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:25,732 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2019-11-19 23:56:25,732 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:25,732 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 [2019-11-19 23:56:25,732 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 [2019-11-19 23:56:25,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2019-11-19 23:56:25,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486139946] [2019-11-19 23:56:25,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,769 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:25,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,770 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 6 times [2019-11-19 23:56:25,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86102807] [2019-11-19 23:56:25,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:25,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2019-11-19 23:56:25,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:25,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308440052] [2019-11-19 23:56:25,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:25,835 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:26,357 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 101 [2019-11-19 23:56:26,460 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:56:26,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:56:26,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:56:26,460 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:56:26,460 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:56:26,460 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:26,460 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:56:26,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:56:26,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration7_Lasso [2019-11-19 23:56:26,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:56:26,461 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:56:26,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:26,908 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:56:26,908 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:26,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:26,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:26,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:26,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:26,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:26,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:26,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:26,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:26,931 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:26,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:26,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:26,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:26,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:26,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:26,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:26,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:26,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:26,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:26,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:26,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:26,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:26,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:26,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:26,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:26,951 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:26,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:26,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:26,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:26,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:26,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:26,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:26,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:26,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:26,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:26,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:26,962 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:26,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:26,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:26,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:26,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:26,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:26,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:26,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:26,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:26,980 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:26,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:26,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:26,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:26,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:26,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:26,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:26,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:56:27,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:27,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:27,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:27,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:27,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:27,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:27,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:27,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,039 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:27,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:27,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:27,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:27,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:27,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:27,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:27,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:27,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:27,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:27,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:27,078 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:27,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:27,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:27,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:27,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:27,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:27,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:27,094 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:27,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:56:27,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:27,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:27,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:27,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:27,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:27,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:27,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:27,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:56:27,207 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-19 23:56:27,207 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_386df49b-801d-4044-bf95-227eb05a2a97/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:56:27,213 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:27,215 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:56:27,215 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:56:27,215 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sep_~i~0) = -2*ULTIMATE.start_sep_~i~0 + 9 Supporting invariants [] [2019-11-19 23:56:27,236 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-19 23:56:27,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:27,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:56:27,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:27,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:56:27,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:56:27,316 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-19 23:56:27,316 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12 Second operand 3 states. [2019-11-19 23:56:27,330 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. [2019-11-19 23:56:27,331 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 [2019-11-19 23:56:27,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 23:56:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-19 23:56:27,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 23:56:27,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:56:27,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2019-11-19 23:56:27,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:56:27,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 6 letters. [2019-11-19 23:56:27,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:56:27,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2019-11-19 23:56:27,334 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:27,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 31 states and 39 transitions. [2019-11-19 23:56:27,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-11-19 23:56:27,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-11-19 23:56:27,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 39 transitions. [2019-11-19 23:56:27,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:27,335 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-11-19 23:56:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 39 transitions. [2019-11-19 23:56:27,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-19 23:56:27,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-19 23:56:27,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2019-11-19 23:56:27,338 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-11-19 23:56:27,338 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-11-19 23:56:27,338 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-19 23:56:27,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2019-11-19 23:56:27,338 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:27,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:27,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:27,339 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:56:27,339 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:27,340 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 [2019-11-19 23:56:27,340 INFO L796 eck$LassoCheckResult]: Loop: 707#L7-8 assume !!(sep_~i~0 < 5);call sep_#t~mem1 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 700#L9-2 assume 0 == (if sep_#t~mem1 < 0 && 0 != sep_#t~mem1 % 2 then sep_#t~mem1 % 2 - 2 else sep_#t~mem1 % 2);havoc sep_#t~mem1;sep_#t~post2 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post2;havoc sep_#t~post2; 701#L7-7 sep_#t~post0 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post0;havoc sep_#t~post0; 707#L7-8 [2019-11-19 23:56:27,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:27,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1638581187, now seen corresponding path program 1 times [2019-11-19 23:56:27,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:27,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210835224] [2019-11-19 23:56:27,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-19 23:56:27,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210835224] [2019-11-19 23:56:27,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:56:27,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 23:56:27,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138498891] [2019-11-19 23:56:27,366 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:27,366 INFO L82 PathProgramCache]: Analyzing trace with hash 74576, now seen corresponding path program 1 times [2019-11-19 23:56:27,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:27,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595462916] [2019-11-19 23:56:27,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:27,375 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:27,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:27,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:56:27,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:56:27,445 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-19 23:56:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:27,465 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-11-19 23:56:27,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:56:27,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2019-11-19 23:56:27,467 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:27,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 49 transitions. [2019-11-19 23:56:27,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-11-19 23:56:27,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-11-19 23:56:27,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2019-11-19 23:56:27,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:27,468 INFO L688 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-11-19 23:56:27,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2019-11-19 23:56:27,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2019-11-19 23:56:27,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-19 23:56:27,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2019-11-19 23:56:27,471 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2019-11-19 23:56:27,471 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2019-11-19 23:56:27,472 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-19 23:56:27,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2019-11-19 23:56:27,472 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:27,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:27,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:27,473 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:56:27,473 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:27,473 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 [2019-11-19 23:56:27,473 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 [2019-11-19 23:56:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:27,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1567455174, now seen corresponding path program 1 times [2019-11-19 23:56:27,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:27,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579677403] [2019-11-19 23:56:27,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-19 23:56:27,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579677403] [2019-11-19 23:56:27,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395866418] [2019-11-19 23:56:27,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:27,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 23:56:27,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-19 23:56:27,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:56:27,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-11-19 23:56:27,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266281078] [2019-11-19 23:56:27,585 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:27,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:27,585 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 2 times [2019-11-19 23:56:27,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:27,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158683214] [2019-11-19 23:56:27,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:27,594 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:27,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:27,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:56:27,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:56:27,637 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand 5 states. [2019-11-19 23:56:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:27,678 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2019-11-19 23:56:27,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 23:56:27,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 61 transitions. [2019-11-19 23:56:27,679 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:27,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 61 transitions. [2019-11-19 23:56:27,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2019-11-19 23:56:27,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-11-19 23:56:27,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2019-11-19 23:56:27,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:27,681 INFO L688 BuchiCegarLoop]: Abstraction has 48 states and 61 transitions. [2019-11-19 23:56:27,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2019-11-19 23:56:27,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2019-11-19 23:56:27,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-19 23:56:27,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2019-11-19 23:56:27,683 INFO L711 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2019-11-19 23:56:27,683 INFO L591 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2019-11-19 23:56:27,683 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-19 23:56:27,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 47 transitions. [2019-11-19 23:56:27,684 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:27,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:27,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:27,685 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:56:27,685 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:27,685 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 [2019-11-19 23:56:27,685 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 [2019-11-19 23:56:27,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:27,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1248848095, now seen corresponding path program 1 times [2019-11-19 23:56:27,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:27,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128237301] [2019-11-19 23:56:27,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:27,728 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-19 23:56:27,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128237301] [2019-11-19 23:56:27,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470868239] [2019-11-19 23:56:27,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:27,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:56:27,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-19 23:56:27,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:56:27,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-11-19 23:56:27,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174509242] [2019-11-19 23:56:27,813 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:27,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:27,813 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 3 times [2019-11-19 23:56:27,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:27,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138162050] [2019-11-19 23:56:27,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:27,821 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:27,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:27,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 23:56:27,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-19 23:56:27,884 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. cyclomatic complexity: 14 Second operand 6 states. [2019-11-19 23:56:27,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:27,939 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2019-11-19 23:56:27,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:56:27,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 73 transitions. [2019-11-19 23:56:27,940 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:27,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 57 states and 73 transitions. [2019-11-19 23:56:27,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2019-11-19 23:56:27,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2019-11-19 23:56:27,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 73 transitions. [2019-11-19 23:56:27,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:27,942 INFO L688 BuchiCegarLoop]: Abstraction has 57 states and 73 transitions. [2019-11-19 23:56:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 73 transitions. [2019-11-19 23:56:27,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2019-11-19 23:56:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-19 23:56:27,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2019-11-19 23:56:27,945 INFO L711 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2019-11-19 23:56:27,945 INFO L591 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2019-11-19 23:56:27,945 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-19 23:56:27,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2019-11-19 23:56:27,946 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:27,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:27,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:27,947 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:56:27,947 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:27,947 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 [2019-11-19 23:56:27,947 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 [2019-11-19 23:56:27,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:27,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1685621030, now seen corresponding path program 2 times [2019-11-19 23:56:27,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:27,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701800648] [2019-11-19 23:56:27,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-19 23:56:28,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701800648] [2019-11-19 23:56:28,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401451947] [2019-11-19 23:56:28,025 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:28,077 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-19 23:56:28,078 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 23:56:28,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 23:56:28,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-19 23:56:28,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:56:28,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-11-19 23:56:28,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685587224] [2019-11-19 23:56:28,093 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:28,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:28,093 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 4 times [2019-11-19 23:56:28,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:28,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34622199] [2019-11-19 23:56:28,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:28,101 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:28,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:28,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 23:56:28,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-19 23:56:28,139 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 16 Second operand 7 states. [2019-11-19 23:56:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:28,194 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2019-11-19 23:56:28,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:56:28,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 85 transitions. [2019-11-19 23:56:28,195 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:28,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 85 transitions. [2019-11-19 23:56:28,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2019-11-19 23:56:28,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2019-11-19 23:56:28,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 85 transitions. [2019-11-19 23:56:28,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:28,197 INFO L688 BuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2019-11-19 23:56:28,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 85 transitions. [2019-11-19 23:56:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 50. [2019-11-19 23:56:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-19 23:56:28,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2019-11-19 23:56:28,200 INFO L711 BuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2019-11-19 23:56:28,200 INFO L591 BuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2019-11-19 23:56:28,200 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-11-19 23:56:28,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 63 transitions. [2019-11-19 23:56:28,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:28,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:28,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:28,202 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:56:28,202 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:28,202 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 [2019-11-19 23:56:28,202 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 [2019-11-19 23:56:28,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:28,202 INFO L82 PathProgramCache]: Analyzing trace with hash -534676351, now seen corresponding path program 3 times [2019-11-19 23:56:28,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:28,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650078632] [2019-11-19 23:56:28,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-19 23:56:28,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650078632] [2019-11-19 23:56:28,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439729874] [2019-11-19 23:56:28,256 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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 [2019-11-19 23:56:28,319 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-19 23:56:28,319 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 23:56:28,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 23:56:28,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:56:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-19 23:56:28,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:56:28,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-11-19 23:56:28,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692692804] [2019-11-19 23:56:28,354 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:56:28,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:28,354 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 5 times [2019-11-19 23:56:28,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:28,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078357193] [2019-11-19 23:56:28,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:28,360 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:28,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:28,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 23:56:28,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:56:28,399 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. cyclomatic complexity: 18 Second operand 8 states. [2019-11-19 23:56:28,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:28,470 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2019-11-19 23:56:28,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:56:28,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 88 transitions. [2019-11-19 23:56:28,471 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:28,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 69 states and 88 transitions. [2019-11-19 23:56:28,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2019-11-19 23:56:28,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2019-11-19 23:56:28,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 88 transitions. [2019-11-19 23:56:28,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:28,473 INFO L688 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2019-11-19 23:56:28,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 88 transitions. [2019-11-19 23:56:28,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2019-11-19 23:56:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-19 23:56:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2019-11-19 23:56:28,476 INFO L711 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2019-11-19 23:56:28,476 INFO L591 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2019-11-19 23:56:28,476 INFO L424 BuchiCegarLoop]: ======== Iteration 13============ [2019-11-19 23:56:28,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 71 transitions. [2019-11-19 23:56:28,477 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 23:56:28,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:28,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:28,478 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:56:28,478 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:56:28,478 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 [2019-11-19 23:56:28,478 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 [2019-11-19 23:56:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:28,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1616244090, now seen corresponding path program 4 times [2019-11-19 23:56:28,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:28,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025837183] [2019-11-19 23:56:28,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:28,596 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:28,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:28,597 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 6 times [2019-11-19 23:56:28,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:28,597 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718703609] [2019-11-19 23:56:28,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:28,603 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:28,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1350622481, now seen corresponding path program 1 times [2019-11-19 23:56:28,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:28,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934666369] [2019-11-19 23:56:28,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:28,759 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-11-19 23:56:28,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934666369] [2019-11-19 23:56:28,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:56:28,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-19 23:56:28,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474702542] [2019-11-19 23:56:28,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:56:28,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-19 23:56:28,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-11-19 23:56:28,807 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. cyclomatic complexity: 20 Second operand 10 states. [2019-11-19 23:56:28,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:56:28,972 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2019-11-19 23:56:28,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-19 23:56:28,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 85 transitions. [2019-11-19 23:56:28,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 23:56:28,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 52 states and 63 transitions. [2019-11-19 23:56:28,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-11-19 23:56:28,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2019-11-19 23:56:28,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 63 transitions. [2019-11-19 23:56:28,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:56:28,975 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-11-19 23:56:28,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 63 transitions. [2019-11-19 23:56:28,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-19 23:56:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-19 23:56:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2019-11-19 23:56:28,978 INFO L711 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-11-19 23:56:28,978 INFO L591 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-11-19 23:56:28,978 INFO L424 BuchiCegarLoop]: ======== Iteration 14============ [2019-11-19 23:56:28,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 63 transitions. [2019-11-19 23:56:28,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 23:56:28,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:56:28,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:56:28,980 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:56:28,980 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 23:56:28,980 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 [2019-11-19 23:56:28,980 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 [2019-11-19 23:56:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash -866233935, now seen corresponding path program 1 times [2019-11-19 23:56:28,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:28,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443954006] [2019-11-19 23:56:28,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:29,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:29,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:29,213 INFO L82 PathProgramCache]: Analyzing trace with hash 3075, now seen corresponding path program 1 times [2019-11-19 23:56:29,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:29,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733006360] [2019-11-19 23:56:29,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:29,218 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:29,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:29,218 INFO L82 PathProgramCache]: Analyzing trace with hash 772846003, now seen corresponding path program 1 times [2019-11-19 23:56:29,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:56:29,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121630472] [2019-11-19 23:56:29,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:56:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:56:29,457 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:56:34,423 WARN L191 SmtUtils]: Spent 4.89 s on a formula simplification. DAG size of input: 464 DAG size of output: 311 [2019-11-19 23:56:34,426 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-19 23:56:57,946 WARN L191 SmtUtils]: Spent 13.01 s on a formula simplification. DAG size of input: 637 DAG size of output: 127 [2019-11-19 23:56:57,949 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:56:57,949 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:56:57,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:56:57,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:56:57,950 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:56:57,950 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:57,950 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:56:57,950 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:56:57,950 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration14_Lasso [2019-11-19 23:56:57,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:56:57,950 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:56:57,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:57,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:57,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:57,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:57,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:57,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,486 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-11-19 23:56:58,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:58,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:56:59,253 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:56:59,254 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,293 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,329 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 Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:56:59,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,426 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,426 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,452 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,464 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:56:59,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:56:59,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,475 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,518 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 [2019-11-19 23:56:59,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:56:59,529 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,549 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,561 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,584 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:56:59,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:56:59,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:56:59,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:56:59,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:56:59,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:56:59,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,617 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:56:59,663 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-19 23:56:59,663 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_386df49b-801d-4044-bf95-227eb05a2a97/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) [2019-11-19 23:56:59,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:56:59,671 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:56:59,671 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:56:59,671 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 [] [2019-11-19 23:56:59,803 INFO L297 tatePredicateManager]: 26 out of 27 supporting invariants were superfluous and have been removed [2019-11-19 23:56:59,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:56:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:56:59,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-19 23:56:59,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:57:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:57:00,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 23:57:00,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:57:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:57:00,412 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 [2019-11-19 23:57:00,413 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13 Second operand 9 states. [2019-11-19 23:57:00,547 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. [2019-11-19 23:57:00,548 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 [2019-11-19 23:57:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-19 23:57:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 51 transitions. [2019-11-19 23:57:00,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 51 transitions. Stem has 50 letters. Loop has 2 letters. [2019-11-19 23:57:00,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:57:00,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 51 transitions. Stem has 52 letters. Loop has 2 letters. [2019-11-19 23:57:00,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:57:00,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 51 transitions. Stem has 50 letters. Loop has 4 letters. [2019-11-19 23:57:00,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:57:00,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 118 transitions. [2019-11-19 23:57:00,553 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:57:00,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 0 states and 0 transitions. [2019-11-19 23:57:00,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 23:57:00,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 23:57:00,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 23:57:00,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:57:00,553 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:57:00,554 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:57:00,554 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:57:00,554 INFO L424 BuchiCegarLoop]: ======== Iteration 15============ [2019-11-19 23:57:00,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:57:00,554 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:57:00,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 23:57:00,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 11:57:00 BoogieIcfgContainer [2019-11-19 23:57:00,562 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 23:57:00,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:57:00,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:57:00,563 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:57:00,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:56:22" (3/4) ... [2019-11-19 23:57:00,567 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:57:00,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:57:00,569 INFO L168 Benchmark]: Toolchain (without parser) took 38386.47 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 752.4 MB). Free memory was 948.8 MB in the beginning and 1.3 GB in the end (delta: -377.4 MB). Peak memory consumption was 374.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:00,569 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:57:00,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:00,570 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:57:00,570 INFO L168 Benchmark]: Boogie Preprocessor took 26.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:00,571 INFO L168 Benchmark]: RCFGBuilder took 363.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:00,571 INFO L168 Benchmark]: BuchiAutomizer took 37669.12 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 609.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -217.9 MB). Peak memory consumption was 391.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:00,572 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 1.8 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:57:00,574 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 363.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37669.12 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 609.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -217.9 MB). Peak memory consumption was 391.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.18 ms. Allocated memory is still 1.8 GB. Free memory is still 1.3 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 37.6s and 15 iterations. TraceHistogramMax:5. Analysis of lassos took 35.8s. Construction of modules took 0.4s. Büchi inclusion checks took 1.1s. 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, 0.4s 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: 18ms 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...