./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a96be28be4b50f026536d78db5ba85eeb0ae4413 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:16:37,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:16:37,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:16:37,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:16:37,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:16:37,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:16:37,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:16:37,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:16:37,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:16:37,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:16:37,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:16:37,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:16:37,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:16:37,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:16:37,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:16:37,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:16:37,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:16:37,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:16:37,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:16:37,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:16:37,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:16:37,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:16:37,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:16:37,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:16:37,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:16:37,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:16:37,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:16:37,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:16:37,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:16:37,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:16:37,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:16:37,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:16:37,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:16:37,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:16:37,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:16:37,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:16:37,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:16:37,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:16:37,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:16:37,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:16:37,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:16:37,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 15:16:37,944 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:16:37,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:16:37,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:16:37,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:16:37,945 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:16:37,945 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 15:16:37,945 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 15:16:37,946 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 15:16:37,946 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 15:16:37,946 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 15:16:37,946 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 15:16:37,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:16:37,946 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:16:37,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:16:37,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:16:37,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 15:16:37,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 15:16:37,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 15:16:37,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:16:37,947 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 15:16:37,948 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:16:37,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 15:16:37,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:16:37,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:16:37,948 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 15:16:37,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:16:37,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:16:37,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:16:37,948 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 15:16:37,949 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 15:16:37,949 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_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a96be28be4b50f026536d78db5ba85eeb0ae4413 [2019-12-07 15:16:38,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:16:38,066 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:16:38,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:16:38,070 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:16:38,070 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:16:38,071 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2019-12-07 15:16:38,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/data/c33c677c4/08b16d964c254a69bc6fc3f473e0025d/FLAGdbf382256 [2019-12-07 15:16:38,481 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:16:38,481 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2019-12-07 15:16:38,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/data/c33c677c4/08b16d964c254a69bc6fc3f473e0025d/FLAGdbf382256 [2019-12-07 15:16:38,885 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/data/c33c677c4/08b16d964c254a69bc6fc3f473e0025d [2019-12-07 15:16:38,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:16:38,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:16:38,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:16:38,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:16:38,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:16:38,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:16:38" (1/1) ... [2019-12-07 15:16:38,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:38, skipping insertion in model container [2019-12-07 15:16:38,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:16:38" (1/1) ... [2019-12-07 15:16:38,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:16:38,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:16:39,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:16:39,013 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:16:39,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:16:39,069 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:16:39,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39 WrapperNode [2019-12-07 15:16:39,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:16:39,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:16:39,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:16:39,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:16:39,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:16:39,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:16:39,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:16:39,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:16:39,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... [2019-12-07 15:16:39,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:16:39,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:16:39,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:16:39,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:16:39,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:16:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-12-07 15:16:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-12-07 15:16:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 15:16:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:16:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:16:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:16:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:16:39,257 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:16:39,257 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 15:16:39,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:16:39 BoogieIcfgContainer [2019-12-07 15:16:39,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:16:39,258 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 15:16:39,258 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 15:16:39,260 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 15:16:39,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:16:39,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 03:16:38" (1/3) ... [2019-12-07 15:16:39,262 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b0557e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:16:39, skipping insertion in model container [2019-12-07 15:16:39,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:16:39,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:16:39" (2/3) ... [2019-12-07 15:16:39,262 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b0557e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:16:39, skipping insertion in model container [2019-12-07 15:16:39,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:16:39,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:16:39" (3/3) ... [2019-12-07 15:16:39,263 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex3.i [2019-12-07 15:16:39,291 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 15:16:39,292 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 15:16:39,292 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 15:16:39,292 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:16:39,292 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:16:39,292 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 15:16:39,292 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:16:39,292 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 15:16:39,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 15:16:39,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 15:16:39,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:16:39,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:16:39,321 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 15:16:39,321 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:39,322 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 15:16:39,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 15:16:39,323 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 15:16:39,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:16:39,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:16:39,323 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 15:16:39,323 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:39,328 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 5#L20-2true [2019-12-07 15:16:39,329 INFO L796 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 13#L23true call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 4#recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 9#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 15#recFINALtrue assume true; 12#recEXITtrue >#30#return; 11#L23-1true main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 5#L20-2true [2019-12-07 15:16:39,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:39,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2019-12-07 15:16:39,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:39,339 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425801094] [2019-12-07 15:16:39,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:39,408 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:39,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:39,409 INFO L82 PathProgramCache]: Analyzing trace with hash -2039113776, now seen corresponding path program 1 times [2019-12-07 15:16:39,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:39,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413015070] [2019-12-07 15:16:39,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:39,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:39,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:39,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1009969970, now seen corresponding path program 1 times [2019-12-07 15:16:39,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:39,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712322646] [2019-12-07 15:16:39,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:39,475 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:39,702 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-12-07 15:16:39,755 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:16:39,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:16:39,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:16:39,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:16:39,756 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:16:39,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:39,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:16:39,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:16:39,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration1_Lasso [2019-12-07 15:16:39,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:16:39,757 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:16:39,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:39,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:39,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:39,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:39,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:39,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:39,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:39,953 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:16:39,956 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:39,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:39,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:39,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:39,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:39,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:39,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:39,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:39,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:39,966 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:39,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:39,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:39,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:39,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:39,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:39,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:39,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:39,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:39,973 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:39,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:39,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:39,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:39,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:39,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:39,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:39,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:39,984 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:39,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:39,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:39,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:39,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:39,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:39,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:39,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:39,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:39,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:39,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:39,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:39,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:39,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:39,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:39,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:39,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:39,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:40,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:40,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:40,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:40,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:40,005 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 15:16:40,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:40,015 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-12-07 15:16:40,015 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 15:16:40,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:40,034 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 [2019-12-07 15:16:40,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:40,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:40,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:40,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:40,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:40,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:40,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:40,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:40,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:40,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:40,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:40,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:40,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:40,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:40,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:40,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:40,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:40,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:40,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:40,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:40,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:40,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:40,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:40,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:40,058 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:16:40,067 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 15:16:40,067 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:40,071 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:16:40,071 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 15:16:40,072 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:16:40,072 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 15:16:40,075 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 15:16:40,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:40,100 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:16:40,101 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:40,125 INFO L264 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:16:40,126 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:40,192 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:40,192 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:40,197 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:40,197 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:40,197 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-12-07 15:16:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:40,230 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2019-12-07 15:16:40,231 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 7 states. [2019-12-07 15:16:40,317 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 7 states. Result 63 states and 77 transitions. Complement of second has 22 states. [2019-12-07 15:16:40,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2019-12-07 15:16:40,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 15:16:40,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 22 transitions. [2019-12-07 15:16:40,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 2 letters. Loop has 7 letters. [2019-12-07 15:16:40,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:40,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 9 letters. Loop has 7 letters. [2019-12-07 15:16:40,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:40,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 2 letters. Loop has 14 letters. [2019-12-07 15:16:40,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:40,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 77 transitions. [2019-12-07 15:16:40,327 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 15:16:40,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 35 states and 42 transitions. [2019-12-07 15:16:40,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 15:16:40,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-12-07 15:16:40,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 42 transitions. [2019-12-07 15:16:40,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:16:40,335 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2019-12-07 15:16:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 42 transitions. [2019-12-07 15:16:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2019-12-07 15:16:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 15:16:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-12-07 15:16:40,359 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-12-07 15:16:40,359 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-12-07 15:16:40,359 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 15:16:40,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 38 transitions. [2019-12-07 15:16:40,360 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 15:16:40,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:16:40,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:16:40,361 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:40,361 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 15:16:40,362 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 161#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 162#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 174#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 175#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 185#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 156#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 164#recENTRY [2019-12-07 15:16:40,362 INFO L796 eck$LassoCheckResult]: Loop: 164#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 154#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 155#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 164#recENTRY [2019-12-07 15:16:40,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:40,362 INFO L82 PathProgramCache]: Analyzing trace with hash 557607690, now seen corresponding path program 1 times [2019-12-07 15:16:40,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:40,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21728369] [2019-12-07 15:16:40,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:40,396 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:40,397 INFO L82 PathProgramCache]: Analyzing trace with hash 29942, now seen corresponding path program 1 times [2019-12-07 15:16:40,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:40,397 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662225184] [2019-12-07 15:16:40,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:40,409 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:40,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:40,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1242807987, now seen corresponding path program 2 times [2019-12-07 15:16:40,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:40,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160534664] [2019-12-07 15:16:40,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:40,437 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:40,830 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:16:40,830 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:16:40,830 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:16:40,830 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:16:40,830 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:16:40,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:40,830 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:16:40,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:16:40,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration2_Lasso [2019-12-07 15:16:40,831 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:16:40,831 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:16:40,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:40,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:41,046 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:16:41,046 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,049 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 [2019-12-07 15:16:41,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:41,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:41,094 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,101 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,117 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,133 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,140 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:41,140 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:41,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,173 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,187 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:41,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:41,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:41,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:41,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:41,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:41,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:41,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,256 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-12-07 15:16:41,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,257 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-12-07 15:16:41,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:41,261 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:41,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:41,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:41,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:41,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:41,269 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:41,269 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:41,274 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:16:41,284 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-12-07 15:16:41,284 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:41,287 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:16:41,289 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 15:16:41,289 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:16:41,289 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select old(#memory_int) rec_#in~p.base) rec_#in~p.offset)_1) = 2*v_rep(select (select old(#memory_int) rec_#in~p.base) rec_#in~p.offset)_1 + 1 Supporting invariants [-1*v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_1 + 1*v_rep(select (select old(#memory_int) rec_#in~p.base) rec_#in~p.offset)_1 >= 0] [2019-12-07 15:16:41,294 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-12-07 15:16:41,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 15:16:41,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:41,338 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:16:41,339 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:41,346 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 18 conjunts are in the unsatisfiable core [2019-12-07 15:16:41,347 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:41,351 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-12-07 15:16:41,352 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:41,355 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:41,355 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:41,355 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-12-07 15:16:41,371 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-12-07 15:16:41,372 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:41,375 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:41,375 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:41,376 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:23 [2019-12-07 15:16:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:41,387 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 15:16:41,387 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-12-07 15:16:41,463 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 47 states and 56 transitions. Complement of second has 17 states. [2019-12-07 15:16:41,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 15:16:41,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 15:16:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2019-12-07 15:16:41,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2019-12-07 15:16:41,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:41,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2019-12-07 15:16:41,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:41,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2019-12-07 15:16:41,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:41,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 56 transitions. [2019-12-07 15:16:41,467 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 15:16:41,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 50 transitions. [2019-12-07 15:16:41,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 15:16:41,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-12-07 15:16:41,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 50 transitions. [2019-12-07 15:16:41,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:16:41,469 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 50 transitions. [2019-12-07 15:16:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 50 transitions. [2019-12-07 15:16:41,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2019-12-07 15:16:41,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 15:16:41,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2019-12-07 15:16:41,473 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2019-12-07 15:16:41,473 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2019-12-07 15:16:41,473 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 15:16:41,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 46 transitions. [2019-12-07 15:16:41,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 15:16:41,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:16:41,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:16:41,475 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:41,475 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:41,475 INFO L794 eck$LassoCheckResult]: Stem: 326#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 319#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 320#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 338#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 348#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 347#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 318#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 323#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 324#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 352#recFINAL assume true; 331#recEXIT >#28#return; 332#L15-1 #res := #t~ret5;havoc #t~ret5; 346#recFINAL assume true; 341#recEXIT >#30#return; 327#L23-1 [2019-12-07 15:16:41,475 INFO L796 eck$LassoCheckResult]: Loop: 327#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 328#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 335#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 336#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 343#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 345#recFINAL assume true; 350#recEXIT >#30#return; 327#L23-1 [2019-12-07 15:16:41,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:41,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1969157627, now seen corresponding path program 1 times [2019-12-07 15:16:41,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:41,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650579418] [2019-12-07 15:16:41,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:41,497 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:41,497 INFO L82 PathProgramCache]: Analyzing trace with hash -523709736, now seen corresponding path program 2 times [2019-12-07 15:16:41,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:41,497 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535608662] [2019-12-07 15:16:41,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:41,510 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:41,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:41,511 INFO L82 PathProgramCache]: Analyzing trace with hash 931270558, now seen corresponding path program 1 times [2019-12-07 15:16:41,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:41,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575088461] [2019-12-07 15:16:41,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:41,539 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:42,057 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-12-07 15:16:42,111 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:16:42,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:16:42,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:16:42,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:16:42,111 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:16:42,111 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:42,111 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:16:42,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:16:42,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration3_Lasso [2019-12-07 15:16:42,112 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:16:42,112 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:16:42,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:42,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:42,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:42,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:42,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:42,403 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:16:42,403 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:42,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:42,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:42,407 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-12-07 15:16:42,407 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 15:16:42,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:42,415 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2019-12-07 15:16:42,415 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 15:16:42,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:42,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:42,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:42,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:42,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:42,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:42,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:42,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:42,448 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:42,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:42,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:42,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:42,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:42,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:42,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:42,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:42,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:42,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:42,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:42,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:42,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:42,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:42,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:42,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:42,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:42,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:42,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:42,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:42,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:42,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:42,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:42,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:42,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:42,483 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 [2019-12-07 15:16:42,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:42,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:42,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:42,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:42,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:42,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:42,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:16:42,504 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 15:16:42,504 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:42,506 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:16:42,508 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:16:42,509 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:16:42,509 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~ret9, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_#t~ret9 + 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 15:16:42,516 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 15:16:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:42,546 INFO L264 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 15:16:42,547 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:42,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:42,569 INFO L264 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:16:42,570 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:42,608 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:42,609 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:42,612 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:42,612 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:42,612 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-12-07 15:16:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:42,621 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2019-12-07 15:16:42,621 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 11 Second operand 8 states. [2019-12-07 15:16:42,682 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 11. Second operand 8 states. Result 130 states and 152 transitions. Complement of second has 21 states. [2019-12-07 15:16:42,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2019-12-07 15:16:42,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 15:16:42,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2019-12-07 15:16:42,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 14 letters. Loop has 7 letters. [2019-12-07 15:16:42,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:42,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-12-07 15:16:42,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:42,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 14 letters. Loop has 14 letters. [2019-12-07 15:16:42,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:42,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 152 transitions. [2019-12-07 15:16:42,687 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 15:16:42,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 90 states and 105 transitions. [2019-12-07 15:16:42,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2019-12-07 15:16:42,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2019-12-07 15:16:42,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 105 transitions. [2019-12-07 15:16:42,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:16:42,689 INFO L688 BuchiCegarLoop]: Abstraction has 90 states and 105 transitions. [2019-12-07 15:16:42,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 105 transitions. [2019-12-07 15:16:42,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2019-12-07 15:16:42,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-12-07 15:16:42,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2019-12-07 15:16:42,696 INFO L711 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2019-12-07 15:16:42,696 INFO L591 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2019-12-07 15:16:42,696 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 15:16:42,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 96 transitions. [2019-12-07 15:16:42,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 15:16:42,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:16:42,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:16:42,698 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:42,698 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 15:16:42,699 INFO L794 eck$LassoCheckResult]: Stem: 621#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 612#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 613#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 642#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 643#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 648#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 638#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 647#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 654#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 655#recFINAL assume true; 646#recEXIT >#28#return; 645#L15-1 #res := #t~ret5;havoc #t~ret5; 644#recFINAL assume true; 641#recEXIT >#30#return; 640#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 626#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 632#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 633#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 686#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 616#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 618#recENTRY [2019-12-07 15:16:42,699 INFO L796 eck$LassoCheckResult]: Loop: 618#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 619#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 615#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 618#recENTRY [2019-12-07 15:16:42,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:42,699 INFO L82 PathProgramCache]: Analyzing trace with hash -801242957, now seen corresponding path program 2 times [2019-12-07 15:16:42,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:42,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190215976] [2019-12-07 15:16:42,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:42,732 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:42,732 INFO L82 PathProgramCache]: Analyzing trace with hash 29942, now seen corresponding path program 2 times [2019-12-07 15:16:42,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:42,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380423713] [2019-12-07 15:16:42,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:42,739 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:42,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:42,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1599299332, now seen corresponding path program 3 times [2019-12-07 15:16:42,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:42,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31970919] [2019-12-07 15:16:42,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:42,769 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:43,381 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 116 [2019-12-07 15:16:43,714 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-12-07 15:16:43,767 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:16:43,767 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:16:43,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:16:43,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:16:43,768 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:16:43,768 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:43,768 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:16:43,768 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:16:43,768 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration4_Lasso [2019-12-07 15:16:43,768 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:16:43,768 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:16:43,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:43,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:44,053 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:16:44,053 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:44,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:44,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:44,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:44,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,062 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 [2019-12-07 15:16:44,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:44,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:44,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:44,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:44,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:44,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:44,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:44,071 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:44,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:44,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:44,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:44,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:44,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:44,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:44,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:44,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:44,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:44,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:44,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:44,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:44,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:44,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:44,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:44,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:44,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:44,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:44,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:44,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:44,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:44,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:44,124 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:16:44,130 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-12-07 15:16:44,130 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:44,132 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:16:44,134 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:16:44,134 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:16:44,134 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_2) = 2*v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_2 + 1 Supporting invariants [] [2019-12-07 15:16:44,138 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 15:16:44,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 15:16:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:44,167 INFO L264 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:16:44,169 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:44,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:44,190 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 15:16:44,191 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:44,202 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-12-07 15:16:44,203 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:44,207 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:44,208 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:44,208 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-12-07 15:16:44,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:44,221 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-12-07 15:16:44,221 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-12-07 15:16:44,280 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 106 states and 124 transitions. Complement of second has 17 states. [2019-12-07 15:16:44,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 15:16:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 15:16:44,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2019-12-07 15:16:44,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2019-12-07 15:16:44,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:44,281 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:16:44,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:44,310 INFO L264 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:16:44,311 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:44,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:44,330 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 15:16:44,330 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:44,341 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-12-07 15:16:44,342 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:44,345 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:44,345 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:44,345 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-12-07 15:16:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:44,354 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2019-12-07 15:16:44,354 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-12-07 15:16:44,412 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 106 states and 124 transitions. Complement of second has 17 states. [2019-12-07 15:16:44,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 15:16:44,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 15:16:44,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2019-12-07 15:16:44,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2019-12-07 15:16:44,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:44,414 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:16:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:44,446 INFO L264 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:16:44,447 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:44,458 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:44,465 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 15:16:44,466 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:44,478 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-12-07 15:16:44,478 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:44,481 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:44,481 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:44,482 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-12-07 15:16:44,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:44,490 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-12-07 15:16:44,490 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-12-07 15:16:44,552 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 154 states and 179 transitions. Complement of second has 19 states. [2019-12-07 15:16:44,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 15:16:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 15:16:44,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2019-12-07 15:16:44,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 20 letters. Loop has 3 letters. [2019-12-07 15:16:44,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:44,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 23 letters. Loop has 3 letters. [2019-12-07 15:16:44,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:44,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 20 letters. Loop has 6 letters. [2019-12-07 15:16:44,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:44,555 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 179 transitions. [2019-12-07 15:16:44,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 15:16:44,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 110 states and 135 transitions. [2019-12-07 15:16:44,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2019-12-07 15:16:44,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2019-12-07 15:16:44,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 135 transitions. [2019-12-07 15:16:44,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:16:44,563 INFO L688 BuchiCegarLoop]: Abstraction has 110 states and 135 transitions. [2019-12-07 15:16:44,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 135 transitions. [2019-12-07 15:16:44,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 74. [2019-12-07 15:16:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 15:16:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2019-12-07 15:16:44,571 INFO L711 BuchiCegarLoop]: Abstraction has 74 states and 87 transitions. [2019-12-07 15:16:44,571 INFO L591 BuchiCegarLoop]: Abstraction has 74 states and 87 transitions. [2019-12-07 15:16:44,571 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 15:16:44,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 87 transitions. [2019-12-07 15:16:44,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 15:16:44,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:16:44,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:16:44,573 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:44,573 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:44,574 INFO L794 eck$LassoCheckResult]: Stem: 1373#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1365#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 1366#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1381#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1384#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1389#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1385#recFINAL assume true; 1380#recEXIT >#30#return; 1376#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 1378#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1370#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1369#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1371#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 1364#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 1386#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1433#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1432#recFINAL assume true; 1430#recEXIT >#28#return; 1413#L15-1 #res := #t~ret5;havoc #t~ret5; 1408#recFINAL assume true; 1390#recEXIT >#30#return; 1374#L23-1 [2019-12-07 15:16:44,574 INFO L796 eck$LassoCheckResult]: Loop: 1374#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 1375#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1410#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1414#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1409#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1411#recFINAL assume true; 1415#recEXIT >#30#return; 1374#L23-1 [2019-12-07 15:16:44,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:44,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1572162950, now seen corresponding path program 4 times [2019-12-07 15:16:44,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:44,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304338223] [2019-12-07 15:16:44,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:44,592 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:44,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:44,593 INFO L82 PathProgramCache]: Analyzing trace with hash -523709736, now seen corresponding path program 3 times [2019-12-07 15:16:44,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:44,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297429540] [2019-12-07 15:16:44,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:44,600 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:44,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:44,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1341076915, now seen corresponding path program 5 times [2019-12-07 15:16:44,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:44,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054526815] [2019-12-07 15:16:44,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:44,623 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:45,497 WARN L192 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 134 [2019-12-07 15:16:45,555 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:16:45,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:16:45,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:16:45,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:16:45,555 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:16:45,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:45,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:16:45,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:16:45,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration5_Lasso [2019-12-07 15:16:45,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:16:45,556 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:16:45,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:45,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:45,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:45,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:45,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:45,919 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:16:45,919 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:45,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:45,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:45,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:45,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:45,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:45,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:45,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:45,925 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:45,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:45,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:45,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:45,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:45,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:45,930 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:45,930 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:45,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:45,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:45,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:45,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:45,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:45,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:45,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:45,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:45,946 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:16:45,955 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 15:16:45,955 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:45,957 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:16:45,960 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 15:16:45,960 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:16:45,960 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [-1*ULTIMATE.start_main_#t~ret9 - 1 >= 0] [2019-12-07 15:16:45,970 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-12-07 15:16:45,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:46,002 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 15:16:46,003 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:46,033 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,033 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,035 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,035 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,045 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:46,045 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-12-07 15:16:46,045 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-12-07 15:16:46,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:46,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:46,085 INFO L264 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 15:16:46,085 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:46,124 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,125 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,127 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:46,127 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,127 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-12-07 15:16:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:46,140 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 6 loop predicates [2019-12-07 15:16:46,140 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-12-07 15:16:46,306 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 117 states and 139 transitions. Complement of second has 28 states. [2019-12-07 15:16:46,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-12-07 15:16:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 15:16:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2019-12-07 15:16:46,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-12-07 15:16:46,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:46,307 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:16:46,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:46,342 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 15:16:46,343 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:46,379 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,379 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,381 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,381 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,388 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:46,389 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-12-07 15:16:46,389 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-12-07 15:16:46,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:46,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:46,429 INFO L264 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 15:16:46,430 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:46,479 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,479 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,482 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:46,483 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,483 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-12-07 15:16:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:46,495 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 6 loop predicates [2019-12-07 15:16:46,495 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-12-07 15:16:46,671 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 118 states and 139 transitions. Complement of second has 28 states. [2019-12-07 15:16:46,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-12-07 15:16:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 15:16:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2019-12-07 15:16:46,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-12-07 15:16:46,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:46,673 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:16:46,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:46,704 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 15:16:46,705 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:46,734 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,734 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,736 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,736 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,744 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:46,744 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-12-07 15:16:46,744 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-12-07 15:16:46,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:46,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:46,783 INFO L264 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 15:16:46,783 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:46,821 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:46,822 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,824 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:46,824 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:46,825 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-12-07 15:16:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:16:46,836 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 6 loop predicates [2019-12-07 15:16:46,836 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-12-07 15:16:46,998 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 143 states and 169 transitions. Complement of second has 35 states. [2019-12-07 15:16:46,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-12-07 15:16:46,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 15:16:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 28 transitions. [2019-12-07 15:16:46,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 21 letters. Loop has 7 letters. [2019-12-07 15:16:47,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:47,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 28 letters. Loop has 7 letters. [2019-12-07 15:16:47,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:47,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 21 letters. Loop has 14 letters. [2019-12-07 15:16:47,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:47,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 169 transitions. [2019-12-07 15:16:47,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 15:16:47,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 93 states and 108 transitions. [2019-12-07 15:16:47,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2019-12-07 15:16:47,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2019-12-07 15:16:47,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 108 transitions. [2019-12-07 15:16:47,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:16:47,006 INFO L688 BuchiCegarLoop]: Abstraction has 93 states and 108 transitions. [2019-12-07 15:16:47,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 108 transitions. [2019-12-07 15:16:47,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 79. [2019-12-07 15:16:47,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-12-07 15:16:47,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2019-12-07 15:16:47,010 INFO L711 BuchiCegarLoop]: Abstraction has 79 states and 92 transitions. [2019-12-07 15:16:47,010 INFO L591 BuchiCegarLoop]: Abstraction has 79 states and 92 transitions. [2019-12-07 15:16:47,010 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 15:16:47,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 92 transitions. [2019-12-07 15:16:47,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 15:16:47,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:16:47,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:16:47,011 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:47,011 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:16:47,012 INFO L794 eck$LassoCheckResult]: Stem: 2285#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2276#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 2277#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2274#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2284#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2273#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2275#recFINAL assume true; 2293#recEXIT >#30#return; 2289#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 2288#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2294#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2295#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2325#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 2322#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 2323#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2337#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2341#recFINAL assume true; 2321#recEXIT >#28#return; 2319#L15-1 #res := #t~ret5;havoc #t~ret5; 2317#recFINAL assume true; 2299#recEXIT >#30#return; 2300#L23-1 [2019-12-07 15:16:47,012 INFO L796 eck$LassoCheckResult]: Loop: 2300#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 2306#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2302#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2304#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2313#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 2310#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 2311#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2339#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2347#recFINAL assume true; 2309#recEXIT >#28#return; 2307#L15-1 #res := #t~ret5;havoc #t~ret5; 2305#recFINAL assume true; 2301#recEXIT >#30#return; 2300#L23-1 [2019-12-07 15:16:47,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:47,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1572162950, now seen corresponding path program 6 times [2019-12-07 15:16:47,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:47,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163558569] [2019-12-07 15:16:47,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:47,033 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:47,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:47,033 INFO L82 PathProgramCache]: Analyzing trace with hash 773083116, now seen corresponding path program 1 times [2019-12-07 15:16:47,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:47,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614286920] [2019-12-07 15:16:47,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:47,047 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:47,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:47,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1940004217, now seen corresponding path program 7 times [2019-12-07 15:16:47,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:16:47,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271820644] [2019-12-07 15:16:47,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:16:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:16:47,069 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:16:47,376 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2019-12-07 15:16:48,126 WARN L192 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 134 [2019-12-07 15:16:48,186 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:16:48,186 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:16:48,186 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:16:48,186 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:16:48,187 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:16:48,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:48,187 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:16:48,187 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:16:48,187 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration6_Lasso [2019-12-07 15:16:48,187 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:16:48,187 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:16:48,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:48,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:48,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:48,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:48,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:16:48,591 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:16:48,592 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:48,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:48,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:48,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:48,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:48,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:48,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:48,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:48,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:48,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:48,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:48,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:16:48,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:48,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:48,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:48,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:16:48,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:16:48,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:48,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:48,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:48,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:48,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:48,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:48,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:48,609 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:48,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:48,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:48,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:48,615 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-12-07 15:16:48,615 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 15:16:48,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:48,622 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2019-12-07 15:16:48,622 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 15:16:48,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:48,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:48,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:48,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:48,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:48,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:48,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:48,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:48,651 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:48,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:16:48,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:16:48,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:16:48,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:16:48,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:16:48,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:16:48,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:16:48,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:16:48,676 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 15:16:48,676 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e44df6d-0cf6-4048-acf1-ab683ec1f9de/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:16:48,678 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:16:48,680 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:16:48,680 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:16:48,680 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~ret9, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_#t~ret9 + 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 15:16:48,687 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 15:16:48,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:16:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:48,713 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 15:16:48,714 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:48,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:16:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:16:48,737 INFO L264 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 15:16:48,738 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:16:48,767 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 15:16:48,768 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:16:48,770 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:16:48,770 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:16:48,770 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-12-07 15:16:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 15:16:48,789 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2019-12-07 15:16:48,789 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 92 transitions. cyclomatic complexity: 18 Second operand 9 states. [2019-12-07 15:16:48,840 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 92 transitions. cyclomatic complexity: 18. Second operand 9 states. Result 146 states and 171 transitions. Complement of second has 24 states. [2019-12-07 15:16:48,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2019-12-07 15:16:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 15:16:48,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 23 transitions. [2019-12-07 15:16:48,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 21 letters. Loop has 13 letters. [2019-12-07 15:16:48,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:48,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 34 letters. Loop has 13 letters. [2019-12-07 15:16:48,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:48,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 21 letters. Loop has 26 letters. [2019-12-07 15:16:48,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:16:48,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 171 transitions. [2019-12-07 15:16:48,843 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 15:16:48,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 0 states and 0 transitions. [2019-12-07 15:16:48,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 15:16:48,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 15:16:48,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 15:16:48,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:16:48,844 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:16:48,844 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:16:48,844 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:16:48,844 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 15:16:48,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:16:48,844 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 15:16:48,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 15:16:48,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 03:16:48 BoogieIcfgContainer [2019-12-07 15:16:48,848 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 15:16:48,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:16:48,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:16:48,849 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:16:48,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:16:39" (3/4) ... [2019-12-07 15:16:48,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:16:48,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:16:48,852 INFO L168 Benchmark]: Toolchain (without parser) took 9964.08 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 279.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 112.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:16:48,852 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:16:48,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:16:48,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:16:48,853 INFO L168 Benchmark]: Boogie Preprocessor took 13.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:16:48,853 INFO L168 Benchmark]: RCFGBuilder took 152.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:16:48,853 INFO L168 Benchmark]: BuchiAutomizer took 9590.31 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -36.8 MB). Peak memory consumption was 144.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:16:48,853 INFO L168 Benchmark]: Witness Printer took 2.51 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:16:48,855 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 152.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9590.31 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -36.8 MB). Peak memory consumption was 144.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.51 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function i and consists of 9 locations. One deterministic module has affine ranking function 2 * \old(unknown-#memory_int-unknown)[p][p] + 1 and consists of 5 locations. One deterministic module has affine ranking function aux-rec(op)-aux + i and consists of 8 locations. One deterministic module has affine ranking function aux-rec(op)-aux + i and consists of 9 locations. One nondeterministic module has affine ranking function 2 * unknown-#memory_int-unknown[p][p] + 1 and consists of 6 locations. One nondeterministic module has affine ranking function i and consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.5s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 7.2s. Construction of modules took 0.3s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 63 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/4 HoareTripleCheckerStatistics: 125 SDtfs, 143 SDslu, 151 SDs, 0 SdLazy, 408 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf100 lsp95 ukn59 mio100 lsp28 div100 bol100 ite100 ukn100 eq174 hnf90 smp97 dnf176 smp89 tf100 neg92 sie128 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 4 VariablesLoop: 5 DisjunctsStem: 4 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 28 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...