./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.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_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 e9d8db831e66fcf4f47c300fcbd3a74f1185238a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:59:32,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:59:32,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:59:32,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:59:32,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:59:32,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:59:32,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:59:32,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:59:32,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:59:32,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:59:32,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:59:32,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:59:32,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:59:32,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:59:32,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:59:32,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:59:32,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:59:32,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:59:32,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:59:32,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:59:32,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:59:32,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:59:32,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:59:32,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:59:32,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:59:32,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:59:32,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:59:32,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:59:32,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:59:32,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:59:32,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:59:32,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:59:32,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:59:32,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:59:32,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:59:32,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:59:32,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:59:32,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:59:32,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:59:32,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:59:32,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:59:32,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 11:59:32,801 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:59:32,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:59:32,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:59:32,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:59:32,802 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:59:32,802 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 11:59:32,802 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 11:59:32,802 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 11:59:32,802 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 11:59:32,803 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 11:59:32,803 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 11:59:32,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:59:32,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:59:32,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:59:32,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:59:32,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 11:59:32,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 11:59:32,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 11:59:32,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:59:32,804 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 11:59:32,804 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:59:32,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 11:59:32,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:59:32,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:59:32,804 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 11:59:32,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:59:32,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:59:32,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:59:32,805 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 11:59:32,805 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 11:59:32,805 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_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 -> e9d8db831e66fcf4f47c300fcbd3a74f1185238a [2019-12-07 11:59:32,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:59:32,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:59:32,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:59:32,925 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:59:32,925 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:59:32,926 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2019-12-07 11:59:32,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/data/3ab153907/1f56e31db4f342dbaae8e3b5c6393067/FLAG4e83e6e2a [2019-12-07 11:59:33,437 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:59:33,438 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2019-12-07 11:59:33,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/data/3ab153907/1f56e31db4f342dbaae8e3b5c6393067/FLAG4e83e6e2a [2019-12-07 11:59:33,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/bin/uautomizer/data/3ab153907/1f56e31db4f342dbaae8e3b5c6393067 [2019-12-07 11:59:33,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:59:33,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:59:33,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:59:33,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:59:33,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:59:33,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:59:33" (1/1) ... [2019-12-07 11:59:33,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f42a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:33, skipping insertion in model container [2019-12-07 11:59:33,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:59:33" (1/1) ... [2019-12-07 11:59:33,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:59:33,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:59:34,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:59:34,199 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:59:34,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:59:34,264 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:59:34,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34 WrapperNode [2019-12-07 11:59:34,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:59:34,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:59:34,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:59:34,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:59:34,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:59:34,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:59:34,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:59:34,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:59:34,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... [2019-12-07 11:59:34,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:59:34,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:59:34,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:59:34,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:59:34,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:59:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:59:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:59:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:59:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:59:34,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:59:34,494 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:59:34,495 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 11:59:34,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:59:34 BoogieIcfgContainer [2019-12-07 11:59:34,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:59:34,496 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 11:59:34,496 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 11:59:34,498 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 11:59:34,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:59:34,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 11:59:33" (1/3) ... [2019-12-07 11:59:34,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a3b94c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:59:34, skipping insertion in model container [2019-12-07 11:59:34,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:59:34,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:59:34" (2/3) ... [2019-12-07 11:59:34,500 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a3b94c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:59:34, skipping insertion in model container [2019-12-07 11:59:34,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:59:34,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:59:34" (3/3) ... [2019-12-07 11:59:34,501 INFO L371 chiAutomizerObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2019-12-07 11:59:34,528 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 11:59:34,529 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 11:59:34,529 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 11:59:34,529 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:59:34,529 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:59:34,529 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 11:59:34,529 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:59:34,529 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 11:59:34,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 11:59:34,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 11:59:34,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:59:34,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:59:34,555 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 11:59:34,555 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 11:59:34,556 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 11:59:34,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 11:59:34,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 11:59:34,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:59:34,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:59:34,557 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 11:59:34,557 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 11:59:34,562 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 10#L558-2true [2019-12-07 11:59:34,562 INFO L796 eck$LassoCheckResult]: Loop: 10#L558-2true call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 8#L552-1true assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4#L553true assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 9#L553-2true call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 5#L558true assume 0 != main_#t~mem10;havoc main_#t~mem10;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 10#L558-2true [2019-12-07 11:59:34,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:34,566 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 11:59:34,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:34,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558539870] [2019-12-07 11:59:34,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:34,664 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:34,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:34,665 INFO L82 PathProgramCache]: Analyzing trace with hash 35468238, now seen corresponding path program 1 times [2019-12-07 11:59:34,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:34,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852826728] [2019-12-07 11:59:34,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:34,695 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:34,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:34,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907724, now seen corresponding path program 1 times [2019-12-07 11:59:34,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:34,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738693321] [2019-12-07 11:59:34,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:59:34,780 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 11:59:34,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738693321] [2019-12-07 11:59:34,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:59:34,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:59:34,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915661797] [2019-12-07 11:59:34,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:59:34,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:59:34,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:59:34,918 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2019-12-07 11:59:34,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:59:34,956 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-12-07 11:59:34,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:59:34,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2019-12-07 11:59:34,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 11:59:34,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2019-12-07 11:59:34,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-12-07 11:59:34,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 11:59:34,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2019-12-07 11:59:34,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:59:34,962 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-12-07 11:59:34,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2019-12-07 11:59:34,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 11:59:34,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 11:59:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2019-12-07 11:59:34,979 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-12-07 11:59:34,979 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-12-07 11:59:34,979 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 11:59:34,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2019-12-07 11:59:34,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 11:59:34,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:59:34,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:59:34,980 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 11:59:34,980 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 11:59:34,980 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 36#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 37#L558-2 [2019-12-07 11:59:34,980 INFO L796 eck$LassoCheckResult]: Loop: 37#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 42#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 38#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 39#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 40#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 37#L558-2 [2019-12-07 11:59:34,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:34,980 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2019-12-07 11:59:34,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:34,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425123456] [2019-12-07 11:59:34,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:34,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:34,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:34,995 INFO L82 PathProgramCache]: Analyzing trace with hash 35468240, now seen corresponding path program 1 times [2019-12-07 11:59:34,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:34,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854511592] [2019-12-07 11:59:34,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:35,010 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:35,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:35,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907726, now seen corresponding path program 1 times [2019-12-07 11:59:35,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:35,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917802757] [2019-12-07 11:59:35,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:35,036 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:35,229 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-12-07 11:59:35,290 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:59:35,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:59:35,290 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:59:35,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:59:35,290 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 11:59:35,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:59:35,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:59:35,291 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:59:35,291 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration2_Lasso [2019-12-07 11:59:35,291 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:59:35,291 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:59:35,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,311 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 11:59:35,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,319 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 11:59:35,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,487 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 11:59:35,489 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 11:59:35,491 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 11:59:35,494 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 11:59:35,496 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 11:59:35,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:35,753 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:59:35,756 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:35,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:35,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:35,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:35,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:35,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:35,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:35,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:35,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:35,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:35,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:35,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:35,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:35,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:35,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:35,801 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,903 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,906 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:35,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:35,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:35,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:35,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:35,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:35,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:35,923 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 11:59:35,933 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 11:59:35,933 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:35,938 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 11:59:35,941 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 11:59:35,941 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 11:59:35,941 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 + 255 Supporting invariants [] [2019-12-07 11:59:35,970 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-12-07 11:59:35,977 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 11:59:35,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:59:35,999 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:59:36,000 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:59:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:59:36,010 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:59:36,011 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:59:36,058 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 34 treesize of output 18 [2019-12-07 11:59:36,059 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:59:36,064 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:59:36,064 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:59:36,064 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:17 [2019-12-07 11:59:36,077 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 11:59:36,079 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2019-12-07 11:59:36,080 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 5 states. [2019-12-07 11:59:36,115 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 18 states and 21 transitions. Complement of second has 9 states. [2019-12-07 11:59:36,116 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 11:59:36,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 11:59:36,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2019-12-07 11:59:36,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2019-12-07 11:59:36,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:59:36,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2019-12-07 11:59:36,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:59:36,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2019-12-07 11:59:36,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:59:36,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2019-12-07 11:59:36,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 11:59:36,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2019-12-07 11:59:36,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 11:59:36,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-12-07 11:59:36,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2019-12-07 11:59:36,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 11:59:36,122 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-12-07 11:59:36,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2019-12-07 11:59:36,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-12-07 11:59:36,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 11:59:36,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-12-07 11:59:36,124 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-12-07 11:59:36,124 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-12-07 11:59:36,124 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 11:59:36,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2019-12-07 11:59:36,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 11:59:36,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:59:36,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:59:36,125 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 11:59:36,126 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 11:59:36,126 INFO L794 eck$LassoCheckResult]: Stem: 165#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 155#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 156#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 166#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 157#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~post8;havoc main_#t~mem7; 158#L553-2 [2019-12-07 11:59:36,126 INFO L796 eck$LassoCheckResult]: Loop: 158#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 168#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 171#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 170#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 169#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 158#L553-2 [2019-12-07 11:59:36,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:36,126 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2019-12-07 11:59:36,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:36,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300758518] [2019-12-07 11:59:36,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:36,146 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:36,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:36,147 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 2 times [2019-12-07 11:59:36,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:36,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031947448] [2019-12-07 11:59:36,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:36,161 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:36,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:36,162 INFO L82 PathProgramCache]: Analyzing trace with hash 705693312, now seen corresponding path program 1 times [2019-12-07 11:59:36,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:36,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405954289] [2019-12-07 11:59:36,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:36,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:36,447 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2019-12-07 11:59:36,642 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-12-07 11:59:36,645 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:59:36,645 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:59:36,645 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:59:36,645 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:59:36,645 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 11:59:36,645 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:59:36,645 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:59:36,645 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:59:36,645 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration3_Lasso [2019-12-07 11:59:36,645 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:59:36,645 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:59:36,648 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 11:59:36,649 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 11:59:36,650 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 11:59:36,651 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 11:59:36,652 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 11:59:36,809 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 11:59:36,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:36,812 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 11:59:36,814 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 11:59:36,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:36,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:36,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:36,819 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 11:59:36,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:59:37,074 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:59:37,075 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:37,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:37,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,079 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:37,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:37,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:37,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:37,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:37,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:37,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:59:37,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:37,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:37,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:37,093 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:37,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:59:37,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:59:37,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:59:37,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:37,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:37,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:37,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:37,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:37,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:37,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:59:37,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:37,137 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:37,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:37,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:37,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:37,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:59:37,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:37,157 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:37,159 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 11:59:37,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:59:37,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:59:37,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:59:37,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:59:37,167 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:59:37,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:59:37,172 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 11:59:37,178 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-12-07 11:59:37,178 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74ecbab1-5d14-4e4c-8a2f-9f1939fcfa67/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 11:59:37,182 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 11:59:37,184 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 11:59:37,184 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 11:59:37,184 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2 + 255 Supporting invariants [] [2019-12-07 11:59:37,208 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-12-07 11:59:37,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 11:59:37,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:59:37,225 INFO L264 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:59:37,225 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:59:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:59:37,230 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:59:37,230 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:59:37,247 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 11:59:37,248 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 11:59:37,248 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 5 states. [2019-12-07 11:59:37,267 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 27 states and 32 transitions. Complement of second has 9 states. [2019-12-07 11:59:37,268 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 11:59:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 11:59:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2019-12-07 11:59:37,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 5 letters. [2019-12-07 11:59:37,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:59:37,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 5 letters. [2019-12-07 11:59:37,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:59:37,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 10 letters. [2019-12-07 11:59:37,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:59:37,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2019-12-07 11:59:37,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 11:59:37,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 32 transitions. [2019-12-07 11:59:37,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 11:59:37,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 11:59:37,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2019-12-07 11:59:37,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 11:59:37,271 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2019-12-07 11:59:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2019-12-07 11:59:37,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 11:59:37,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 11:59:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2019-12-07 11:59:37,273 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2019-12-07 11:59:37,273 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2019-12-07 11:59:37,273 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 11:59:37,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2019-12-07 11:59:37,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 11:59:37,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:59:37,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:59:37,274 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2019-12-07 11:59:37,274 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 11:59:37,275 INFO L794 eck$LassoCheckResult]: Stem: 311#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 301#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 302#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 319#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 303#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~post8;havoc main_#t~mem7; 304#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 318#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 322#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 321#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 320#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~post8;havoc main_#t~mem7; 315#L553-2 [2019-12-07 11:59:37,275 INFO L796 eck$LassoCheckResult]: Loop: 315#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 307#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 308#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 312#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 313#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 315#L553-2 [2019-12-07 11:59:37,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:37,275 INFO L82 PathProgramCache]: Analyzing trace with hash 705693310, now seen corresponding path program 1 times [2019-12-07 11:59:37,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:37,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131580081] [2019-12-07 11:59:37,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:59:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:59:37,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131580081] [2019-12-07 11:59:37,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:59:37,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 11:59:37,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583194325] [2019-12-07 11:59:37,350 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 11:59:37,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:59:37,350 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 3 times [2019-12-07 11:59:37,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:59:37,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832003871] [2019-12-07 11:59:37,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:59:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:59:37,359 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:59:37,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:59:37,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 11:59:37,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 11:59:37,435 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. cyclomatic complexity: 8 Second operand 7 states. [2019-12-07 11:59:37,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:59:37,469 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2019-12-07 11:59:37,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 11:59:37,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. [2019-12-07 11:59:37,470 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 11:59:37,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2019-12-07 11:59:37,470 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 11:59:37,470 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 11:59:37,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 11:59:37,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:59:37,470 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:59:37,471 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:59:37,471 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:59:37,471 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 11:59:37,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:59:37,471 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 11:59:37,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 11:59:37,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 11:59:37 BoogieIcfgContainer [2019-12-07 11:59:37,475 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 11:59:37,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:59:37,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:59:37,475 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:59:37,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:59:34" (3/4) ... [2019-12-07 11:59:37,478 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:59:37,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:59:37,479 INFO L168 Benchmark]: Toolchain (without parser) took 3529.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -89.9 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:59:37,479 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 11:59:37,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:59:37,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:59:37,480 INFO L168 Benchmark]: Boogie Preprocessor took 19.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:59:37,480 INFO L168 Benchmark]: RCFGBuilder took 181.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:59:37,481 INFO L168 Benchmark]: BuchiAutomizer took 2979.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.6 MB). Peak memory consumption was 115.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:59:37,481 INFO L168 Benchmark]: Witness Printer took 2.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:59:37,483 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 313.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 181.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2979.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.6 MB). Peak memory consumption was 115.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + 255 and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + 255 and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 20 SDslu, 20 SDs, 0 SdLazy, 71 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital246 mio100 ax107 hnf100 lsp88 ukn58 mio100 lsp38 div163 bol100 ite100 ukn100 eq153 hnf68 smp94 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...