./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/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 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:08,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:08,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:08,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:08,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:08,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:08,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:08,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:08,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:08,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:08,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:08,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:08,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:08,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:08,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:08,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:08,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:08,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:08,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:08,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:08,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:08,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:08,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:08,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:08,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:08,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:08,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:08,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:08,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:08,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:08,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:08,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:08,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:08,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:08,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:08,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:08,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:08,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:08,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:08,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:08,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:08,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:53:08,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:08,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:08,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:08,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:08,120 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:08,120 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:53:08,121 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:53:08,121 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:53:08,121 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:53:08,121 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:53:08,121 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:53:08,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:08,121 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:53:08,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:08,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:08,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:53:08,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:53:08,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:53:08,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:08,123 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:53:08,123 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:08,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:53:08,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:08,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:08,123 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:53:08,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:08,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:08,124 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:53:08,124 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:53:08,125 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_1d53b5f7-5b50-45da-96fb-393796c6e944/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 -> 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b [2019-11-25 08:53:08,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:08,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:08,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:08,305 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:08,307 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:08,308 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/../../sv-benchmarks/c/termination-15/count_up_alloca.i [2019-11-25 08:53:08,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/data/33c1562a0/04324289b8de430cb9acb70e02ac25fe/FLAG7d5bd2233 [2019-11-25 08:53:08,820 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:08,820 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/sv-benchmarks/c/termination-15/count_up_alloca.i [2019-11-25 08:53:08,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/data/33c1562a0/04324289b8de430cb9acb70e02ac25fe/FLAG7d5bd2233 [2019-11-25 08:53:09,152 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/data/33c1562a0/04324289b8de430cb9acb70e02ac25fe [2019-11-25 08:53:09,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:09,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:09,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:09,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:09,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:09,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568b4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09, skipping insertion in model container [2019-11-25 08:53:09,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:09,195 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:09,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:09,586 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:09,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:09,730 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:09,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09 WrapperNode [2019-11-25 08:53:09,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:09,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:09,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:09,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:09,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:09,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:09,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:09,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:09,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... [2019-11-25 08:53:09,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:09,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:09,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:09,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:09,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:53:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:53:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:09,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:10,103 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:10,103 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:53:10,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:10 BoogieIcfgContainer [2019-11-25 08:53:10,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:10,105 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:53:10,105 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:53:10,108 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:53:10,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:10,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:53:09" (1/3) ... [2019-11-25 08:53:10,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cc33e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:53:10, skipping insertion in model container [2019-11-25 08:53:10,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:10,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:09" (2/3) ... [2019-11-25 08:53:10,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cc33e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:53:10, skipping insertion in model container [2019-11-25 08:53:10,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:10,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:10" (3/3) ... [2019-11-25 08:53:10,113 INFO L371 chiAutomizerObserver]: Analyzing ICFG count_up_alloca.i [2019-11-25 08:53:10,169 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:53:10,169 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:53:10,169 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:53:10,169 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:10,170 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:10,170 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:53:10,170 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:10,170 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:53:10,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-25 08:53:10,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-25 08:53:10,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:10,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:10,212 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:53:10,212 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-25 08:53:10,212 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:53:10,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-25 08:53:10,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-25 08:53:10,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:10,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:10,215 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:53:10,215 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-25 08:53:10,220 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 15#L369true assume !(main_~length~0 < 1); 20#L369-2true call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 12#L371true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 16#L372-3true [2019-11-25 08:53:10,221 INFO L796 eck$LassoCheckResult]: Loop: 16#L372-3true assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 7#L374true assume main_~val~0 > main_~limit~0;main_~val~0 := main_~limit~0; 10#L374-2true call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 13#L372-2true main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 16#L372-3true [2019-11-25 08:53:10,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:10,226 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-11-25 08:53:10,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:10,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478818767] [2019-11-25 08:53:10,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:10,359 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:10,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2019-11-25 08:53:10,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:10,361 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341533404] [2019-11-25 08:53:10,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:10,382 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:10,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:10,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2019-11-25 08:53:10,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:10,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126550244] [2019-11-25 08:53:10,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:10,427 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:10,649 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-11-25 08:53:10,693 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:53:10,694 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:53:10,694 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:53:10,694 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:53:10,695 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:53:10,695 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:10,695 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:53:10,695 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:53:10,695 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration1_Lasso [2019-11-25 08:53:10,695 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:53:10,696 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:53:10,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:10,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:11,130 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:53:11,135 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:11,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:11,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/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) [2019-11-25 08:53:11,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/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) [2019-11-25 08:53:11,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:11,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:53:11,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:11,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:11,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:11,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:11,272 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:11,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:11,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:11,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:11,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,328 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:11,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:53:11,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:11,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:11,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:11,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:11,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:11,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:11,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:53:11,386 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:53:11,435 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-25 08:53:11,435 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:11,447 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:11,454 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:53:11,454 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:53:11,455 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc207.base)_1, ULTIMATE.start_main_~arr~0.offset, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc207.base)_1 - 1*ULTIMATE.start_main_~arr~0.offset - 4*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-25 08:53:11,469 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-11-25 08:53:11,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:53:11,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:11,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:53:11,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:11,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:53:11,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:11,609 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-25 08:53:11,611 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 5 states. [2019-11-25 08:53:11,712 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 5 states. Result 40 states and 57 transitions. Complement of second has 9 states. [2019-11-25 08:53:11,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:53:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-25 08:53:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 37 transitions. [2019-11-25 08:53:11,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-25 08:53:11,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:11,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 9 letters. Loop has 4 letters. [2019-11-25 08:53:11,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:11,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 8 letters. [2019-11-25 08:53:11,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:11,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 57 transitions. [2019-11-25 08:53:11,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:53:11,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 15 states and 20 transitions. [2019-11-25 08:53:11,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-25 08:53:11,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-25 08:53:11,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2019-11-25 08:53:11,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:53:11,731 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-25 08:53:11,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2019-11-25 08:53:11,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-25 08:53:11,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-25 08:53:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-11-25 08:53:11,758 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-25 08:53:11,758 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-25 08:53:11,758 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:53:11,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-11-25 08:53:11,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:53:11,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:11,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:11,760 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:11,760 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-25 08:53:11,761 INFO L794 eck$LassoCheckResult]: Stem: 141#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 139#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 140#L369 assume !(main_~length~0 < 1); 145#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 142#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 143#L372-3 assume !(main_~i~0 < main_~length~0); 146#L372-4 main_~j~0 := 0; 133#L379-3 [2019-11-25 08:53:11,761 INFO L796 eck$LassoCheckResult]: Loop: 133#L379-3 assume !!(main_~j~0 < main_~length~0); 134#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 135#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 132#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 133#L379-3 [2019-11-25 08:53:11,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:11,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2019-11-25 08:53:11,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:11,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45691335] [2019-11-25 08:53:11,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:11,853 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45691335] [2019-11-25 08:53:11,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:11,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:53:11,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081972976] [2019-11-25 08:53:11,857 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:53:11,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:11,858 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2019-11-25 08:53:11,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:11,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140003993] [2019-11-25 08:53:11,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:11,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:11,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:11,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:11,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:11,907 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-25 08:53:11,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:11,935 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-11-25 08:53:11,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:53:11,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-11-25 08:53:11,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:53:11,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2019-11-25 08:53:11,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-25 08:53:11,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-25 08:53:11,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2019-11-25 08:53:11,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:53:11,938 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-25 08:53:11,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2019-11-25 08:53:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2019-11-25 08:53:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-25 08:53:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2019-11-25 08:53:11,940 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-11-25 08:53:11,940 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-11-25 08:53:11,940 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:53:11,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2019-11-25 08:53:11,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:53:11,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:11,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:11,941 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:11,941 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-25 08:53:11,942 INFO L794 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 179#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 180#L369 assume !(main_~length~0 < 1); 186#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 182#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 183#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 176#L374 assume !(main_~val~0 > main_~limit~0); 177#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 178#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 184#L372-3 assume !(main_~i~0 < main_~length~0); 185#L372-4 main_~j~0 := 0; 175#L379-3 [2019-11-25 08:53:11,942 INFO L796 eck$LassoCheckResult]: Loop: 175#L379-3 assume !!(main_~j~0 < main_~length~0); 172#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 173#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 174#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 175#L379-3 [2019-11-25 08:53:11,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:11,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2019-11-25 08:53:11,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:11,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962949221] [2019-11-25 08:53:11,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:11,968 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:11,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:11,968 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2019-11-25 08:53:11,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:11,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10315122] [2019-11-25 08:53:11,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:11,983 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:11,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:11,984 INFO L82 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2019-11-25 08:53:11,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:11,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067702114] [2019-11-25 08:53:11,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:12,044 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:12,272 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-11-25 08:53:12,332 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:53:12,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:53:12,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:53:12,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:53:12,332 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:53:12,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:53:12,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:53:12,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration3_Lasso [2019-11-25 08:53:12,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:53:12,333 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:53:12,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,512 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2019-11-25 08:53:12,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:12,796 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:53:12,796 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:12,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:12,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:12,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/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) [2019-11-25 08:53:12,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:12,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:12,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:12,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:12,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:12,847 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,858 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 [2019-11-25 08:53:12,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:12,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:12,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:12,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:12,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:12,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:12,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:12,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:53:12,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:12,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:12,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:53:12,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:12,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:53:12,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:12,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:12,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:53:12,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:12,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:12,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:12,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:12,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:12,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:12,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:12,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:12,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:13,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:13,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:13,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:13,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:13,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:13,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:13,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:13,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:13,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:13,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:13,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:13,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:13,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:13,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:13,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:13,043 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:53:13,098 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2019-11-25 08:53:13,098 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:13,102 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:13,105 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:53:13,105 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:53:13,105 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-11-25 08:53:13,113 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-25 08:53:13,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:13,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:53:13,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:13,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:53:13,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:13,158 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:53:13,159 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-25 08:53:13,177 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 20 states and 26 transitions. Complement of second has 4 states. [2019-11-25 08:53:13,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:53:13,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:53:13,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-11-25 08:53:13,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2019-11-25 08:53:13,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:13,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 4 letters. [2019-11-25 08:53:13,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:13,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 8 letters. [2019-11-25 08:53:13,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:13,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2019-11-25 08:53:13,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:53:13,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 25 transitions. [2019-11-25 08:53:13,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-25 08:53:13,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-25 08:53:13,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2019-11-25 08:53:13,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:53:13,182 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-11-25 08:53:13,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2019-11-25 08:53:13,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-25 08:53:13,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:53:13,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2019-11-25 08:53:13,184 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-11-25 08:53:13,184 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-11-25 08:53:13,184 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:53:13,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2019-11-25 08:53:13,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:53:13,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:13,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:13,185 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:13,185 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:53:13,186 INFO L794 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 293#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 294#L369 assume !(main_~length~0 < 1); 300#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 297#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 298#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 291#L374 assume !(main_~val~0 > main_~limit~0); 292#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 295#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 299#L372-3 assume !(main_~i~0 < main_~length~0); 301#L372-4 main_~j~0 := 0; 290#L379-3 assume !!(main_~j~0 < main_~length~0); 284#L380-3 [2019-11-25 08:53:13,186 INFO L796 eck$LassoCheckResult]: Loop: 284#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 285#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 284#L380-3 [2019-11-25 08:53:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:13,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2019-11-25 08:53:13,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:13,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745029020] [2019-11-25 08:53:13,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:13,232 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:13,232 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2019-11-25 08:53:13,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:13,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245682776] [2019-11-25 08:53:13,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:13,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:13,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:13,241 INFO L82 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2019-11-25 08:53:13,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:13,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099149907] [2019-11-25 08:53:13,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:13,291 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:13,482 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2019-11-25 08:53:13,535 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:53:13,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:53:13,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:53:13,535 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:53:13,535 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:53:13,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:13,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:53:13,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:53:13,536 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration4_Lasso [2019-11-25 08:53:13,536 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:53:13,536 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:53:13,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:13,993 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:53:13,994 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:14,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:14,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:14,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:53:14,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:14,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:14,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:14,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:53:14,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:14,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:14,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:14,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:14,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:14,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:14,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:14,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:14,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:14,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:14,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:14,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:14,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:14,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:14,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:14,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:14,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:14,046 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:53:14,066 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-25 08:53:14,066 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:14,070 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:14,072 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:53:14,072 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:53:14,072 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_2) = 1*ULTIMATE.start_main_~limit~0 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_2 Supporting invariants [] [2019-11-25 08:53:14,084 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-11-25 08:53:14,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:53:14,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:14,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:53:14,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:14,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:53:14,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:14,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:14,164 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-25 08:53:14,165 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-25 08:53:14,216 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 27 states and 35 transitions. Complement of second has 8 states. [2019-11-25 08:53:14,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:53:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:53:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-11-25 08:53:14,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-25 08:53:14,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:14,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-25 08:53:14,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:14,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-25 08:53:14,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:14,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2019-11-25 08:53:14,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:53:14,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 22 states and 28 transitions. [2019-11-25 08:53:14,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-25 08:53:14,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-25 08:53:14,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2019-11-25 08:53:14,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:53:14,220 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-11-25 08:53:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2019-11-25 08:53:14,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-11-25 08:53:14,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-25 08:53:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2019-11-25 08:53:14,223 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-11-25 08:53:14,223 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-11-25 08:53:14,223 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:53:14,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2019-11-25 08:53:14,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:53:14,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:14,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:14,224 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:14,225 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:53:14,225 INFO L794 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 429#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 430#L369 assume !(main_~length~0 < 1); 436#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 432#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 433#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 426#L374 assume !(main_~val~0 > main_~limit~0); 427#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 428#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 434#L372-3 assume !(main_~i~0 < main_~length~0); 435#L372-4 main_~j~0 := 0; 424#L379-3 assume !!(main_~j~0 < main_~length~0); 425#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 437#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 418#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 419#L379-3 assume !!(main_~j~0 < main_~length~0); 420#L380-3 [2019-11-25 08:53:14,225 INFO L796 eck$LassoCheckResult]: Loop: 420#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 421#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 420#L380-3 [2019-11-25 08:53:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2019-11-25 08:53:14,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:14,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395739590] [2019-11-25 08:53:14,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:14,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395739590] [2019-11-25 08:53:14,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718338669] [2019-11-25 08:53:14,358 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:53:14,402 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-25 08:53:14,403 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:53:14,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:53:14,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:14,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:53:14,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2019-11-25 08:53:14,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110788732] [2019-11-25 08:53:14,482 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:53:14,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:14,482 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2019-11-25 08:53:14,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:14,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122436810] [2019-11-25 08:53:14,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:14,490 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:14,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:14,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-25 08:53:14,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-25 08:53:14,529 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 10 Second operand 14 states. [2019-11-25 08:53:14,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:14,879 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2019-11-25 08:53:14,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-25 08:53:14,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 56 transitions. [2019-11-25 08:53:14,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:53:14,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 28 states and 35 transitions. [2019-11-25 08:53:14,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-25 08:53:14,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-25 08:53:14,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2019-11-25 08:53:14,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:53:14,882 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-25 08:53:14,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2019-11-25 08:53:14,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2019-11-25 08:53:14,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-25 08:53:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2019-11-25 08:53:14,885 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-11-25 08:53:14,886 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-11-25 08:53:14,886 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-25 08:53:14,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2019-11-25 08:53:14,887 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:53:14,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:14,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:14,888 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:14,888 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:53:14,888 INFO L794 eck$LassoCheckResult]: Stem: 574#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 572#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 573#L369 assume !(main_~length~0 < 1); 580#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 575#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 576#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 579#L374 assume !(main_~val~0 > main_~limit~0); 584#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 577#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 578#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 569#L374 assume !(main_~val~0 > main_~limit~0); 570#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 571#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 583#L372-3 assume !(main_~i~0 < main_~length~0); 582#L372-4 main_~j~0 := 0; 567#L379-3 assume !!(main_~j~0 < main_~length~0); 568#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 585#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 565#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 566#L379-3 assume !!(main_~j~0 < main_~length~0); 561#L380-3 [2019-11-25 08:53:14,888 INFO L796 eck$LassoCheckResult]: Loop: 561#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 562#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 561#L380-3 [2019-11-25 08:53:14,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:14,889 INFO L82 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2019-11-25 08:53:14,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:14,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581199653] [2019-11-25 08:53:14,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:14,914 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:14,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:14,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2019-11-25 08:53:14,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:14,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893215480] [2019-11-25 08:53:14,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:14,921 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:14,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:14,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2019-11-25 08:53:14,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:14,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148709947] [2019-11-25 08:53:14,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:14,958 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:15,291 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2019-11-25 08:53:15,350 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:53:15,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:53:15,351 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:53:15,351 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:53:15,351 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:53:15,351 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:15,351 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:53:15,351 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:53:15,351 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration6_Lasso [2019-11-25 08:53:15,351 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:53:15,351 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:53:15,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:53:15,745 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:53:15,745 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:15,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:15,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:15,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:15,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:15,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:15,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:15,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:53:15,762 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:15,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:15,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:15,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:15,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:15,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:15,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:15,779 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:15,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:15,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:53:15,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:53:15,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:53:15,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:53:15,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:53:15,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:53:15,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:15,808 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:53:15,815 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-25 08:53:15,815 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d53b5f7-5b50-45da-96fb-393796c6e944/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:53:15,820 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:15,823 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:53:15,823 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:53:15,823 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3, ULTIMATE.start_main_~limit~0) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3 + 1*ULTIMATE.start_main_~limit~0 Supporting invariants [] [2019-11-25 08:53:15,833 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-11-25 08:53:15,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:53:15,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:15,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:53:15,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:15,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:53:15,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:15,888 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:53:15,889 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-25 08:53:15,910 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2019-11-25 08:53:15,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:53:15,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:53:15,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-25 08:53:15,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2019-11-25 08:53:15,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:15,912 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:53:15,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:15,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:53:15,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:15,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:53:15,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:15,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:15,957 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:53:15,957 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-25 08:53:15,970 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2019-11-25 08:53:15,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:53:15,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:53:15,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-25 08:53:15,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2019-11-25 08:53:15,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:15,971 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:53:15,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:16,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:53:16,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:16,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:53:16,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:16,025 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:53:16,025 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-25 08:53:16,042 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 6 states. [2019-11-25 08:53:16,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:53:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:53:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2019-11-25 08:53:16,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 2 letters. [2019-11-25 08:53:16,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:16,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 22 letters. Loop has 2 letters. [2019-11-25 08:53:16,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:16,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 4 letters. [2019-11-25 08:53:16,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:53:16,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2019-11-25 08:53:16,049 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:53:16,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2019-11-25 08:53:16,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:53:16,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:53:16,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:53:16,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:53:16,050 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:53:16,050 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:53:16,050 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:53:16,050 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-25 08:53:16,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:53:16,050 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:53:16,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:53:16,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:53:16 BoogieIcfgContainer [2019-11-25 08:53:16,056 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:53:16,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:16,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:16,057 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:16,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:10" (3/4) ... [2019-11-25 08:53:16,060 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:53:16,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:16,061 INFO L168 Benchmark]: Toolchain (without parser) took 6906.59 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.2 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -207.3 MB). Peak memory consumption was 110.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:16,061 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:16,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:16,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.25 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:16,063 INFO L168 Benchmark]: Boogie Preprocessor took 30.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:16,063 INFO L168 Benchmark]: RCFGBuilder took 290.76 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:16,064 INFO L168 Benchmark]: BuchiAutomizer took 5951.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -73.1 MB). Peak memory consumption was 114.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:16,064 INFO L168 Benchmark]: Witness Printer took 3.71 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:16,066 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 575.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.25 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.91 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 290.76 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5951.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -73.1 MB). Peak memory consumption was 114.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.71 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] + -1 * arr + -4 * i and consists of 6 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One deterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][arr] and consists of 5 locations. One nondeterministic module has affine ranking function -1 * unknown-#memory_int-unknown[arr][j * 4 + arr] + limit and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 4.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 104 SDtfs, 222 SDslu, 86 SDs, 0 SdLazy, 190 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital130 mio100 ax100 hnf98 lsp94 ukn79 mio100 lsp55 div100 bol100 ite100 ukn100 eq164 hnf89 smp96 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms 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...