./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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 30ab881e1a71a9d76a9921c34ce47cc9425d2331 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:11:11,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:11:11,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:11:11,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:11:11,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:11:11,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:11:11,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:11:11,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:11:11,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:11:11,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:11:11,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:11:11,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:11:11,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:11:11,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:11:11,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:11:11,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:11:11,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:11:11,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:11:11,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:11:11,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:11:11,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:11:11,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:11:11,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:11:11,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:11:11,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:11:11,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:11:11,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:11:11,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:11:11,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:11:11,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:11:11,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:11:11,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:11:11,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:11:11,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:11:11,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:11:11,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:11:11,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:11:11,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:11:11,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:11:11,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:11:11,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:11:11,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 22:11:11,401 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:11:11,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:11:11,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:11:11,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:11:11,403 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:11:11,403 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:11:11,403 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:11:11,404 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:11:11,404 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:11:11,404 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:11:11,405 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:11:11,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:11:11,405 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:11:11,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:11:11,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:11:11,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:11:11,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:11:11,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:11:11,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:11:11,407 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:11:11,407 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:11:11,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:11:11,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:11:11,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:11:11,408 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:11:11,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:11:11,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:11:11,409 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:11:11,410 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:11:11,410 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_552531b7-9985-40b1-913a-f33149c2d718/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 -> 30ab881e1a71a9d76a9921c34ce47cc9425d2331 [2019-11-19 22:11:11,558 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:11:11,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:11:11,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:11:11,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:11:11,573 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:11:11,573 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i [2019-11-19 22:11:11,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/data/68304a949/935ec24699d34252a160a904f601ad3f/FLAG04650cdf7 [2019-11-19 22:11:12,126 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:11:12,127 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i [2019-11-19 22:11:12,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/data/68304a949/935ec24699d34252a160a904f601ad3f/FLAG04650cdf7 [2019-11-19 22:11:12,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/data/68304a949/935ec24699d34252a160a904f601ad3f [2019-11-19 22:11:12,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:11:12,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:11:12,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:11:12,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:11:12,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:11:12,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:11:12" (1/1) ... [2019-11-19 22:11:12,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fe7f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:12, skipping insertion in model container [2019-11-19 22:11:12,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:11:12" (1/1) ... [2019-11-19 22:11:12,659 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:11:12,699 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:11:13,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:11:13,026 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:11:13,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:11:13,109 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:11:13,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13 WrapperNode [2019-11-19 22:11:13,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:11:13,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:11:13,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:11:13,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:11:13,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:11:13,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:11:13,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:11:13,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:11:13,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... [2019-11-19 22:11:13,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:11:13,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:11:13,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:11:13,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:11:13,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:11:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:11:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:11:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:11:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:11:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:11:13,455 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:11:13,455 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 22:11:13,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:11:13 BoogieIcfgContainer [2019-11-19 22:11:13,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:11:13,457 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:11:13,457 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:11:13,459 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:11:13,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:11:13,460 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:11:12" (1/3) ... [2019-11-19 22:11:13,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61b53170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:11:13, skipping insertion in model container [2019-11-19 22:11:13,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:11:13,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:11:13" (2/3) ... [2019-11-19 22:11:13,472 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61b53170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:11:13, skipping insertion in model container [2019-11-19 22:11:13,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:11:13,472 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:11:13" (3/3) ... [2019-11-19 22:11:13,474 INFO L371 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-2013TACAS-Fig3-alloca.i [2019-11-19 22:11:13,524 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:11:13,524 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:11:13,524 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:11:13,524 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:11:13,524 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:11:13,525 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:11:13,525 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:11:13,525 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:11:13,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-19 22:11:13,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:11:13,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:11:13,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:11:13,558 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:11:13,558 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:11:13,558 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:11:13,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-19 22:11:13,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:11:13,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:11:13,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:11:13,560 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:11:13,560 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:11:13,565 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 11#L551-2true [2019-11-19 22:11:13,566 INFO L796 eck$LassoCheckResult]: Loop: 11#L551-2true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 12#L550-1true assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6#L550-3true assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 7#L551true assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 11#L551-2true [2019-11-19 22:11:13,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:13,570 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-19 22:11:13,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:13,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737350585] [2019-11-19 22:11:13,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:13,679 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:13,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:13,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 1 times [2019-11-19 22:11:13,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:13,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001336554] [2019-11-19 22:11:13,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:13,710 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:13,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:13,712 INFO L82 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2019-11-19 22:11:13,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:13,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846082938] [2019-11-19 22:11:13,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:13,762 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:13,927 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-11-19 22:11:14,119 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-19 22:11:14,185 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:11:14,186 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:11:14,186 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:11:14,187 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:11:14,187 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:11:14,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:14,187 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:11:14,187 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:11:14,188 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration1_Lasso [2019-11-19 22:11:14,188 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:11:14,188 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:11:14,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,416 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-11-19 22:11:14,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:14,966 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:11:14,974 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:14,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:14,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:14,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:14,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:14,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:14,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:14,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:14,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:14,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:15,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:15,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:15,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:15,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:15,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:15,026 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:15,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:15,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:15,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:15,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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) [2019-11-19 22:11:15,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:15,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:15,101 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:15,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:15,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:15,182 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:15,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,211 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:15,211 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:15,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:15,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:15,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:15,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:15,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:15,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:15,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:15,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:15,241 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:11:15,246 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-19 22:11:15,246 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:15,257 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:11:15,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 22:11:15,261 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:11:15,261 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [] [2019-11-19 22:11:15,428 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-19 22:11:15,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 22:11:15,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:15,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:11:15,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:15,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:11:15,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:15,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:11:15,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:11:15,570 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 22:11:15,570 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2019-11-19 22:11:15,642 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 40 states and 48 transitions. Complement of second has 10 states. [2019-11-19 22:11:15,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-19 22:11:15,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:11:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2019-11-19 22:11:15,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-19 22:11:15,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:15,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-19 22:11:15,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:15,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-19 22:11:15,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:15,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 48 transitions. [2019-11-19 22:11:15,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:11:15,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 16 states and 22 transitions. [2019-11-19 22:11:15,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-19 22:11:15,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-19 22:11:15,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2019-11-19 22:11:15,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:11:15,670 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-19 22:11:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2019-11-19 22:11:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2019-11-19 22:11:15,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 22:11:15,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2019-11-19 22:11:15,697 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2019-11-19 22:11:15,697 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2019-11-19 22:11:15,697 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:11:15,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2019-11-19 22:11:15,699 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:11:15,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:11:15,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:11:15,700 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:11:15,700 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:11:15,700 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 144#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 145#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 153#L550-1 assume !main_#t~short6; 146#L550-3 assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 147#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 151#L551-2 [2019-11-19 22:11:15,701 INFO L796 eck$LassoCheckResult]: Loop: 151#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 155#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 157#L550-3 assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 156#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 151#L551-2 [2019-11-19 22:11:15,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:15,701 INFO L82 PathProgramCache]: Analyzing trace with hash 889571373, now seen corresponding path program 1 times [2019-11-19 22:11:15,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:15,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355120480] [2019-11-19 22:11:15,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:11:15,795 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355120480] [2019-11-19 22:11:15,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:11:15,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:11:15,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488887879] [2019-11-19 22:11:15,798 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 22:11:15,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:15,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 2 times [2019-11-19 22:11:15,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:15,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275832356] [2019-11-19 22:11:15,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:15,833 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:15,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:11:15,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:11:15,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:11:15,974 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-19 22:11:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:11:15,985 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2019-11-19 22:11:15,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:11:15,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2019-11-19 22:11:15,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:11:15,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 17 transitions. [2019-11-19 22:11:15,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-19 22:11:15,988 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-19 22:11:15,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2019-11-19 22:11:15,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:11:15,989 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-19 22:11:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2019-11-19 22:11:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-19 22:11:15,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 22:11:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-11-19 22:11:15,990 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-19 22:11:15,990 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-19 22:11:15,991 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:11:15,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2019-11-19 22:11:15,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:11:15,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:11:15,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:11:15,992 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:11:15,992 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:11:15,992 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 181#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 182#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 191#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 184#L550-3 assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 185#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 188#L551-2 [2019-11-19 22:11:15,992 INFO L796 eck$LassoCheckResult]: Loop: 188#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 190#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 194#L550-3 assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 193#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 188#L551-2 [2019-11-19 22:11:15,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:15,992 INFO L82 PathProgramCache]: Analyzing trace with hash 889569451, now seen corresponding path program 1 times [2019-11-19 22:11:15,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:15,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183737368] [2019-11-19 22:11:15,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:16,049 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:16,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 3 times [2019-11-19 22:11:16,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:16,050 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533071040] [2019-11-19 22:11:16,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:16,083 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:16,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:16,084 INFO L82 PathProgramCache]: Analyzing trace with hash -980235887, now seen corresponding path program 1 times [2019-11-19 22:11:16,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:16,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409634290] [2019-11-19 22:11:16,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:16,145 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:16,267 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-11-19 22:11:16,597 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-11-19 22:11:16,684 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:11:16,684 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:11:16,684 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:11:16,684 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:11:16,684 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:11:16,684 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:16,684 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:11:16,684 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:11:16,685 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration3_Lasso [2019-11-19 22:11:16,685 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:11:16,685 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:11:16,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,838 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-11-19 22:11:16,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:16,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:17,310 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:11:17,311 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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) [2019-11-19 22:11:17,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:17,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:17,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:17,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:17,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:17,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:17,336 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:17,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:17,361 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:17,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:17,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:17,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:17,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:17,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:17,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:17,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:17,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:17,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:17,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:17,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:17,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:17,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:17,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:17,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:17,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:17,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:17,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:17,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:17,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:17,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:17,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:17,430 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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 [2019-11-19 22:11:17,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:17,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:17,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:17,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:17,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:17,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:17,441 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:17,448 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:17,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:17,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:17,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:17,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:17,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:17,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:17,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:17,472 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:11:17,477 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-19 22:11:17,477 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:17,493 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:11:17,496 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:11:17,496 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:11:17,498 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2 Supporting invariants [] [2019-11-19 22:11:17,549 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-19 22:11:17,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 22:11:17,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:17,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:11:17,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:17,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:11:17,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:17,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:11:17,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:11:17,665 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 22:11:17,665 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-19 22:11:17,689 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 22 states and 27 transitions. Complement of second has 7 states. [2019-11-19 22:11:17,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:11:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:11:17,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-19 22:11:17,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-19 22:11:17,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:17,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-19 22:11:17,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:17,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 8 letters. [2019-11-19 22:11:17,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:17,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2019-11-19 22:11:17,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:11:17,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 27 transitions. [2019-11-19 22:11:17,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-19 22:11:17,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 22:11:17,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2019-11-19 22:11:17,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:11:17,697 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-19 22:11:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2019-11-19 22:11:17,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-19 22:11:17,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 22:11:17,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-19 22:11:17,699 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-19 22:11:17,699 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-19 22:11:17,699 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 22:11:17,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2019-11-19 22:11:17,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:11:17,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:11:17,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:11:17,701 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2019-11-19 22:11:17,701 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:11:17,701 INFO L794 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 316#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 317#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 333#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 332#L550-3 assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 330#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 329#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 327#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 318#L550-3 assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 319#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 323#L551-2 [2019-11-19 22:11:17,701 INFO L796 eck$LassoCheckResult]: Loop: 323#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 325#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 328#L550-3 assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 331#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 323#L551-2 [2019-11-19 22:11:17,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:17,701 INFO L82 PathProgramCache]: Analyzing trace with hash -980235885, now seen corresponding path program 2 times [2019-11-19 22:11:17,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:17,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417133383] [2019-11-19 22:11:17,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:17,735 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:17,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:17,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 4 times [2019-11-19 22:11:17,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:17,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257497010] [2019-11-19 22:11:17,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:17,747 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:17,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:17,747 INFO L82 PathProgramCache]: Analyzing trace with hash -987685255, now seen corresponding path program 2 times [2019-11-19 22:11:17,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:17,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759812710] [2019-11-19 22:11:17,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:17,783 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:18,178 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2019-11-19 22:11:18,285 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:11:18,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:11:18,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:11:18,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:11:18,286 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:11:18,286 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:18,286 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:11:18,286 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:11:18,286 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration4_Lasso [2019-11-19 22:11:18,286 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:11:18,287 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:11:18,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:18,826 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:11:18,826 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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 [2019-11-19 22:11:18,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:18,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:18,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:18,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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 [2019-11-19 22:11:18,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:18,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:18,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:18,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:18,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:18,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:18,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:18,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:18,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:18,899 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:18,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:18,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,911 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-19 22:11:18,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,912 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-19 22:11:18,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:18,915 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:18,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:18,923 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 [2019-11-19 22:11:18,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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) [2019-11-19 22:11:18,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:18,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:18,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:18,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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) [2019-11-19 22:11:18,950 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 [2019-11-19 22:11:18,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:18,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:18,959 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:18,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:18,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:18,974 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:18,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:18,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:18,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:18,987 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:18,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:18,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:18,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:18,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:18,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:19,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:19,005 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 [2019-11-19 22:11:19,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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) [2019-11-19 22:11:19,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:19,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:19,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:19,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:19,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:19,021 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:19,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:19,025 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:19,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:19,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:19,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:19,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:19,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:19,041 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:19,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:19,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:19,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:19,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:19,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:19,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:19,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:19,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:19,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:19,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:19,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:19,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:19,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:19,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:19,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:19,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:19,101 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 [2019-11-19 22:11:19,108 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:11:19,115 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-19 22:11:19,115 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/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) [2019-11-19 22:11:19,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:19,122 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:11:19,122 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:11:19,123 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3 Supporting invariants [] [2019-11-19 22:11:19,192 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-19 22:11:19,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 22:11:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:19,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:11:19,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:19,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:11:19,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:19,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:11:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:11:19,285 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 22:11:19,285 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-19 22:11:19,320 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2019-11-19 22:11:19,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:11:19,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:11:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Exception during sending of exit command (exit): Broken pipe [2019-11-19 22:11:19,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-19 22:11:19,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:19,333 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:11:19,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:19,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:11:19,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:19,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:11:19,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:19,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:11:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:11:19,407 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 22:11:19,407 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-19 22:11:19,443 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2019-11-19 22:11:19,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:11:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:11:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-19 22:11:19,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-19 22:11:19,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:19,445 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:11:19,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:19,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:11:19,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:19,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:11:19,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:19,479 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:11:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:11:19,506 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 3 loop predicates [2019-11-19 22:11:19,506 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-19 22:11:19,535 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 32 states and 40 transitions. Complement of second has 6 states. [2019-11-19 22:11:19,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:11:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:11:19,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-19 22:11:19,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-19 22:11:19,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:19,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-19 22:11:19,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:19,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 8 letters. [2019-11-19 22:11:19,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:19,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2019-11-19 22:11:19,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-19 22:11:19,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 32 transitions. [2019-11-19 22:11:19,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-19 22:11:19,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 22:11:19,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2019-11-19 22:11:19,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:11:19,544 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-11-19 22:11:19,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2019-11-19 22:11:19,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 10. [2019-11-19 22:11:19,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 22:11:19,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-19 22:11:19,545 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-19 22:11:19,545 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-19 22:11:19,545 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 22:11:19,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2019-11-19 22:11:19,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-19 22:11:19,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:11:19,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:11:19,546 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:11:19,546 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:11:19,547 INFO L794 eck$LassoCheckResult]: Stem: 642#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 640#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 641#L551-2 [2019-11-19 22:11:19,547 INFO L796 eck$LassoCheckResult]: Loop: 641#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 649#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 643#L550-3 assume !!main_#t~short6;havoc main_#t~mem5;havoc main_#t~short6;havoc main_#t~mem4; 644#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 641#L551-2 [2019-11-19 22:11:19,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:19,547 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2019-11-19 22:11:19,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:19,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376884401] [2019-11-19 22:11:19,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:19,555 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:19,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1142249, now seen corresponding path program 1 times [2019-11-19 22:11:19,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:19,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193880575] [2019-11-19 22:11:19,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:19,565 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:19,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:19,566 INFO L82 PathProgramCache]: Analyzing trace with hash 889569451, now seen corresponding path program 3 times [2019-11-19 22:11:19,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:11:19,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613638491] [2019-11-19 22:11:19,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:11:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:11:19,581 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:11:19,783 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:11:19,783 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:11:19,784 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:11:19,784 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:11:19,784 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:11:19,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:19,784 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:11:19,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:11:19,784 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration5_Lasso [2019-11-19 22:11:19,784 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:11:19,784 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:11:19,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:19,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:20,216 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:11:20,216 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:20,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:20,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:20,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:20,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:20,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:20,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:20,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:20,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:20,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:20,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:20,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:20,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:20,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:20,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:20,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:20,249 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:20,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:20,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:20,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:20,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:20,258 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:20,258 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,272 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,279 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:20,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:20,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:20,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:20,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:20,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:20,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:20,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:20,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:20,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:20,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:20,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:20,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:20,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:20,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:20,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:20,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:20,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:20,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:20,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:20,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:20,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:20,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:20,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:20,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:20,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:20,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:20,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:20,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:20,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:20,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:20,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:20,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:20,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:20,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:20,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:20,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:20,331 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:11:20,332 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-19 22:11:20,332 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_552531b7-9985-40b1-913a-f33149c2d718/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:20,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:11:20,336 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 22:11:20,336 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:11:20,336 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_4 Supporting invariants [] [2019-11-19 22:11:20,353 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2019-11-19 22:11:20,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 22:11:20,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:20,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 22:11:20,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:20,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 22:11:20,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:20,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:11:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:11:20,433 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 22:11:20,433 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand 5 states. [2019-11-19 22:11:20,499 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand 5 states. Result 26 states and 33 transitions. Complement of second has 8 states. [2019-11-19 22:11:20,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-19 22:11:20,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 22:11:20,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-11-19 22:11:20,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-19 22:11:20,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:20,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-19 22:11:20,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:20,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-19 22:11:20,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:20,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2019-11-19 22:11:20,502 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:11:20,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2019-11-19 22:11:20,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 22:11:20,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 22:11:20,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 22:11:20,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:11:20,502 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:11:20,502 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:11:20,502 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:11:20,502 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 22:11:20,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:11:20,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:11:20,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 22:11:20,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:11:20 BoogieIcfgContainer [2019-11-19 22:11:20,511 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:11:20,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:11:20,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:11:20,511 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:11:20,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:11:13" (3/4) ... [2019-11-19 22:11:20,519 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:11:20,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:11:20,521 INFO L168 Benchmark]: Toolchain (without parser) took 7875.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 940.7 MB in the beginning and 936.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 193.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:11:20,521 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:11:20,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:11:20,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:11:20,527 INFO L168 Benchmark]: Boogie Preprocessor took 32.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:11:20,528 INFO L168 Benchmark]: RCFGBuilder took 274.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:11:20,530 INFO L168 Benchmark]: BuchiAutomizer took 7054.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 1.1 GB in the beginning and 936.9 MB in the end (delta: 161.7 MB). Peak memory consumption was 212.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:11:20,531 INFO L168 Benchmark]: Witness Printer took 8.51 ms. Allocated memory is still 1.2 GB. Free memory is still 936.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:11:20,533 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 464.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.78 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 274.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7054.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 1.1 GB in the beginning and 936.9 MB in the end (delta: 161.7 MB). Peak memory consumption was 212.5 MB. Max. memory is 11.5 GB. * Witness Printer took 8.51 ms. Allocated memory is still 1.2 GB. Free memory is still 936.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 6.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 50 SDtfs, 47 SDslu, 18 SDs, 0 SdLazy, 74 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital247 mio100 ax109 hnf100 lsp86 ukn61 mio100 lsp41 div100 bol100 ite100 ukn100 eq185 hnf88 smp97 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms 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...